Add optional full-band Galileo E1 CBOC support

README.md

@@ -2,7 +2,8 @@
 
 This repository is a modular Python reference model for a Galileo receiver
 baseband and a starting point for bit-true/RTL verification. It currently
-implements E1B data and E1C pilot processing with a BOC(1,1) local replica,
+implements E1B data and E1C pilot processing with selectable BOC(1,1) or
+full-band CBOC(6,1,1/11) local replicas,
 streaming real-IF or complex-IQ front ends, FFT PCPS acquisition, independent
 tracking channels, fixed-point boundary models, and hardware sizing models.
 The floating reference uses `numpy.float64`/`numpy.complex128` throughout;
@@ -23,7 +24,9 @@ complex IQ; both acquisition and tracking pass on its IQ8 output. See the
 ## Status and limitations
 
 - E1 profile: 1.023 Mcps, 4092 chips, 4 ms, 1575.42 MHz.
-- BOC(1,1) is implemented; CBOC and unambiguous BOC are API extension points.
+- BOC(1,1) remains the default regression mode. Full-band CBOC is enabled
+  explicitly per acquisition/tracking configuration. Unambiguous BOC remains
+  an API extension point.
 - E1B bit-transition hypotheses and E1C secondary wipeoff/search are available
   for acquisition. E1C tracking jointly searches the 25-symbol phase and
   residual carrier frequency before continuous secondary-code wipeoff.
@@ -74,6 +77,7 @@ python -m galileo_rx.cli validate-signalsim --signalsim-path signalsim/SignalSim
 python -m galileo_rx.cli collect-navigation --config configs/navigation_collection.yaml --output-dir reports/navigation_run
 python -m galileo_rx.cli collect-navigation --config configs/navigation_collection.yaml --output-dir reports/navigation_e1b --tracking-mode e1b_only
 python tools/compare_e1_tracking_modes.py --config configs/navigation_collection.yaml --output-dir reports/e1_tracking_mode_comparison
+python tools/run_cboc_validation.py --output-dir reports --duration-s 0.30
 python -m galileo_rx.cli prompts-to-symbols --input verification/navigation/signalsim_navigation_multisat_e1c_pilot_aided_e1b/prn_01/prompt_epochs.npz --prn 1 --output-dir reports/navigation_replay/prn_01
 python -m galileo_rx.cli decode-inav --input verification/navigation/signalsim_navigation_multisat_e1c_pilot_aided_e1b/prn_01/prompt_epochs.npz --prn 1 --output-dir reports/navigation_replay/prn_01
 python -m galileo_rx.cli inspect-navigation --input verification/navigation/signalsim_navigation_multisat_e1c_pilot_aided_e1b/prn_01
@@ -136,10 +140,9 @@ the official 30×8 deinterleaver and soft Viterbi decoder, validates CRC-24Q, an
 parses typed word 1–6 data. Ephemerides are committed atomically only when words
 1–4 have matching IODnav; the previous valid set survives incomplete updates.
 
-The measured 32.2 s SignalSim regression decoded 70/70 CRC-valid pages. Four of
+The post-CBOC 32.2 s raw-IQ SignalSim regression decoded 75/75 CRC-valid pages.
-five tracked satellites produced complete ephemerides, clocks, healthy status,
+All five tracked satellites produced complete ephemerides, clocks, healthy
-and GST; PRN 19 correctly remained incomplete because word 1 was outside the
+status, and GST. Post-decode comparison against SignalSim's RINEX source passed at
-observation. Post-decode comparison against SignalSim's RINEX source passed at
 the broadcast quantization resolution. No simulator truth is accepted by the
 normal decoder API.
 

configs/acquisition_example.yaml

@@ -9,6 +9,7 @@ rf:
   sample_bit_width: 8
   sample_endianness: little
 acquisition:
+  modulation: BOC11
   doppler_min_hz: -5000.0
   doppler_max_hz: 5000.0
   doppler_step_hz: 250.0
@@ -18,6 +19,7 @@ acquisition:
   peak_exclusion_chips: 1.0
   zero_padding_mode: none
 tracking:
+  modulation: BOC11
   integration_ms: 4.0
   early_late_spacing_chips: 0.25
   very_early_late_spacing_chips: 0.75

configs/e1_cboc.yaml

@@ -0,0 +1,33 @@
+signal_profile: GALILEO_E1
+component: E1C
+prns: [1]
+rf:
+  sample_format: complex128
+  input_is_real_if: false
+  sampling_frequency_hz: 32736000.0
+  intermediate_frequency_hz: 2250000.0
+  sample_bit_width: 8
+  sample_endianness: little
+acquisition:
+  modulation: CBOC
+  doppler_min_hz: -10000.0
+  doppler_max_hz: 10000.0
+  doppler_step_hz: 250.0
+  coherent_integration_ms: 4.0
+  noncoherent_accumulations: 2
+  detection_threshold: 2.5
+  peak_exclusion_chips: 1.0
+  zero_padding_mode: none
+tracking:
+  modulation: CBOC
+  integration_ms: 4.0
+  early_late_spacing_chips: 0.25
+  very_early_late_spacing_chips: 0.75
+  dll_noise_bandwidth_hz: 1.0
+  pll_noise_bandwidth_hz: 15.0
+  fll_noise_bandwidth_hz: 20.0
+  pll_order: 3
+  dll_order: 2
+  use_fll_assist: true
+  pull_in_duration_ms: 20.0
+  secondary_code_mode: wipeoff

configs/e1_default.yaml

@@ -9,6 +9,7 @@ rf:
   sample_bit_width: 8
   sample_endianness: little
 acquisition:
+  modulation: BOC11
   doppler_min_hz: -10000.0
   doppler_max_hz: 10000.0
   doppler_step_hz: 250.0
@@ -19,6 +20,7 @@ acquisition:
   fft_length: null
   zero_padding_mode: next_power_of_two
 tracking:
+  modulation: BOC11
   integration_ms: 4.0
   early_late_spacing_chips: 0.25
   very_early_late_spacing_chips: 0.75

configs/tracking_example.yaml

@@ -9,6 +9,7 @@ rf:
   sample_bit_width: 8
   sample_endianness: little
 tracking:
+  modulation: BOC11
   integration_ms: 4.0
   early_late_spacing_chips: 0.25
   very_early_late_spacing_chips: 0.75

docs/cboc_support.md

@@ -0,0 +1,114 @@
+# Galileo E1 CBOC support
+
+## Definition and convention
+
+The implementation follows *Galileo Open Service Signal-in-Space Interface
+Control Document*, Issue 2.2 (November 2025), section 2.3.3, Table 10 and
+equation (12). With sine-phased square subcarriers
+
+```text
+sc_n(t) = sgn(sin(2 pi n R_c t)),  R_c = 1.023 MHz
+alpha = sqrt(10/11)
+beta  = sqrt(1/11)
+```
+
+the complete transmitted multiplex and its component replicas are
+
+```text
+s_E1(t) = (1/sqrt(2)) {
+    e_E1B(t) [alpha sc_1(t) + beta sc_6(t)]
+  - e_E1C(t) [alpha sc_1(t) - beta sc_6(t)]
+}
+
+CBOC_E1B(t) = alpha sc_1(t) + beta sc_6(t)
+CBOC_E1C(t) = alpha sc_1(t) - beta sc_6(t)
+```
+
+The complete transmitted E1 equation contains a common `1/sqrt(2)` power split
+and an additional outer minus sign on the E1C component. The outer sign is a
+constant carrier-phase ambiguity for an individual component receiver; it is
+not folded into the internal CBOC(-) weighting above. E1B and E1C occupy the
+same RF carrier and are not modeled as independent RF I/Q branches.
+
+At an exact subcarrier transition, the discrete convention selects the new
+half-cycle (`+1` at integer phase, `-1` at half-integer phase). A `1e-12`-cycle
+boundary tolerance makes vector and arbitrarily chunked float64 phase
+accumulators deterministic.
+
+## Architecture boundaries
+
+- Acquisition PRN/subcarrier replica: `signals/galileo_e1.py`, called and FFT
+  cached by `acquisition/fft_pcps.py`.
+- Acquisition carrier wipeoff: `fft_pcps.py`; it remains
+  `input * exp(-j 2 pi (IF + Doppler) n/Fs)` and is independent of modulation.
+- Tracking replicas: `tracking/correlator.py`; one reusable bank creates
+  VE/E/P/L/VL replicas for either modulation.
+- Tracking carrier wipeoff and coherent sums: `CorrelatorBank.correlate_with_phases`.
+- Physical parameters: `RfConfig` owns sampling rate and IF, `SignalProfile`
+  owns carrier/code rates, and `AcquisitionConfig`/`TrackingConfig` own the
+  explicit modulation choice.
+
+The tracking correlator carries independent float64 state for carrier phase,
+code phase, BOC(1,1) phase, and BOC(6,1) phase. The subcarrier frequency words
+follow the code-NCO frequency. The E1C pilot-aided E1B class shares those phase
+vectors between its pilot and data correlator branches; only E1B Prompt I/Q is
+sent to I/NAV recovery.
+
+## Full-band generator
+
+`FullBandE1SignalGenerator` defaults to 65.472 Msps internal generation, a
+129-tap Kaiser-window FIR with 12 MHz one-sided bandwidth, and integer
+decimation to 32.736 Msps. Filter coefficients, bandwidth, tap count, and
+oversampling are configurable. Its complex FIR state and all carrier/code
+states persist between calls. The causal FIR group delay is included in
+`GenerationTruth`; simulator truth is used only after receiver processing.
+
+This is intentionally distinct from SignalSim commit
+`80b262113e77c4482ca9f5cbfef9bcada402ed28`, whose Galileo E1 vector is a
+BOC(1,1) approximation and remains labeled only as BOC(1,1) validation.
+
+## Measured 32.736 Msps matrix
+
+The checked-in [JSON report](../reports/cboc_validation_report.json) and
+[Markdown report](../reports/cboc_validation_report.md) are produced by:
+
+```bash
+python tools/run_cboc_validation.py --output-dir reports --duration-s 0.30
+```
+
+All three cases acquired the correct 1250 Hz Doppler and 81.25-chip filtered
+delay, synchronized the E1C secondary code with correlation above 0.9997 and
+zero sign errors, and ended with carrier and code lock. No cycle slips,
+discontinuities, or side-peak indications occurred.
+
+Using a BOC11 replica on the CBOC vector reduced acquisition peak power by
+0.317 dB relative to the matched CBOC replica. It produced no measurable delay
+bias at the 1/32-chip acquisition grid. Tail code biases were -0.00085 chips
+(compatibility) and -0.00087 chips (matched). The existing lock thresholds were
+not changed: all modes had the same 184 ms confirmed-lock interval after the
+configured 25-epoch smoother and three-epoch confirmation delay.
+
+The matched CBOC DLL discriminator RMS was 0.0527 chips versus 0.0351 chips in
+compatibility mode for this short run. The NCO state and code bias remained
+bounded, so this is recorded as a correlator-shape/discriminator calibration
+observation, not silently corrected by threshold or loop retuning.
+
+For the configured 55 dB-Hz source, the existing moment estimator reported
+47.88 dB-Hz for filtered BOC11 and approximately 42.31 dB-Hz for both CBOC
+receiver modes. Since matched and compatibility CBOC estimates agree while
+their lock/NCO states remain stable, this is retained as a front-end/CBOC C/N0
+calibration limitation rather than used to retune the loops or lock thresholds.
+The matched CBOC tail main-peak fraction remained above 0.915, its side-peak
+metric below 0.045, and it produced no side-peak flags.
+
+## Limitations
+
+- The focused CBOC matrix uses deterministic synthetic codes, not fabricated
+  Galileo code tables, and E1C pilot only. E1B page count is therefore reported
+  as not enabled. Official-code BOC11 E1B I/NAV/ephemeris coverage remains the
+  independent SignalSim regression.
+- The generator models a configurable linear front-end FIR, AWGN, Doppler,
+  code Doppler, clipping, and I/Q quantization. It does not yet model analog
+  group-delay ripple, oscillator phase noise, multipath, or interference.
+- No unambiguous CBOC acquisition discriminator is claimed. Side-peak
+  monitoring remains explicit.

docs/configuration.md

@@ -25,10 +25,17 @@ Default YAML files:
 - `e1_default.yaml`: requested 16.368 MHz nominal defaults.
 - `acquisition_example.yaml`: faster 4.092 MHz executable search.
 - `tracking_example.yaml`: 4.092 MHz tracking defaults.
+- `e1_cboc.yaml`: explicit full-band CBOC selection at 32.736 Msps and a
+  2.25 MHz analytic low IF.
 - `navigation_collection.yaml`: SignalSim IQ-to-I/NAV regression. Its default
   `tracking.architecture` is `e1c_pilot_aided_e1b`; the CLI can select
   `e1b_only` for an A/B replay.
 
+`AcquisitionConfig.modulation` and `TrackingConfig.modulation` independently
+select `BOC11` or `CBOC`. Both default to `BOC11`, so existing SignalSim and
+low-bandwidth configurations retain their measured behavior. A CBOC vector
+must set both fields to `CBOC` for a matched acquisition/tracking replica.
+
 The BOC lock detector parameters are part of `TrackingConfig`. The defaults use
 25 noncoherent power epochs, three confirmations, and the configured
 `loss_of_lock_epochs` for sustained failure. Carrier and BOC central/outer

reports/cboc_validation_report.json

@@ -0,0 +1,135 @@
+{
+  "generator": "independent band-limited Python Galileo E1 generator",
+  "truth_usage": "post-receiver error measurement only",
+  "cases": [
+    {
+      "case": "generated_BOC11__receiver_BOC11",
+      "transmit_modulation": "BOC11",
+      "receiver_modulation": "BOC11",
+      "sample_format": "complex128",
+      "sampling_frequency_hz": 32736000.0,
+      "internal_sampling_frequency_hz": 65472000.0,
+      "intermediate_frequency_hz": 2250000.0,
+      "frontend_one_sided_bandwidth_hz": 12000000.0,
+      "frontend_fir_taps": 129,
+      "filter_group_delay_samples": 32.0,
+      "acquisition_detected": true,
+      "acquisition_peak_metric": 111.59981066286072,
+      "acquisition_peak_power": 34317234269.486805,
+      "estimated_code_delay_chips": 81.25,
+      "truth_code_delay_chips_including_filter": 81.25,
+      "code_delay_error_chips": 0.0,
+      "estimated_carrier_frequency_hz": 2251250.0,
+      "estimated_doppler_hz": 1250.0,
+      "doppler_error_hz": 0.0,
+      "secondary_code_phase": 2,
+      "secondary_code_correlation": 0.999801055475596,
+      "secondary_code_sign_errors": 0,
+      "tracking_epochs": 72,
+      "tracking_duration_s": 0.28800000000000003,
+      "longest_joint_lock_duration_s": 0.184,
+      "final_carrier_lock": true,
+      "final_code_lock": true,
+      "pll_error_rms_rad": 0.029726592473925416,
+      "dll_error_rms_chips": 0.02297667464497775,
+      "code_tracking_bias_chips": 1.5854226921874216e-05,
+      "code_tracking_error_rms_chips": 0.00025151975426697875,
+      "median_cn0_estimate_db_hz": 47.880388780252005,
+      "cycle_slip_count": 0,
+      "sample_discontinuity_count": 0,
+      "side_peak_suspected_epochs": 0,
+      "tail_smoothed_code_lock_metric_median": 15.4703736731197,
+      "tail_boc_main_peak_fraction_minimum": 0.8977679303792508,
+      "tail_boc_side_peak_metric_maximum": 0.0575388903784898,
+      "e1b_page_decode_count": null,
+      "e1b_navigation_data_enabled": false,
+      "processing_time_s": 4.839926584994828
+    },
+    {
+      "case": "generated_CBOC__receiver_BOC11",
+      "transmit_modulation": "CBOC",
+      "receiver_modulation": "BOC11",
+      "sample_format": "complex128",
+      "sampling_frequency_hz": 32736000.0,
+      "internal_sampling_frequency_hz": 65472000.0,
+      "intermediate_frequency_hz": 2250000.0,
+      "frontend_one_sided_bandwidth_hz": 12000000.0,
+      "frontend_fir_taps": 129,
+      "filter_group_delay_samples": 32.0,
+      "acquisition_detected": true,
+      "acquisition_peak_metric": 115.61214182481689,
+      "acquisition_peak_power": 28044260424.17594,
+      "estimated_code_delay_chips": 81.25,
+      "truth_code_delay_chips_including_filter": 81.25,
+      "code_delay_error_chips": 0.0,
+      "estimated_carrier_frequency_hz": 2251250.0,
+      "estimated_doppler_hz": 1250.0,
+      "doppler_error_hz": 0.0,
+      "secondary_code_phase": 2,
+      "secondary_code_correlation": 0.9997971190771551,
+      "secondary_code_sign_errors": 0,
+      "tracking_epochs": 72,
+      "tracking_duration_s": 0.28800000000000003,
+      "longest_joint_lock_duration_s": 0.184,
+      "final_carrier_lock": true,
+      "final_code_lock": true,
+      "pll_error_rms_rad": 0.030845816038584276,
+      "dll_error_rms_chips": 0.03505125628223577,
+      "code_tracking_bias_chips": -0.0008470738236610487,
+      "code_tracking_error_rms_chips": 0.0009952893933792282,
+      "median_cn0_estimate_db_hz": 42.31146354235335,
+      "cycle_slip_count": 0,
+      "sample_discontinuity_count": 0,
+      "side_peak_suspected_epochs": 0,
+      "tail_smoothed_code_lock_metric_median": 17.865460658014058,
+      "tail_boc_main_peak_fraction_minimum": 0.9061270492837439,
+      "tail_boc_side_peak_metric_maximum": 0.05289988968883203,
+      "e1b_page_decode_count": null,
+      "e1b_navigation_data_enabled": false,
+      "processing_time_s": 5.107619269001589
+    },
+    {
+      "case": "generated_CBOC__receiver_CBOC",
+      "transmit_modulation": "CBOC",
+      "receiver_modulation": "CBOC",
+      "sample_format": "complex128",
+      "sampling_frequency_hz": 32736000.0,
+      "internal_sampling_frequency_hz": 65472000.0,
+      "intermediate_frequency_hz": 2250000.0,
+      "frontend_one_sided_bandwidth_hz": 12000000.0,
+      "frontend_fir_taps": 129,
+      "filter_group_delay_samples": 32.0,
+      "acquisition_detected": true,
+      "acquisition_peak_metric": 118.51359102364712,
+      "acquisition_peak_power": 30169065694.99317,
+      "estimated_code_delay_chips": 81.25,
+      "truth_code_delay_chips_including_filter": 81.25,
+      "code_delay_error_chips": 0.0,
+      "estimated_carrier_frequency_hz": 2251250.0,
+      "estimated_doppler_hz": 1250.0,
+      "doppler_error_hz": 0.0,
+      "secondary_code_phase": 2,
+      "secondary_code_correlation": 0.9997767185931239,
+      "secondary_code_sign_errors": 0,
+      "tracking_epochs": 72,
+      "tracking_duration_s": 0.28800000000000003,
+      "longest_joint_lock_duration_s": 0.184,
+      "final_carrier_lock": true,
+      "final_code_lock": true,
+      "pll_error_rms_rad": 0.0272969018394947,
+      "dll_error_rms_chips": 0.052729413588935264,
+      "code_tracking_bias_chips": -0.0008745638097479968,
+      "code_tracking_error_rms_chips": 0.0011967645110863632,
+      "median_cn0_estimate_db_hz": 42.30148722049758,
+      "cycle_slip_count": 0,
+      "sample_discontinuity_count": 0,
+      "side_peak_suspected_epochs": 0,
+      "tail_smoothed_code_lock_metric_median": 50.858434903966014,
+      "tail_boc_main_peak_fraction_minimum": 0.9155160124924913,
+      "tail_boc_side_peak_metric_maximum": 0.04623326118514734,
+      "e1b_page_decode_count": null,
+      "e1b_navigation_data_enabled": false,
+      "processing_time_s": 5.774479466002958
+    }
+  ]
+}

reports/cboc_validation_report.md

@@ -0,0 +1,11 @@
+# Galileo E1 full-band CBOC validation
+
+Generated at 65.472 Msps, passed through a 129-tap Kaiser FIR, and decimated to 32.736 Msps. All receiver arrays use float64/complex128.
+
+| Case | Acquisition metric | Code delay (chips) | Doppler (Hz) | Longest lock (s) | PLL RMS (rad) | DLL RMS (chips) | Code bias (chips) | C/N0 estimate | E1C secondary corr. |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| generated_BOC11__receiver_BOC11 | 111.600 | 81.250000 | 1250.0 | 0.184 | 0.029727 | 0.022977 | 0.000016 | 47.880 | 0.999801 |
+| generated_CBOC__receiver_BOC11 | 115.612 | 81.250000 | 1250.0 | 0.184 | 0.030846 | 0.035051 | -0.000847 | 42.311 | 0.999797 |
+| generated_CBOC__receiver_CBOC | 118.514 | 81.250000 | 1250.0 | 0.184 | 0.027297 | 0.052729 | -0.000875 | 42.301 | 0.999777 |
+
+E1B navigation data was not enabled in this focused E1C-pilot matrix; page counts are therefore null, not zero-result decoder failures. The independent SignalSim regression remains the E1B BOC(1,1) I/NAV proof.

reports/navigation_run/inav_collection_report.json

@@ -1,5 +1,6 @@
 {
   "decoder_truth_inputs": [],
+  "tracking_architecture": "e1c_pilot_aided_e1b",
   "icd": "Galileo OS SIS ICD Issue 2.2, November 2025",
   "signalsim_commit": "80b262113e77c4482ca9f5cbfef9bcada402ed28",
   "sample_file": "/home/onur/Desktop/galileo/verification/vectors/signalsim/navigation_multisat/navigation_multisat_iq8.bin",
@@ -10,17 +11,24 @@
   "satellites": {
     "1": {
       "prn": 1,
+      "tracking_architecture": "e1c_pilot_aided_e1b",
+      "acquisition_component": "E1C",
       "acquisition_detected": true,
-      "acquisition_time_s": 0.1004119270000956,
+      "acquisition_time_s": 0.10627389200089965,
       "raw_doppler_hz": 1750.0,
       "expected_doppler_hz": 1828.0,
       "start_sample_timestamp": 90995,
       "tracking_epoch_count": 16088,
-      "tracking_time_s": 13.650105177999649,
+      "tracking_time_s": 30.29040445300052,
       "tracking_final_state": "PLL_TRACK",
-      "tracking_reacquisition_requests": 10,
+      "tracking_reacquisition_requests": 0,
-      "tracking_lock_timestamp": 107363,
+      "tracking_lock_timestamp": 311963,
       "prompt_epoch_count": 8044,
+      "valid_prompt_epoch_count": 8044,
+      "invalid_prompt_epoch_count": 0,
+      "cycle_slips": 0,
+      "sample_discontinuities": 0,
+      "raw_navigation_symbol_count": 8044,
       "first_synchronized_symbol_timestamp": 4428515,
       "first_page_sync_timestamp": 4428515,
       "first_crc_valid_page_timestamp": 4428515,
@@ -44,27 +52,151 @@
       "clock_parameters": true,
       "health_valid": true,
       "data_valid": true,
-      "decoding_time_s": 1.260811995001859
+      "decoding_time_s": 1.2302890369974193,
+      "secondary_code_sync": {
+        "phase": 10,
+        "residual_frequency_hz": 59.5,
+        "normalized_correlation": 0.9941599620460754,
+        "compared_periods": 100,
+        "sign_errors": 0
+      },
+      "lock_analysis": {
+        "prn": 1,
+        "epochs": 16088,
+        "integration_ms": 2.0,
+        "start_sample_timestamp": 90995,
+        "end_sample_timestamp": 131755187,
+        "raw_carrier_lock_pass_epochs": 16078,
+        "raw_code_lock_pass_epochs": 15617,
+        "raw_combined_lock_pass_epochs": 15617,
+        "raw_combined_lock_fail_epochs": 471,
+        "false_transition_count": 102,
+        "legacy_code_lock_falling_edges": 102,
+        "boc_aware_code_lock_falling_edges": 0,
+        "boc_aware_metric_valid_epochs": 16064,
+        "boc_aware_code_lock_pass_epochs": 16062,
+        "boc_aware_combined_lock_pass_epochs": 16062,
+        "boc_aware_longest_code_lock_s": 32.124,
+        "boc_side_peak_suspected_epochs": 0,
+        "carrier_metric_caused_transitions": 0,
+        "code_metric_caused_transitions": 102,
+        "symbol_transition_coincident_false_transitions": 0,
+        "cycle_slips": 0,
+        "sample_discontinuities": 0,
+        "cn0_unavailable_false_transitions": 0,
+        "false_run_count": 102,
+        "single_epoch_false_runs": 45,
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@@ -82,66 +214,313 @@
       "clock_parameters": true,
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@@ -159,27 +538,151 @@
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+        "start_sample_timestamp": 93628,
+        "end_sample_timestamp": 131757820,
+        "raw_carrier_lock_pass_epochs": 16031,
+        "raw_code_lock_pass_epochs": 15249,
+        "raw_combined_lock_pass_epochs": 15249,
+        "raw_combined_lock_fail_epochs": 839,
+        "false_transition_count": 51,
+        "legacy_code_lock_falling_edges": 51,
+        "boc_aware_code_lock_falling_edges": 0,
+        "boc_aware_metric_valid_epochs": 16064,
+        "boc_aware_code_lock_pass_epochs": 16062,
+        "boc_aware_combined_lock_pass_epochs": 16059,
+        "boc_aware_longest_code_lock_s": 32.124,
+        "boc_side_peak_suspected_epochs": 0,
+        "carrier_metric_caused_transitions": 0,
+        "code_metric_caused_transitions": 51,
+        "symbol_transition_coincident_false_transitions": 0,
+        "cycle_slips": 0,
+        "sample_discontinuities": 0,
+        "cn0_unavailable_false_transitions": 0,
+        "false_run_count": 51,
+        "single_epoch_false_runs": 4,
+        "maximum_false_run_epochs": 157,
+        "maximum_false_run_ms": 314.0,
+        "maximum_continuous_raw_lock_epochs": 793,
+        "maximum_continuous_raw_lock_s": 1.586,
+        "carrier_metric_percentiles": {
+          "1": 0.7939514446493192,
+          "5": 0.985632857889365,
+          "50": 0.9988523785765591,
+          "95": 0.9999895032338855,
+          "99": 0.9999995002250147
+        },
+        "code_metric_percentiles": {
+          "1": 0.06616391188826821,
+          "5": 0.2581154135198231,
+          "50": 14.22150508819822,
+          "95": 21.041903291304745,
+          "99": 25.29011298405983
+        },
+        "boc_main_peak_fraction_percentiles": {
+          "1": 0.8328410713646706,
+          "5": 0.862839862016292,
+          "50": 0.8894454265519192,
+          "95": 0.899005820753033,
+          "99": 0.902725891411603
+        },
+        "boc_side_peak_metric_percentiles": {
+          "1": 0.05581216956145967,
+          "5": 0.0581020070281789,
+          "50": 0.06537705791281424,
+          "95": 0.12414647994867094,
+          "99": 0.19464888907499955
+        },
+        "boc_main_peak_coherence_percentiles": {
+          "1": 0.32651431878020987,
+          "5": 0.7456684567711471,
+          "50": 0.9698504431158739,
+          "95": 0.9804936771751901,
+          "99": 0.9837504008164109
+        },
+        "legacy_code_metric_failure_behavior": {
+          "epochs": 682,
+          "dll_error_rms_chips": 0.08442597625870917,
+          "dll_error_p99_abs_chips": 0.11360544478812587,
+          "code_phase_residual_rms_chips": 5.679331578203824,
+          "code_phase_residual_p99_abs_chips": 7.326207964266705,
+          "prompt_power_median": 104189541.93969142,
+          "early_power_median": 503192371.15070486,
+          "late_power_median": 1403405103.7404156,
+          "very_early_power_median": 22039174.93790304,
+          "very_late_power_median": 317213067.5344795,
+          "boc_main_peak_fraction_min": 0.8192520869211634,
+          "boc_side_peak_metric_max": 0.21126892991099358,
+          "boc_main_peak_coherence_min": 0.3116800253668606
+        },
+        "legacy_code_metric_pass_behavior": {
+          "epochs": 15157,
+          "dll_error_rms_chips": 0.05453659411635098,
+          "dll_error_p99_abs_chips": 0.1449088577056262,
+          "code_phase_residual_rms_chips": 4.188063318602212,
+          "code_phase_residual_p99_abs_chips": 7.374789512632724,
+          "prompt_power_median": 1569583185.8754468,
+          "early_power_median": 103618886.08421741,
+          "late_power_median": 103783265.51861823,
+          "very_early_power_median": 104017003.65515691,
+          "very_late_power_median": 104035110.46635103,
+          "boc_main_peak_fraction_min": 0.8344860559063105,
+          "boc_side_peak_metric_max": 0.19273063690182018,
+          "boc_main_peak_coherence_min": 0.33714214192677894
+        },
+        "post_pull_in": {
+          "pll_error_rms_rad": 0.08950722912725978,
+          "pll_error_p99_abs_rad": 0.34532589523816604,
+          "dll_error_rms_chips": 0.056152318470159265,
+          "dll_error_p99_abs_chips": 0.14402921672670457,
+          "carrier_frequency_min_hz": 1022268.5496190831,
+          "carrier_frequency_max_hz": 1022294.5921728422,
+          "carrier_frequency_last_minus_first_hz": -11.265239437692799,
+          "code_frequency_min_hz": 1022998.8592261485,
+          "code_frequency_max_hz": 1023000.1806048183,
+          "code_frequency_last_minus_first_hz": -0.1938835997134447,
+          "cn0_median_db_hz": 47.64003907257697,
+          "cn0_min_db_hz": 28.276106571211788
+        }
+      }
     },
     "27": {
       "prn": 27,
+      "tracking_architecture": "e1c_pilot_aided_e1b",
+      "acquisition_component": "E1C",
       "acquisition_detected": true,
-      "acquisition_time_s": 0.08157938700605882,
+      "acquisition_time_s": 0.09328085999732139,
       "raw_doppler_hz": -2750.0,
       "expected_doppler_hz": -2637.0,
       "start_sample_timestamp": 88014,
       "tracking_epoch_count": 16088,
-      "tracking_time_s": 13.978430488001322,
+      "tracking_time_s": 30.066800435000914,
       "tracking_final_state": "PLL_TRACK",
       "tracking_reacquisition_requests": 0,
-      "tracking_lock_timestamp": 96198,
+      "tracking_lock_timestamp": 1381086,
       "prompt_epoch_count": 8044,
-      "first_synchronized_symbol_timestamp": 12642270,
+      "valid_prompt_epoch_count": 8044,
-      "first_page_sync_timestamp": 12642270,
+      "invalid_prompt_epoch_count": 0,
-      "first_crc_valid_page_timestamp": 12642270,
+      "cycle_slips": 0,
-      "page_parts": 29,
+      "sample_discontinuities": 0,
-      "pages": 14,
+      "raw_navigation_symbol_count": 8044,
-      "crc_passes": 14,
+      "first_synchronized_symbol_timestamp": 4458270,
+      "first_page_sync_timestamp": 4458270,
+      "first_crc_valid_page_timestamp": 4458270,
+      "page_parts": 31,
+      "pages": 15,
+      "crc_passes": 15,
       "crc_failures": 0,
       "fec_failures": 0,
       "received_word_types": [
@@ -197,7 +700,124 @@
       "clock_parameters": true,
       "health_valid": true,
       "data_valid": true,
-      "decoding_time_s": 1.2002744679994066
+      "decoding_time_s": 1.2845996300020488,
+      "secondary_code_sync": {
+        "phase": 8,
+        "residual_frequency_hz": 36.5,
+        "normalized_correlation": 0.996052910867296,
+        "compared_periods": 100,
+        "sign_errors": 0
+      },
+      "lock_analysis": {
+        "prn": 27,
+        "epochs": 16088,
+        "integration_ms": 2.0,
+        "start_sample_timestamp": 88014,
+        "end_sample_timestamp": 131752206,
+        "raw_carrier_lock_pass_epochs": 15936,
+        "raw_code_lock_pass_epochs": 15647,
+        "raw_combined_lock_pass_epochs": 15556,
+        "raw_combined_lock_fail_epochs": 532,
+        "false_transition_count": 120,
+        "legacy_code_lock_falling_edges": 122,
+        "boc_aware_code_lock_falling_edges": 0,
+        "boc_aware_metric_valid_epochs": 16064,
+        "boc_aware_code_lock_pass_epochs": 16062,
+        "boc_aware_combined_lock_pass_epochs": 15931,
+        "boc_aware_longest_code_lock_s": 32.124,
+        "boc_side_peak_suspected_epochs": 0,
+        "carrier_metric_caused_transitions": 0,
+        "code_metric_caused_transitions": 120,
+        "symbol_transition_coincident_false_transitions": 0,
+        "cycle_slips": 0,
+        "sample_discontinuities": 0,
+        "cn0_unavailable_false_transitions": 0,
+        "false_run_count": 121,
+        "single_epoch_false_runs": 58,
+        "maximum_false_run_epochs": 155,
+        "maximum_false_run_ms": 310.0,
+        "maximum_continuous_raw_lock_epochs": 1095,
+        "maximum_continuous_raw_lock_s": 2.19,
+        "carrier_metric_percentiles": {
+          "1": 0.7206432555049623,
+          "5": 0.988611380400891,
+          "50": 0.9988895300080884,
+          "95": 0.9999910174511765,
+          "99": 0.9999996463442009
+        },
+        "code_metric_percentiles": {
+          "1": 0.0963945544624243,
+          "5": 9.022094975682883,
+          "50": 14.336371788159624,
+          "95": 21.01430502486875,
+          "99": 25.223778227213373
+        },
+        "boc_main_peak_fraction_percentiles": {
+          "1": 0.8563053481254727,
+          "5": 0.8761216856241046,
+          "50": 0.8897298346486104,
+          "95": 0.8989983348293147,
+          "99": 0.9027659012322223
+        },
+        "boc_side_peak_metric_percentiles": {
+          "1": 0.055865232111185666,
+          "5": 0.05827544455675619,
+          "50": 0.06545776761892909,
+          "95": 0.08721718306155764,
+          "99": 0.13554248142317915
+        },
+        "boc_main_peak_coherence_percentiles": {
+          "1": 0.6963850681372143,
+          "5": 0.8864149571238227,
+          "50": 0.9668775731513674,
+          "95": 0.9797144500640755,
+          "99": 0.9833546124056554
+        },
+        "legacy_code_metric_failure_behavior": {
+          "epochs": 353,
+          "dll_error_rms_chips": 0.08692287486188564,
+          "dll_error_p99_abs_chips": 0.12211690739906192,
+          "code_phase_residual_rms_chips": 20.83535121208654,
+          "code_phase_residual_p99_abs_chips": 26.7740789856638,
+          "prompt_power_median": 113099284.09916593,
+          "early_power_median": 496253334.48126817,
+          "late_power_median": 1219569538.2556756,
+          "very_early_power_median": 22055861.48928148,
+          "very_late_power_median": 272969579.3795633,
+          "boc_main_peak_fraction_min": 0.8211892376838884,
+          "boc_side_peak_metric_max": 0.20314364512635572,
+          "boc_main_peak_coherence_min": 0.47009464074954066
+        },
+        "legacy_code_metric_pass_behavior": {
+          "epochs": 15486,
+          "dll_error_rms_chips": 0.05696868079676946,
+          "dll_error_p99_abs_chips": 0.15879673488599466,
+          "code_phase_residual_rms_chips": 15.537475523073843,
+          "code_phase_residual_p99_abs_chips": 27.042686964558467,
+          "prompt_power_median": 1549780078.7121413,
+          "early_power_median": 102583529.59728253,
+          "late_power_median": 102880717.96247455,
+          "very_early_power_median": 101579724.68762413,
+          "very_late_power_median": 103913161.92134063,
+          "boc_main_peak_fraction_min": 0.8199308789902463,
+          "boc_side_peak_metric_max": 0.20370582760979403,
+          "boc_main_peak_coherence_min": 0.46610449527987624
+        },
+        "post_pull_in": {
+          "pll_error_rms_rad": 0.0768043956210642,
+          "pll_error_p99_abs_rad": 0.21602664107569355,
+          "dll_error_rms_chips": 0.057805622538207146,
+          "dll_error_p99_abs_chips": 0.15780488364179804,
+          "carrier_frequency_min_hz": 1020353.622410044,
+          "carrier_frequency_max_hz": 1020369.6683440519,
+          "carrier_frequency_last_minus_first_hz": -2.8634769301861525,
+          "code_frequency_min_hz": 1022997.605345076,
+          "code_frequency_max_hz": 1022998.939424797,
+          "code_frequency_last_minus_first_hz": -0.08650950586888939,
+          "cn0_median_db_hz": 45.94570799038448,
+          "cn0_min_db_hz": 32.27042575677653
+        }
+      }
     }
   },
   "galileo_time": {

reports/navigation_run/inav_collection_report.md

@@ -5,7 +5,7 @@ The standalone decoder consumed tracked E1B prompts only; simulator ephemeris an
 | PRN | Tracking | Symbol sync | Page sync | CRC pages | Complete ephemeris | Clock | Time | Ready |
 | --: | -------: | ----------: | --------: | --------: | -----------------: | ----: | ---: | ----: |
 | 1 | PLL_TRACK | True | 31 | 15 | True | True | True | True |
-| 4 | PLL_TRACK | True | 29 | 14 | True | True | True | True |
+| 4 | PLL_TRACK | True | 31 | 15 | True | True | True | True |
-| 19 | PLL_TRACK | True | 28 | 13 | False | True | True | False |
+| 19 | PLL_TRACK | True | 31 | 15 | True | True | True | True |
-| 21 | PLL_TRACK | True | 29 | 14 | True | True | True | True |
+| 21 | PLL_TRACK | True | 31 | 15 | True | True | True | True |
-| 27 | PLL_TRACK | True | 29 | 14 | True | True | True | True |
+| 27 | PLL_TRACK | True | 31 | 15 | True | True | True | True |

src/galileo_rx/acquisition/fft_pcps.py

@@ -11,6 +11,7 @@ from galileo_rx.config import AcquisitionConfig
 from galileo_rx.signal_profiles import SignalProfile
 from galileo_rx.signals.code_provider import CodeProvider
 from galileo_rx.signals.galileo_e1 import e1_local_replica
+from galileo_rx.signals.e1_modulation import E1Modulation, normalize_e1_modulation
 
 
 @dataclass(slots=True)
@@ -29,7 +30,8 @@ class PcpsAcquisition:
         self.sampling_frequency_hz = sampling_frequency_hz
         self.config = config
         config.validate()
-        self._code_fft_cache: dict[tuple[str, int, int, int, tuple[int, ...], float], npt.NDArray[np.complex128]] = {}
+        self.modulation = normalize_e1_modulation(config.modulation)
+        self._code_fft_cache: dict[tuple[str, E1Modulation, int, int, int, tuple[int, ...], float], npt.NDArray[np.complex128]] = {}
 
     @property
     def coherent_samples(self) -> int:
@@ -52,11 +54,12 @@ class PcpsAcquisition:
         effective_code_rate_hz = self.profile.code_rate_hz
         if self.config.code_doppler_aiding:
             effective_code_rate_hz *= 1.0 + doppler_hz / self.profile.carrier_frequency_hz
-        key = (component, prn, sample_count, fft_length, primary_signs, effective_code_rate_hz)
+        key = (component, self.modulation, prn, sample_count, fft_length, primary_signs, effective_code_rate_hz)
         if key not in self._code_fft_cache:
             replica = e1_local_replica(
                 self.profile, self.provider, component, prn, sample_count,
                 self.sampling_frequency_hz, code_rate_hz=effective_code_rate_hz,
+                modulation=self.modulation,
             )
             if primary_signs != (1,):
                 primary_samples = int(round(self.profile.component(component).primary_code_period_s * self.sampling_frequency_hz))

src/galileo_rx/config.py

@@ -8,6 +8,8 @@ from typing import Any, Literal, TypeVar
 
 import yaml
 
+from galileo_rx.signals.e1_modulation import E1Component, E1Modulation, normalize_e1_component, normalize_e1_modulation
+
 T = TypeVar("T")
 
 
@@ -31,6 +33,7 @@ class RfConfig:
 
 @dataclass(slots=True)
 class AcquisitionConfig:
+    modulation: E1Modulation | str = E1Modulation.BOC11
     doppler_min_hz: float = -10_000.0
     doppler_max_hz: float = 10_000.0
     doppler_step_hz: float = 250.0
@@ -51,6 +54,7 @@ class AcquisitionConfig:
     code_doppler_aiding: bool = True
 
     def validate(self) -> None:
+        normalize_e1_modulation(self.modulation)
         if self.doppler_max_hz < self.doppler_min_hz or self.doppler_step_hz <= 0:
             raise ValueError("invalid Doppler search range or step")
         if self.coherent_integration_ms <= 0 or self.noncoherent_accumulations < 1:
@@ -63,6 +67,7 @@ class AcquisitionConfig:
 
 @dataclass(slots=True)
 class TrackingConfig:
+    modulation: E1Modulation | str = E1Modulation.BOC11
     integration_ms: float = 4.0
     early_late_spacing_chips: float = 0.25
     very_early_late_spacing_chips: float = 0.75
@@ -92,6 +97,7 @@ class TrackingConfig:
     lock_signal_loss_power_ratio: float = 0.02
 
     def validate(self) -> None:
+        normalize_e1_modulation(self.modulation)
         if self.integration_ms <= 0:
             raise ValueError("tracking integration_ms must be positive")
         if not 0 < self.early_late_spacing_chips < self.very_early_late_spacing_chips:
@@ -132,7 +138,7 @@ class FixedPointConfig:
 @dataclass(slots=True)
 class ReceiverConfig:
     signal_profile: str = "GALILEO_E1"
-    component: Literal["E1B", "E1C"] = "E1C"
+    component: E1Component | str = E1Component.E1C
     prns: list[int] = field(default_factory=lambda: [1])
     rf: RfConfig = field(default_factory=RfConfig)
     acquisition: AcquisitionConfig = field(default_factory=AcquisitionConfig)
@@ -141,18 +147,19 @@ class ReceiverConfig:
     fixed_point: FixedPointConfig = field(default_factory=FixedPointConfig)
 
     def validate(self) -> None:
+        component = normalize_e1_component(self.component)
         self.rf.validate()
         self.acquisition.validate()
         self.tracking.validate()
         if not self.prns or any(prn <= 0 for prn in self.prns):
             raise ValueError("prns must contain positive identifiers")
         if self.acquisition.coherent_integration_ms > 4.0:
-            if self.component == "E1B" and self.acquisition.bit_transition_mode == "none":
+            if component is E1Component.E1B and self.acquisition.bit_transition_mode == "none":
                 raise ValueError("E1B coherent integration beyond 4 ms requires a bit-transition mode")
-            if self.component == "E1C" and self.acquisition.secondary_code_mode == "none":
+            if component is E1Component.E1C and self.acquisition.secondary_code_mode == "none":
                 raise ValueError("E1C coherent integration beyond 4 ms requires secondary-code handling")
         if self.tracking.integration_ms > 4.0:
-            if self.component == "E1B":
+            if component is E1Component.E1B:
                 raise ValueError("E1B tracking integration beyond 4 ms is unsafe without symbol synchronization")
             if self.tracking.secondary_code_mode == "none":
                 raise ValueError("E1C tracking beyond 4 ms requires secondary-code handling")

src/galileo_rx/signal_profiles.py

@@ -24,6 +24,7 @@ class SignalProfile:
     modulation: str
     boc_subcarrier_rate_hz: float
     components: dict[str, ComponentProfile]
+    supported_modulations: tuple[str, ...] = ("BOC11",)
 
     def component(self, name: str) -> ComponentProfile:
         try:
@@ -44,6 +45,7 @@ def galileo_e1_profile() -> SignalProfile:
             "E1B": ComponentProfile("E1B", "data", 4092, 0.004, None, 0.004),
             "E1C": ComponentProfile("E1C", "pilot", 4092, 0.004, 25, None),
         },
+        supported_modulations=("BOC11", "CBOC"),
     )
 
 
@@ -55,4 +57,3 @@ def get_signal_profile(name: str) -> SignalProfile:
         return PROFILES[name]()
     except KeyError as exc:
         raise ValueError(f"unknown signal profile {name!r}; available: {sorted(PROFILES)}") from exc
-

src/galileo_rx/signals/__init__.py

@@ -1,7 +1,18 @@
 """Signal code, modulation, and generation."""
 
 from .code_provider import CodeProvider, FileCodeProvider, SyntheticCodeProvider
+from .e1_modulation import E1Component, E1Modulation
+from .fullband_e1_generator import FullBandE1SignalGenerator, FullBandFrontendConfig
 from .signal_generator import SatelliteSignalConfig, SyntheticSignalGenerator
 
-__all__ = ["CodeProvider", "FileCodeProvider", "SyntheticCodeProvider", "SatelliteSignalConfig", "SyntheticSignalGenerator"]
+__all__ = [
-
+    "CodeProvider",
+    "E1Component",
+    "E1Modulation",
+    "FileCodeProvider",
+    "FullBandE1SignalGenerator",
+    "FullBandFrontendConfig",
+    "SatelliteSignalConfig",
+    "SyntheticCodeProvider",
+    "SyntheticSignalGenerator",
+]

src/galileo_rx/signals/boc.py

@@ -2,10 +2,55 @@
 
 from __future__ import annotations
 
+from dataclasses import dataclass
+
 import numpy as np
 import numpy.typing as npt
 
 
+def square_subcarrier_from_phase(
+    phase_cycles: npt.ArrayLike,
+) -> npt.NDArray[np.float64]:
+    """Return a sine-phased square subcarrier from phase in cycles.
+
+    The value at an exact integer-cycle boundary is defined as +1.  This is
+    the existing receiver convention and removes the otherwise undefined
+    ``sgn(sin(0))`` sample without affecting continuous-time signal power.
+    """
+    phase = np.mod(np.asarray(phase_cycles, dtype=np.float64), 1.0)
+    # A tiny boundary tolerance makes vector and arbitrarily chunked NCO runs
+    # choose the same half-cycle when roundoff lands immediately below an
+    # analytically exact transition.
+    half_cycle = np.floor(2.0 * phase + 1e-12).astype(np.int64) & 1
+    return np.where(half_cycle == 0, 1.0, -1.0).astype(np.float64)
+
+
+@dataclass(slots=True)
+class SquareSubcarrierNco:
+    """Phase-continuous square-wave NCO suitable for BOC subcarriers."""
+
+    sampling_frequency_hz: float
+    frequency_hz: float
+    phase_cycles: float = 0.0
+
+    def __post_init__(self) -> None:
+        if self.sampling_frequency_hz <= 0.0 or self.frequency_hz <= 0.0:
+            raise ValueError("subcarrier sampling and NCO frequencies must be positive")
+        self.phase_cycles %= 1.0
+
+    def phases(self, sample_count: int) -> npt.NDArray[np.float64]:
+        """Return current-sample phases and advance the accumulator."""
+        if sample_count < 0:
+            raise ValueError("sample_count must be nonnegative")
+        increment = self.frequency_hz / self.sampling_frequency_hz
+        phase = self.phase_cycles + np.arange(sample_count, dtype=np.float64) * increment
+        self.phase_cycles = float((self.phase_cycles + sample_count * increment) % 1.0)
+        return np.mod(phase, 1.0).astype(np.float64)
+
+    def samples(self, sample_count: int) -> npt.NDArray[np.float64]:
+        return square_subcarrier_from_phase(self.phases(sample_count))
+
+
 def boc_subcarrier(
     sample_count: int,
     sampling_frequency_hz: float,
@@ -16,7 +61,7 @@ def boc_subcarrier(
     if sample_count < 0 or sampling_frequency_hz <= 0 or subcarrier_frequency_hz <= 0:
         raise ValueError("invalid BOC generator parameters")
     phase = initial_phase_cycles + np.arange(sample_count, dtype=np.float64) * subcarrier_frequency_hz / sampling_frequency_hz
-    wave = np.where(np.mod(phase, 1.0) < 0.5, 1.0, -1.0)
+    wave = square_subcarrier_from_phase(phase)
     ending_phase = float((initial_phase_cycles + sample_count * subcarrier_frequency_hz / sampling_frequency_hz) % 1.0)
     return wave, ending_phase
 
@@ -32,7 +77,6 @@ def sample_primary_code(
     if code.ndim != 1 or code.size == 0 or sampling_frequency_hz <= 0 or code_rate_hz <= 0:
         raise ValueError("invalid code sampling parameters")
     phases = initial_code_phase_chips + np.arange(sample_count, dtype=np.float64) * code_rate_hz / sampling_frequency_hz
-    values = code[np.floor(phases).astype(np.int64) % code.size].astype(np.float64)
+    values = code[np.floor(phases + 1e-12).astype(np.int64) % code.size].astype(np.float64)
     ending_phase = float((initial_code_phase_chips + sample_count * code_rate_hz / sampling_frequency_hz) % code.size)
     return values, ending_phase
-

src/galileo_rx/signals/e1_modulation.py

@@ -0,0 +1,109 @@
+"""Galileo E1 BOC/CBOC component-replica definitions.
+
+The full-band convention follows Galileo OS SIS ICD Issue 2.2, equation (12):
+
+* E1B component bracket: ``alpha * sc_1 + beta * sc_6``
+* E1C component bracket: ``alpha * sc_1 - beta * sc_6``
+
+where ``alpha=sqrt(10/11)``, ``beta=sqrt(1/11)``, and each ``sc_n`` is a
+sine-phased square wave ``sgn(sin(2*pi*n*R_c*t))``.  Equation (12) also has an
+outer minus sign on the transmitted E1C term.  That constant sign is a carrier
+phase ambiguity for a component receiver and is deliberately not folded into
+the CBOC(-) replica definition here.
+"""
+
+from __future__ import annotations
+
+from enum import Enum
+
+import numpy as np
+import numpy.typing as npt
+
+from .boc import square_subcarrier_from_phase
+
+
+class E1Modulation(str, Enum):
+    BOC11 = "BOC11"
+    CBOC = "CBOC"
+
+
+class E1Component(str, Enum):
+    E1B = "E1B"
+    E1C = "E1C"
+
+
+CBOC_ALPHA = float(np.sqrt(10.0 / 11.0))
+CBOC_BETA = float(np.sqrt(1.0 / 11.0))
+
+
+def normalize_e1_modulation(value: E1Modulation | str) -> E1Modulation:
+    if isinstance(value, E1Modulation):
+        return value
+    normalized = str(value).strip().upper().replace("(", "").replace(")", "").replace(",", "")
+    aliases = {
+        "BOC11": E1Modulation.BOC11,
+        "BOC1 1": E1Modulation.BOC11,
+        "CBOC": E1Modulation.CBOC,
+        "CBOC611/11": E1Modulation.CBOC,
+    }
+    try:
+        return aliases[normalized]
+    except KeyError as exc:
+        raise ValueError(f"unsupported Galileo E1 modulation {value!r}") from exc
+
+
+def normalize_e1_component(value: E1Component | str) -> E1Component:
+    try:
+        return value if isinstance(value, E1Component) else E1Component(str(value).upper())
+    except ValueError as exc:
+        raise ValueError(f"unsupported Galileo E1 component {value!r}") from exc
+
+
+def component_cboc_boc61_sign(component: E1Component | str) -> int:
+    """Return the internal high-rate CBOC weight sign (+ for B, - for C)."""
+    return 1 if normalize_e1_component(component) is E1Component.E1B else -1
+
+
+def e1_transmitted_component_sign(component: E1Component | str) -> int:
+    """Return equation (12)'s outer E1 component sign (+B, -C)."""
+    return 1 if normalize_e1_component(component) is E1Component.E1B else -1
+
+
+def e1_subcarrier_replica(
+    component: E1Component | str,
+    modulation: E1Modulation | str,
+    boc11_phase_cycles: npt.ArrayLike,
+    boc61_phase_cycles: npt.ArrayLike | None = None,
+) -> npt.NDArray[np.float64]:
+    """Generate the normalized real E1 component subcarrier replica."""
+    selected = normalize_e1_modulation(modulation)
+    sc11 = square_subcarrier_from_phase(boc11_phase_cycles)
+    if selected is E1Modulation.BOC11:
+        return sc11
+    if boc61_phase_cycles is None:
+        raise ValueError("CBOC generation requires BOC(6,1) phase")
+    sc61 = square_subcarrier_from_phase(boc61_phase_cycles)
+    return (
+        CBOC_ALPHA * sc11
+        + component_cboc_boc61_sign(component) * CBOC_BETA * sc61
+    ).astype(np.float64)
+
+
+def e1_transmitted_subcarrier_replica(
+    component: E1Component | str,
+    modulation: E1Modulation | str,
+    boc11_phase_cycles: npt.ArrayLike,
+    boc61_phase_cycles: npt.ArrayLike | None = None,
+) -> npt.NDArray[np.float64]:
+    """Generate a transmitted component, including the CBOC E1C outer sign.
+
+    BOC11 remains the historical compatibility approximation and therefore
+    preserves its previous component sign. Full CBOC applies equation (12).
+    """
+    selected = normalize_e1_modulation(modulation)
+    replica = e1_subcarrier_replica(
+        component, selected, boc11_phase_cycles, boc61_phase_cycles
+    )
+    if selected is E1Modulation.CBOC:
+        replica = replica * e1_transmitted_component_sign(component)
+    return np.asarray(replica, dtype=np.float64)

src/galileo_rx/signals/fullband_e1_generator.py

@@ -0,0 +1,184 @@
+"""Band-limited full-band Galileo E1 BOC/CBOC test-vector generator."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass, replace
+
+import numpy as np
+import numpy.typing as npt
+from scipy.signal import firwin, lfilter
+
+from galileo_rx.signal_profiles import SignalProfile
+from galileo_rx.types import GenerationTruth, SatelliteTruth
+from .code_provider import CodeProvider
+from .signal_generator import (
+    ChannelModelConfig,
+    SatelliteSignalConfig,
+    SyntheticSignalGenerator,
+    quantize_normalized,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class FullBandFrontendConfig:
+    """Oversampling and realizable anti-alias/front-end filter settings."""
+
+    internal_oversampling: int = 2
+    frontend_one_sided_bandwidth_hz: float = 12.0e6
+    fir_tap_count: int = 129
+    fir_taps: tuple[float, ...] | None = None
+
+    def validate(self, output_sampling_frequency_hz: float) -> None:
+        if self.internal_oversampling < 2:
+            raise ValueError("full-band generation requires internal_oversampling >= 2")
+        if not 0.0 < self.frontend_one_sided_bandwidth_hz < output_sampling_frequency_hz / 2.0:
+            raise ValueError("front-end one-sided bandwidth must lie below output Nyquist")
+        if self.fir_taps is None and (self.fir_tap_count < 3 or self.fir_tap_count % 2 == 0):
+            raise ValueError("designed full-band FIR must have an odd tap count >= 3")
+        if self.fir_taps is not None and len(self.fir_taps) < 2:
+            raise ValueError("explicit full-band FIR requires at least two taps")
+
+
+class FullBandE1SignalGenerator:
+    """Generate CBOC at a higher rate, FIR filter, and integer-decimate.
+
+    The FIR and decimation states persist across calls.  No assumption is made
+    about integral samples per BOC(6,1) sign interval.  A causal FIR is used,
+    so ``GenerationTruth`` includes its deterministic group delay in the
+    reported code delay.
+    """
+
+    def __init__(
+        self,
+        profile: SignalProfile,
+        code_provider: CodeProvider,
+        sampling_frequency_hz: float = 32.736e6,
+        intermediate_frequency_hz: float = 0.0,
+        output_is_real_if: bool = False,
+        satellites: list[SatelliteSignalConfig] | None = None,
+        channel: ChannelModelConfig | None = None,
+        frontend: FullBandFrontendConfig | None = None,
+    ) -> None:
+        if sampling_frequency_hz <= 0.0:
+            raise ValueError("sampling_frequency_hz must be positive")
+        if abs(intermediate_frequency_hz) >= sampling_frequency_hz / 2.0:
+            raise ValueError("output IF must lie strictly inside Nyquist")
+        self.profile = profile
+        self.code_provider = code_provider
+        self.sampling_frequency_hz = float(sampling_frequency_hz)
+        self.intermediate_frequency_hz = float(intermediate_frequency_hz)
+        self.output_is_real_if = bool(output_is_real_if)
+        self.satellites = satellites or []
+        self.channel = channel or ChannelModelConfig()
+        self.frontend = frontend or FullBandFrontendConfig()
+        self.frontend.validate(self.sampling_frequency_hz)
+        self.internal_sampling_frequency_hz = (
+            self.sampling_frequency_hz * self.frontend.internal_oversampling
+        )
+        for satellite in self.satellites:
+            satellite.validate(profile)
+        if self.frontend.fir_taps is None:
+            taps = firwin(
+                self.frontend.fir_tap_count,
+                self.frontend.frontend_one_sided_bandwidth_hz,
+                fs=self.internal_sampling_frequency_hz,
+                window=("kaiser", 8.0),
+            )
+        else:
+            taps = np.asarray(self.frontend.fir_taps, dtype=np.float64)
+        self.fir_taps = np.asarray(taps, dtype=np.float64)
+        self._filter_state = np.zeros(self.fir_taps.size - 1, dtype=np.complex128)
+        inner_channel = replace(
+            self.channel,
+            clip_amplitude=None,
+            quantization_bits=None,
+        )
+        self._inner = SyntheticSignalGenerator(
+            profile,
+            code_provider,
+            self.internal_sampling_frequency_hz,
+            intermediate_frequency_hz,
+            False,
+            self.satellites,
+            inner_channel,
+        )
+        self._output_sample_index = 0
+
+    @property
+    def group_delay_output_samples(self) -> float:
+        return (self.fir_taps.size - 1) / (2.0 * self.frontend.internal_oversampling)
+
+    @property
+    def sample_index(self) -> int:
+        return self._output_sample_index
+
+    def reset(self) -> None:
+        self._inner.reset()
+        self._filter_state.fill(0.0)
+        self._output_sample_index = 0
+
+    def generate(
+        self,
+        sample_count: int,
+    ) -> tuple[npt.NDArray[np.complex128] | npt.NDArray[np.float64], GenerationTruth]:
+        if sample_count < 0:
+            raise ValueError("sample_count must be nonnegative")
+        decimation = self.frontend.internal_oversampling
+        high_rate, inner_truth = self._inner.generate(sample_count * decimation)
+        filtered, self._filter_state = lfilter(
+            self.fir_taps,
+            np.asarray([1.0], dtype=np.float64),
+            np.asarray(high_rate, dtype=np.complex128),
+            zi=self._filter_state,
+        )
+        baseband = np.asarray(filtered[::decimation], dtype=np.complex128)
+        if baseband.size != sample_count:
+            raise RuntimeError("internal decimator produced an inconsistent sample count")
+        result: npt.NDArray[np.complex128] | npt.NDArray[np.float64]
+        if self.output_is_real_if:
+            result = (np.sqrt(2.0) * baseband.real).astype(np.float64)
+        else:
+            result = baseband.astype(np.complex128)
+        if self.channel.clip_amplitude is not None:
+            limit = self.channel.clip_amplitude
+            if np.iscomplexobj(result):
+                result = (
+                    np.clip(result.real, -limit, limit)
+                    + 1j * np.clip(result.imag, -limit, limit)
+                ).astype(np.complex128)
+            else:
+                result = np.clip(result, -limit, limit).astype(np.float64)
+        if self.channel.quantization_bits is not None:
+            result = quantize_normalized(result, self.channel.quantization_bits)
+        delay_samples = self.group_delay_output_samples
+        delay_chips = delay_samples * self.profile.code_rate_hz / self.sampling_frequency_hz
+        satellites = [
+            SatelliteTruth(
+                prn=truth.prn,
+                component=truth.component,
+                initial_code_delay_chips=truth.initial_code_delay_chips + delay_chips,
+                initial_code_delay_samples=(
+                    truth.initial_code_delay_chips
+                    * self.sampling_frequency_hz
+                    / self.profile.code_rate_hz
+                    + delay_samples
+                ),
+                initial_doppler_hz=truth.initial_doppler_hz,
+                doppler_rate_hz_s=truth.doppler_rate_hz_s,
+                initial_carrier_phase_rad=truth.initial_carrier_phase_rad,
+                amplitude=truth.amplitude,
+                cn0_db_hz=truth.cn0_db_hz,
+                initial_code_doppler_hz=truth.initial_code_doppler_hz,
+            )
+            for truth in inner_truth.satellites
+        ]
+        truth = GenerationTruth(
+            self.sampling_frequency_hz,
+            self.intermediate_frequency_hz,
+            self.output_is_real_if,
+            self._output_sample_index,
+            sample_count,
+            satellites,
+        )
+        self._output_sample_index += sample_count
+        return result, truth

src/galileo_rx/signals/galileo_e1.py

@@ -6,8 +6,9 @@ import numpy as np
 import numpy.typing as npt
 
 from galileo_rx.signal_profiles import SignalProfile
-from .boc import boc_subcarrier, sample_primary_code
+from .boc import sample_primary_code
 from .code_provider import CodeProvider
+from .e1_modulation import E1Modulation, e1_subcarrier_replica
 
 
 def e1_local_replica(
@@ -20,12 +21,19 @@ def e1_local_replica(
     initial_code_phase_chips: float = 0.0,
     boc_enabled: bool = True,
     code_rate_hz: float | None = None,
+    modulation: E1Modulation | str = E1Modulation.BOC11,
 ) -> npt.NDArray[np.float64]:
     primary = provider.primary_code(profile, component, prn)
     effective_code_rate_hz = profile.code_rate_hz if code_rate_hz is None else code_rate_hz
     code, _ = sample_primary_code(primary, sample_count, sampling_frequency_hz, effective_code_rate_hz, initial_code_phase_chips)
     if not boc_enabled:
         return code
-    rate_scale = effective_code_rate_hz / profile.code_rate_hz
+    sample_indices = np.arange(sample_count, dtype=np.float64)
-    subcarrier, _ = boc_subcarrier(sample_count, sampling_frequency_hz, profile.boc_subcarrier_rate_hz * rate_scale, initial_code_phase_chips % 1.0)
+    code_phase_chips = initial_code_phase_chips + sample_indices * effective_code_rate_hz / sampling_frequency_hz
+    subcarrier = e1_subcarrier_replica(
+        component,
+        modulation,
+        np.mod(code_phase_chips, 1.0),
+        np.mod(6.0 * code_phase_chips, 1.0),
+    )
     return code * subcarrier

src/galileo_rx/signals/signal_generator.py

@@ -11,6 +11,11 @@ import numpy.typing as npt
 from galileo_rx.signal_profiles import SignalProfile
 from galileo_rx.types import GenerationTruth, SatelliteTruth
 from .code_provider import CodeProvider
+from .e1_modulation import (
+    E1Modulation,
+    e1_transmitted_subcarrier_replica,
+    normalize_e1_modulation,
+)
 
 
 @dataclass(slots=True)
@@ -26,6 +31,8 @@ class SatelliteSignalConfig:
     navigation_bits: list[int] = field(default_factory=lambda: [1])
     navigation_bit_period_s: float = 0.004
     secondary_code_phase: int = 0
+    modulation: E1Modulation | str = E1Modulation.BOC11
+    code_doppler_hz: float | None = None
 
     def validate(self, profile: SignalProfile) -> None:
         profile.component(self.component)
@@ -33,6 +40,7 @@ class SatelliteSignalConfig:
             raise ValueError("PRN must be positive and amplitude nonnegative")
         if not self.navigation_bits or not set(self.navigation_bits) <= {-1, 1}:
             raise ValueError("navigation_bits must be a nonempty +/-1 list")
+        normalize_e1_modulation(self.modulation)
 
 
 @dataclass(slots=True)
@@ -99,19 +107,28 @@ class SyntheticSignalGenerator:
 
         for satellite in self.satellites:
             primary = self.code_provider.primary_code(self.profile, satellite.component, satellite.prn)
-            # Common line-of-sight dynamics scale carrier and spreading-code
+            # Common line-of-sight dynamics normally scale carrier and code by
-            # frequencies by the same fractional Doppler. Keeping this coupling
+            # the same fraction. An explicit code_doppler_hz overrides that
-            # makes carrier-aided code tracking physically self-consistent.
+            # coupling for clock-error and stress-test vectors.
+            code_doppler_hz = (
+                satellite.doppler_hz * self.profile.code_rate_hz / self.profile.carrier_frequency_hz
+                if satellite.code_doppler_hz is None
+                else satellite.code_doppler_hz
+            )
             code_phase_chips = (
                 signal_t_s * self.profile.code_rate_hz
-                + signal_t_s * satellite.doppler_hz * self.profile.code_rate_hz / self.profile.carrier_frequency_hz
+                + signal_t_s * code_doppler_hz
                 + 0.5 * signal_t_s**2 * satellite.doppler_rate_hz_s * self.profile.code_rate_hz / self.profile.carrier_frequency_hz
                 - satellite.code_delay_chips
             )
-            chip_indices = np.floor(code_phase_chips).astype(np.int64)
+            chip_indices = np.floor(code_phase_chips + 1e-12).astype(np.int64)
             spreading = self._sign_sequence(primary, chip_indices)
-            subcarrier_phase = code_phase_chips
+            subcarrier = e1_transmitted_subcarrier_replica(
-            subcarrier = np.where(np.mod(subcarrier_phase, 1.0) < 0.5, 1.0, -1.0)
+                satellite.component,
+                satellite.modulation,
+                np.mod(code_phase_chips, 1.0),
+                np.mod(6.0 * code_phase_chips, 1.0),
+            )
 
             component_spec = self.profile.component(satellite.component)
             if component_spec.channel_type == "data":
@@ -142,6 +159,7 @@ class SyntheticSignalGenerator:
                     initial_carrier_phase_rad=satellite.carrier_phase_rad,
                     amplitude=satellite.amplitude,
                     cn0_db_hz=satellite.cn0_db_hz,
+                    initial_code_doppler_hz=code_doppler_hz,
                 )
             )
 

src/galileo_rx/tracking/correlator.py

@@ -8,7 +8,9 @@ import numpy as np
 import numpy.typing as npt
 
 from galileo_rx.signal_profiles import SignalProfile
+from galileo_rx.signals.boc import SquareSubcarrierNco
 from galileo_rx.signals.code_provider import CodeProvider
+from galileo_rx.signals.e1_modulation import E1Modulation, e1_subcarrier_replica, normalize_e1_modulation
 from galileo_rx.types import CorrelatorOutputs
 from .nco import CarrierNco, CodeNco
 
@@ -23,22 +25,74 @@ class CorrelatorBank:
     code_nco: CodeNco
     early_late_spacing_chips: float
     very_early_late_spacing_chips: float
+    modulation: E1Modulation | str = E1Modulation.BOC11
     _code: npt.NDArray[np.int8] = field(init=False, repr=False)
+    _boc11_nco: SquareSubcarrierNco = field(init=False, repr=False)
+    _boc61_nco: SquareSubcarrierNco = field(init=False, repr=False)
 
     def __post_init__(self) -> None:
         self._code = self.provider.primary_code(self.profile, self.component, self.prn)
+        self.modulation = normalize_e1_modulation(self.modulation)
+        self._boc11_nco = SquareSubcarrierNco(
+            self.code_nco.sampling_frequency_hz,
+            self.code_nco.frequency_hz,
+            self.code_nco.phase_chips % 1.0,
+        )
+        self._boc61_nco = SquareSubcarrierNco(
+            self.code_nco.sampling_frequency_hz,
+            6.0 * self.code_nco.frequency_hz,
+            (6.0 * self.code_nco.phase_chips) % 1.0,
+        )
 
-    def _replica(self, phases_chips: np.ndarray, offset_chips: float) -> np.ndarray:
+    def _replica(
+        self,
+        phases_chips: npt.NDArray[np.float64],
+        boc11_phase_cycles: npt.NDArray[np.float64],
+        boc61_phase_cycles: npt.NDArray[np.float64],
+        offset_chips: float,
+    ) -> npt.NDArray[np.float64]:
         tap_phase = phases_chips + offset_chips
-        code = self._code[np.floor(tap_phase).astype(np.int64) % self._code.size]
+        code = self._code[np.floor(tap_phase + 1e-12).astype(np.int64) % self._code.size]
-        boc = np.where(np.mod(tap_phase, 1.0) < 0.5, 1.0, -1.0)
+        subcarrier = e1_subcarrier_replica(
-        return code * boc
+            self.component,
+            self.modulation,
+            boc11_phase_cycles + offset_chips,
+            boc61_phase_cycles + 6.0 * offset_chips,
+        )
+        return code.astype(np.float64) * subcarrier
+
+    def phase_vectors(
+        self,
+        sample_count: int,
+    ) -> tuple[
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+    ]:
+        """Advance and return independent carrier/code/BOC11/BOC61 phases."""
+        carrier_phase = self.carrier_nco.phases(sample_count)
+        code_phase = self.code_nco.phases(sample_count)
+        # The two subcarrier accumulators are distinct state elements, but
+        # their frequencies are code-aided so loop updates preserve the CBOC
+        # phase relationship without assuming integral samples/half-cycle.
+        self._boc11_nco.frequency_hz = self.code_nco.frequency_hz
+        self._boc61_nco.frequency_hz = 6.0 * self.code_nco.frequency_hz
+        boc11_phase = self._boc11_nco.phases(sample_count)
+        boc61_phase = self._boc61_nco.phases(sample_count)
+        return carrier_phase, code_phase, boc11_phase, boc61_phase
 
     def correlate(self, samples: npt.NDArray[np.generic], secondary_sign: int = 1) -> CorrelatorOutputs:
         array = np.asarray(samples, dtype=np.complex128)
-        carrier_phase = self.carrier_nco.phases(array.size)
+        carrier_phase, code_phase, boc11_phase, boc61_phase = self.phase_vectors(array.size)
-        code_phase = self.code_nco.phases(array.size)
+        return self.correlate_with_phases(
-        return self.correlate_with_phases(array, carrier_phase, code_phase, secondary_sign)
+            array,
+            carrier_phase,
+            code_phase,
+            secondary_sign,
+            boc11_phase,
+            boc61_phase,
+        )
 
     def correlate_with_phases(
         self,
@@ -46,6 +100,8 @@ class CorrelatorBank:
         carrier_phase_rad: npt.NDArray[np.float64],
         code_phase_chips: npt.NDArray[np.float64],
         secondary_sign: int = 1,
+        boc11_phase_cycles: npt.NDArray[np.float64] | None = None,
+        boc61_phase_cycles: npt.NDArray[np.float64] | None = None,
     ) -> CorrelatorOutputs:
         """Correlate using shared phases without advancing either NCO.
 
@@ -58,6 +114,16 @@ class CorrelatorBank:
         code_phase = np.asarray(code_phase_chips, dtype=np.float64)
         if carrier_phase.shape != array.shape or code_phase.shape != array.shape:
             raise ValueError("sample, carrier-phase, and code-phase vectors must have equal shapes")
+        if boc11_phase_cycles is None:
+            boc11_phase = np.mod(code_phase, 1.0)
+        else:
+            boc11_phase = np.asarray(boc11_phase_cycles, dtype=np.float64)
+        if boc61_phase_cycles is None:
+            boc61_phase = np.mod(6.0 * code_phase, 1.0)
+        else:
+            boc61_phase = np.asarray(boc61_phase_cycles, dtype=np.float64)
+        if boc11_phase.shape != array.shape or boc61_phase.shape != array.shape:
+            raise ValueError("sample and subcarrier-phase vectors must have equal shapes")
         wiped = array * np.exp(-1j * carrier_phase) * secondary_sign
         taps = {
             "very_early": -self.very_early_late_spacing_chips,
@@ -66,7 +132,10 @@ class CorrelatorBank:
             "late": self.early_late_spacing_chips,
             "very_late": self.very_early_late_spacing_chips,
         }
-        values = {name: complex(np.sum(wiped * self._replica(code_phase, offset))) for name, offset in taps.items()}
+        values = {
+            name: complex(np.sum(wiped * self._replica(code_phase, boc11_phase, boc61_phase, offset)))
+            for name, offset in taps.items()
+        }
         return CorrelatorOutputs(**values)
 
 

src/galileo_rx/tracking/pilot_aided_e1.py

@@ -11,6 +11,7 @@ import numpy.typing as npt
 from galileo_rx.config import TrackingConfig
 from galileo_rx.signal_profiles import SignalProfile
 from galileo_rx.signals.code_provider import CodeProvider
+from galileo_rx.signals.e1_modulation import E1Modulation
 from galileo_rx.types import AcquisitionResult, CorrelatorOutputs, TrackingMeasurement
 from .correlator import CorrelatorBank
 from .nco import CarrierNco, CodeNco
@@ -41,6 +42,7 @@ def synchronize_e1c_for_tracking(
     *,
     search_primary_epochs: int = 100,
     residual_frequency_step_hz: float = 0.5,
+    modulation: E1Modulation | str = E1Modulation.BOC11,
 ) -> E1CSecondarySynchronization:
     """Synchronize E1C secondary phase before closing the pilot loops."""
     if acquisition.component != "E1C":
@@ -69,7 +71,10 @@ def synchronize_e1c_for_tracking(
         (-acquisition.code_phase_chips + start * profile.code_rate_hz / sampling_frequency_hz)
         % component.primary_code_length_chips,
     )
-    bank = CorrelatorBank(profile, provider, "E1C", acquisition.prn, carrier, code, 0.25, 0.75)
+    bank = CorrelatorBank(
+        profile, provider, "E1C", acquisition.prn, carrier, code, 0.25, 0.75,
+        modulation,
+    )
     prompts = np.asarray([
         bank.correlate(
             np.asarray(samples)[start + index * primary_samples : start + (index + 1) * primary_samples]
@@ -130,6 +135,7 @@ class E1CPilotAidedE1TrackingChannel(TrackingChannel):
             self.code_nco,
             config.early_late_spacing_chips,
             config.very_early_late_spacing_chips,
+            config.modulation,
         )
         self.last_e1b_correlators = CorrelatorOutputs()
 
@@ -139,13 +145,12 @@ class E1CPilotAidedE1TrackingChannel(TrackingChannel):
         secondary_sign: int,
     ) -> CorrelatorOutputs:
         array = np.asarray(samples, dtype=np.complex128)
-        carrier_phase = self.carrier_nco.phases(array.size)
+        carrier_phase, code_phase, boc11_phase, boc61_phase = self.correlator.phase_vectors(array.size)
-        code_phase = self.code_nco.phases(array.size)
         pilot = self.correlator.correlate_with_phases(
-            array, carrier_phase, code_phase, secondary_sign
+            array, carrier_phase, code_phase, secondary_sign, boc11_phase, boc61_phase
         )
         self.last_e1b_correlators = self.e1b_correlator.correlate_with_phases(
-            array, carrier_phase, code_phase, 1
+            array, carrier_phase, code_phase, 1, boc11_phase, boc61_phase
         )
         return pilot
 

src/galileo_rx/tracking/tracking_channel.py

@@ -61,6 +61,7 @@ class TrackingChannel:
         self.correlator = CorrelatorBank(
             profile, provider, acquisition.component, acquisition.prn, self.carrier_nco, self.code_nco,
             config.early_late_spacing_chips, config.very_early_late_spacing_chips,
+            config.modulation,
         )
         self.pll_filter = ThirdOrderLoopFilter(config.pll_noise_bandwidth_hz, config.damping_ratio) if config.pll_order == 3 else SecondOrderLoopFilter(config.pll_noise_bandwidth_hz, config.damping_ratio)
         self.dll_filter = SecondOrderLoopFilter(config.dll_noise_bandwidth_hz, config.damping_ratio)

src/galileo_rx/types.py

@@ -104,6 +104,7 @@ class SatelliteTruth:
     initial_carrier_phase_rad: float
     amplitude: float
     cn0_db_hz: float | None
+    initial_code_doppler_hz: float = 0.0
 
 
 @dataclass(slots=True)

tests/integration/test_cboc_end_to_end.py

@@ -0,0 +1,160 @@
+"""Full-band CBOC acquisition/tracking evidence at 32.736 Msps."""
+
+from __future__ import annotations
+
+import numpy as np
+import pytest
+
+from galileo_rx.acquisition.acquisition_manager import AcquisitionManager
+from galileo_rx.config import AcquisitionConfig, TrackingConfig
+from galileo_rx.signal_profiles import galileo_e1_profile
+from galileo_rx.signals.code_provider import SyntheticCodeProvider
+from galileo_rx.signals.e1_modulation import E1Modulation
+from galileo_rx.signals.fullband_e1_generator import FullBandE1SignalGenerator
+from galileo_rx.signals.signal_generator import ChannelModelConfig, SatelliteSignalConfig
+from galileo_rx.tracking.pilot_aided_e1 import synchronize_e1c_for_tracking
+from galileo_rx.tracking.tracking_channel import TrackingChannel
+
+
+FS_HZ = 32.736e6
+IF_HZ = 2.25e6
+DOPPLER_HZ = 1250.0
+DELAY_CHIPS = 80.25
+
+
+def _run_case(transmit_modulation: E1Modulation, receiver_modulation: E1Modulation):
+    profile = galileo_e1_profile()
+    provider = SyntheticCodeProvider()
+    generator = FullBandE1SignalGenerator(
+        profile,
+        provider,
+        FS_HZ,
+        IF_HZ,
+        satellites=[
+            SatelliteSignalConfig(
+                1,
+                "E1C",
+                code_delay_chips=DELAY_CHIPS,
+                doppler_hz=DOPPLER_HZ,
+                carrier_phase_rad=0.3,
+                cn0_db_hz=55.0,
+                modulation=transmit_modulation,
+            )
+        ],
+        channel=ChannelModelConfig(seed=2026),
+    )
+    samples, truth = generator.generate(round(0.16 * FS_HZ))
+    acquisition_config = AcquisitionConfig(
+        modulation=receiver_modulation,
+        doppler_min_hz=1000.0,
+        doppler_max_hz=1500.0,
+        doppler_step_hz=250.0,
+        coherent_integration_ms=4.0,
+        noncoherent_accumulations=2,
+        detection_threshold=2.0,
+        zero_padding_mode="none",
+        parabolic_interpolation=False,
+    )
+    acquisition, _ = AcquisitionManager(
+        profile, provider, FS_HZ, acquisition_config
+    ).acquire_one(samples, "E1C", 1, IF_HZ)
+    synchronization = synchronize_e1c_for_tracking(
+        samples,
+        profile,
+        provider,
+        FS_HZ,
+        acquisition,
+        round(0.008 * FS_HZ),
+        search_primary_epochs=30,
+        residual_frequency_step_hz=1.0,
+        modulation=receiver_modulation,
+    )
+    tracking = TrackingChannel(
+        profile,
+        provider,
+        FS_HZ,
+        TrackingConfig(
+            modulation=receiver_modulation,
+            pull_in_duration_ms=20.0,
+            loss_of_lock_epochs=20,
+        ),
+        synchronization.acquisition,
+        synchronization.tracking_start_sample,
+        synchronization.sync.phase,
+    )
+    measurements = tracking.process(samples[synchronization.tracking_start_sample :])
+    return acquisition, synchronization.sync, measurements, truth
+
+
+@pytest.mark.parametrize(
+    ("transmit_modulation", "receiver_modulation"),
+    [
+        (E1Modulation.BOC11, E1Modulation.BOC11),
+        (E1Modulation.CBOC, E1Modulation.BOC11),
+        (E1Modulation.CBOC, E1Modulation.CBOC),
+    ],
+)
+def test_fullband_modulation_matrix_acquires_and_tracks(
+    transmit_modulation: E1Modulation,
+    receiver_modulation: E1Modulation,
+) -> None:
+    acquisition, secondary, measurements, truth = _run_case(
+        transmit_modulation, receiver_modulation
+    )
+    expected = truth.satellites[0]
+    assert acquisition.detected
+    assert acquisition.raw_doppler_hz == DOPPLER_HZ
+    assert abs(acquisition.code_phase_chips - expected.initial_code_delay_chips) <= 1.0 / 32.0
+    assert secondary.normalized_correlation > 0.98
+    assert secondary.sign_errors == 0
+    assert len(measurements) >= 35
+    assert measurements[-1].carrier_lock
+    assert measurements[-1].code_lock
+    assert not any(item.cycle_slip for item in measurements)
+    assert not any(item.sample_discontinuity for item in measurements)
+    tail = measurements[-10:]
+    assert np.sqrt(np.mean([item.pll_error_rad**2 for item in tail])) < 0.12
+    assert np.sqrt(np.mean([item.dll_error_chips**2 for item in tail])) < 0.12
+
+
+@pytest.mark.parametrize("intermediate_frequency_hz", [0.0, 2.25e6])
+def test_cboc_pcps_carrier_wipeoff_at_zero_and_nonzero_if(
+    intermediate_frequency_hz: float,
+) -> None:
+    profile = galileo_e1_profile()
+    provider = SyntheticCodeProvider()
+    samples, _ = FullBandE1SignalGenerator(
+        profile,
+        provider,
+        FS_HZ,
+        intermediate_frequency_hz,
+        satellites=[
+            SatelliteSignalConfig(
+                5,
+                "E1B",
+                code_delay_chips=19.5,
+                doppler_hz=-750.0,
+                modulation=E1Modulation.CBOC,
+            )
+        ],
+        channel=ChannelModelConfig(add_awgn=False),
+    ).generate(round(0.008 * FS_HZ))
+    result, _ = AcquisitionManager(
+        profile,
+        provider,
+        FS_HZ,
+        AcquisitionConfig(
+            modulation=E1Modulation.CBOC,
+            doppler_min_hz=-1000.0,
+            doppler_max_hz=-500.0,
+            doppler_step_hz=250.0,
+            coherent_integration_ms=4.0,
+            noncoherent_accumulations=2,
+            detection_threshold=2.0,
+            zero_padding_mode="none",
+            parabolic_interpolation=False,
+        ),
+    ).acquire_one(samples, "E1B", 5, intermediate_frequency_hz)
+    assert result.detected
+    assert result.raw_doppler_hz == -750.0
+    assert abs(result.code_phase_chips - 20.5) <= 1.0 / 32.0

tests/unit/test_e1_cboc.py

@@ -0,0 +1,108 @@
+"""Unit evidence for phase-continuous Galileo E1 CBOC replicas."""
+
+from __future__ import annotations
+
+import numpy as np
+
+from galileo_rx.signals.boc import SquareSubcarrierNco, boc_subcarrier
+from galileo_rx.signals.e1_modulation import (
+    CBOC_ALPHA,
+    CBOC_BETA,
+    E1Modulation,
+    e1_subcarrier_replica,
+    e1_transmitted_subcarrier_replica,
+)
+
+
+def _phases(sample_count: int, sampling_frequency_hz: float) -> np.ndarray:
+    return np.arange(sample_count, dtype=np.float64) * 1.023e6 / sampling_frequency_hz
+
+
+def test_boc11_subcarrier_sequence() -> None:
+    wave, ending = boc_subcarrier(8, 8.0, 1.0)
+    np.testing.assert_array_equal(wave, [1.0, 1.0, 1.0, 1.0, -1.0, -1.0, -1.0, -1.0])
+    assert ending == 0.0
+
+
+def test_boc61_subcarrier_sequence() -> None:
+    wave, ending = boc_subcarrier(24, 24.0, 6.0)
+    np.testing.assert_array_equal(wave, np.tile([1.0, 1.0, -1.0, -1.0], 6))
+    assert ending == 0.0
+
+
+def test_subcarrier_phase_continuity_across_arbitrary_chunks() -> None:
+    fs = 31.25e6  # deliberately nonintegral samples per BOC(6,1) sign interval
+    total = 10_003
+    reference = SquareSubcarrierNco(fs, 6.138e6, 0.137).samples(total)
+    chunked_nco = SquareSubcarrierNco(fs, 6.138e6, 0.137)
+    chunks = [1, 7, 31, 2, 997, 4093, 3, 4869]
+    chunked = np.concatenate([chunked_nco.samples(count) for count in chunks])
+    np.testing.assert_array_equal(chunked, reference)
+
+
+def test_cboc_power_normalization_and_component_sign() -> None:
+    phase = _phases(4092 * 32, 32.736e6)
+    sc11 = e1_subcarrier_replica("E1B", E1Modulation.BOC11, phase)
+    sc61 = np.where((np.floor(2.0 * np.mod(6.0 * phase, 1.0) + 1e-12).astype(int) & 1) == 0, 1.0, -1.0)
+    e1b = e1_subcarrier_replica("E1B", E1Modulation.CBOC, phase, 6.0 * phase)
+    e1c = e1_subcarrier_replica("E1C", E1Modulation.CBOC, phase, 6.0 * phase)
+    assert abs(float(np.mean(e1b**2)) - 1.0) < 1e-12
+    assert abs(float(np.mean(e1c**2)) - 1.0) < 1e-12
+    np.testing.assert_allclose((e1b + e1c) / 2.0, CBOC_ALPHA * sc11, atol=1e-15)
+    np.testing.assert_allclose((e1b - e1c) / 2.0, CBOC_BETA * sc61, atol=1e-15)
+    transmitted_e1b = e1_transmitted_subcarrier_replica(
+        "E1B", E1Modulation.CBOC, phase, 6.0 * phase
+    )
+    transmitted_e1c = e1_transmitted_subcarrier_replica(
+        "E1C", E1Modulation.CBOC, phase, 6.0 * phase
+    )
+    # Equation (12): low-rate terms oppose, high-rate terms have equal sign.
+    np.testing.assert_allclose((transmitted_e1b - transmitted_e1c) / 2.0, CBOC_ALPHA * sc11, atol=1e-15)
+    np.testing.assert_allclose((transmitted_e1b + transmitted_e1c) / 2.0, CBOC_BETA * sc61, atol=1e-15)
+
+
+def test_cboc_spectrum_contains_the_boc61_lobe() -> None:
+    fs = 32.736e6
+    phase = _phases(4092 * 32, fs)
+    boc11 = e1_subcarrier_replica("E1B", E1Modulation.BOC11, phase)
+    cboc = e1_subcarrier_replica("E1B", E1Modulation.CBOC, phase, 6.0 * phase)
+    frequencies = np.fft.rfftfreq(phase.size, 1.0 / fs)
+    boc_psd = np.abs(np.fft.rfft(boc11)) ** 2
+    cboc_psd = np.abs(np.fft.rfft(cboc)) ** 2
+    high_lobe = (frequencies > 5.8e6) & (frequencies < 6.5e6)
+    fundamental = (frequencies > 0.8e6) & (frequencies < 1.25e6)
+    assert cboc_psd[high_lobe].sum() > 1_000.0 * boc_psd[high_lobe].sum()
+    assert cboc_psd[fundamental].sum() > cboc_psd[high_lobe].sum()
+
+
+def test_cboc_autocorrelation_side_structure_and_epl_symmetry() -> None:
+    fs = 32.736e6
+    samples_per_chip = 32
+    phase = _phases(4092 * samples_per_chip, fs)
+    cboc = e1_subcarrier_replica("E1B", E1Modulation.CBOC, phase, 6.0 * phase)
+
+    def circular_correlation(offset_samples: int) -> float:
+        return float(np.mean(cboc * np.roll(cboc, offset_samples)))
+
+    assert circular_correlation(0) > 0.999999
+    assert circular_correlation(samples_per_chip // 2) < -0.80
+    for offset in (2, 4, 6, 8, 10, 12):
+        assert abs(circular_correlation(offset) - circular_correlation(-offset)) < 2e-4
+    # E and L at +/-0.25 chip see equal magnitude at the correct prompt.
+    assert abs(abs(circular_correlation(8)) - abs(circular_correlation(-8))) < 2e-4
+
+
+def test_cboc_sample_rate_independence() -> None:
+    powers = []
+    quarter_chip_correlations = []
+    for fs in (32.736e6, 30.0e6, 27.5e6):
+        count = int(round(4092 * fs / 1.023e6))
+        phase = _phases(count, fs)
+        cboc = e1_subcarrier_replica("E1C", E1Modulation.CBOC, phase, 6.0 * phase)
+        powers.append(float(np.mean(cboc**2)))
+        quarter_late = e1_subcarrier_replica(
+            "E1C", E1Modulation.CBOC, phase + 0.25, 6.0 * (phase + 0.25)
+        )
+        quarter_chip_correlations.append(float(np.mean(cboc * quarter_late)))
+    assert max(abs(power - 1.0) for power in powers) < 2e-3
+    assert np.ptp(quarter_chip_correlations) < 0.04

tests/unit/test_fullband_e1_generator.py

@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+import numpy as np
+
+from galileo_rx.signal_profiles import galileo_e1_profile
+from galileo_rx.signals.code_provider import SyntheticCodeProvider
+from galileo_rx.signals.e1_modulation import E1Modulation
+from galileo_rx.signals.fullband_e1_generator import FullBandE1SignalGenerator
+from galileo_rx.signals.signal_generator import ChannelModelConfig, SatelliteSignalConfig
+
+
+def _generator() -> FullBandE1SignalGenerator:
+    return FullBandE1SignalGenerator(
+        galileo_e1_profile(),
+        SyntheticCodeProvider(),
+        32.736e6,
+        2.25e6,
+        satellites=[
+            SatelliteSignalConfig(
+                3,
+                "E1C",
+                code_delay_chips=7.25,
+                doppler_hz=1375.0,
+                modulation=E1Modulation.CBOC,
+            )
+        ],
+        channel=ChannelModelConfig(add_awgn=False),
+    )
+
+
+def test_fullband_generator_is_streaming_and_double_precision() -> None:
+    one_shot, truth = _generator().generate(4099)
+    chunked_generator = _generator()
+    chunked = np.concatenate([chunked_generator.generate(count)[0] for count in (1, 17, 1000, 3, 3078)])
+    assert one_shot.dtype == np.complex128
+    np.testing.assert_allclose(chunked, one_shot, atol=2e-13, rtol=0.0)
+    assert truth.satellites[0].initial_code_delay_samples == 7.25 * 32.0 + 32.0
+
+
+def test_fullband_generator_supports_real_if_quantization() -> None:
+    generator = FullBandE1SignalGenerator(
+        galileo_e1_profile(),
+        SyntheticCodeProvider(),
+        32.736e6,
+        4.092e6,
+        True,
+        [SatelliteSignalConfig(1, "E1B", modulation=E1Modulation.CBOC)],
+        ChannelModelConfig(add_awgn=False, quantization_bits=8),
+    )
+    samples, _ = generator.generate(2048)
+    assert samples.dtype == np.float64
+    assert np.max(samples) <= 1.0 - 1.0 / 128.0
+    np.testing.assert_allclose(samples * 128.0, np.round(samples * 128.0), atol=1e-12)
+
+
+def test_fullband_generator_exposes_independent_code_doppler_truth() -> None:
+    generator = FullBandE1SignalGenerator(
+        galileo_e1_profile(),
+        SyntheticCodeProvider(),
+        satellites=[
+            SatelliteSignalConfig(
+                1,
+                "E1C",
+                doppler_hz=1000.0,
+                code_doppler_hz=0.75,
+                modulation=E1Modulation.CBOC,
+            )
+        ],
+        channel=ChannelModelConfig(add_awgn=False),
+    )
+    _, truth = generator.generate(128)
+    assert truth.satellites[0].initial_code_doppler_hz == 0.75

tools/run_cboc_validation.py

@@ -0,0 +1,235 @@
+#!/usr/bin/env python3
+"""Run and report the 32.736 Msps BOC11/CBOC receiver matrix."""
+
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+import time
+
+import numpy as np
+
+from galileo_rx.acquisition.acquisition_manager import AcquisitionManager
+from galileo_rx.config import AcquisitionConfig, TrackingConfig
+from galileo_rx.signal_profiles import galileo_e1_profile
+from galileo_rx.signals.code_provider import SyntheticCodeProvider
+from galileo_rx.signals.e1_modulation import E1Modulation
+from galileo_rx.signals.fullband_e1_generator import FullBandE1SignalGenerator
+from galileo_rx.signals.signal_generator import ChannelModelConfig, SatelliteSignalConfig
+from galileo_rx.tracking.pilot_aided_e1 import synchronize_e1c_for_tracking
+from galileo_rx.tracking.tracking_channel import TrackingChannel
+
+
+FS_HZ = 32.736e6
+IF_HZ = 2.25e6
+DOPPLER_HZ = 1250.0
+DELAY_CHIPS = 80.25
+PRN = 1
+
+
+def _rms(values: list[float]) -> float:
+    return float(np.sqrt(np.mean(np.square(np.asarray(values, dtype=np.float64)))))
+
+
+def _longest_true(values: list[bool]) -> int:
+    longest = current = 0
+    for value in values:
+        current = current + 1 if value else 0
+        longest = max(longest, current)
+    return longest
+
+
+def run_case(transmit: E1Modulation, receive: E1Modulation, duration_s: float) -> dict[str, object]:
+    profile = galileo_e1_profile()
+    provider = SyntheticCodeProvider()
+    started = time.perf_counter()
+    generator = FullBandE1SignalGenerator(
+        profile,
+        provider,
+        FS_HZ,
+        IF_HZ,
+        satellites=[
+            SatelliteSignalConfig(
+                PRN,
+                "E1C",
+                code_delay_chips=DELAY_CHIPS,
+                doppler_hz=DOPPLER_HZ,
+                carrier_phase_rad=0.3,
+                cn0_db_hz=55.0,
+                modulation=transmit,
+            )
+        ],
+        channel=ChannelModelConfig(seed=2026),
+    )
+    samples, truth = generator.generate(round(duration_s * FS_HZ))
+    acquisition_config = AcquisitionConfig(
+        modulation=receive,
+        doppler_min_hz=1000.0,
+        doppler_max_hz=1500.0,
+        doppler_step_hz=250.0,
+        coherent_integration_ms=4.0,
+        noncoherent_accumulations=2,
+        detection_threshold=2.0,
+        zero_padding_mode="none",
+        parabolic_interpolation=False,
+    )
+    acquisition, _ = AcquisitionManager(
+        profile, provider, FS_HZ, acquisition_config
+    ).acquire_one(samples, "E1C", PRN, IF_HZ)
+    synchronization = synchronize_e1c_for_tracking(
+        samples,
+        profile,
+        provider,
+        FS_HZ,
+        acquisition,
+        round(0.008 * FS_HZ),
+        search_primary_epochs=min(30, int(duration_s / 0.004) - 3),
+        residual_frequency_step_hz=1.0,
+        modulation=receive,
+    )
+    channel = TrackingChannel(
+        profile,
+        provider,
+        FS_HZ,
+        TrackingConfig(
+            modulation=receive,
+            pull_in_duration_ms=20.0,
+            loss_of_lock_epochs=20,
+        ),
+        synchronization.acquisition,
+        synchronization.tracking_start_sample,
+        synchronization.sync.phase,
+    )
+    measurements = channel.process(samples[synchronization.tracking_start_sample :])
+    tail = measurements[-min(10, len(measurements)) :]
+    effective_code_rate_hz = profile.code_rate_hz * (
+        1.0 + DOPPLER_HZ / profile.carrier_frequency_hz
+    )
+    truth_delay_chips = truth.satellites[0].initial_code_delay_chips
+    phase_errors_chips = []
+    for measurement in tail:
+        expected_phase = (
+            measurement.end_sample_timestamp / FS_HZ * effective_code_rate_hz
+            - truth_delay_chips
+        ) % profile.component("E1C").primary_code_length_chips
+        phase_errors_chips.append(
+            float(
+                (
+                    measurement.code_phase_chips
+                    - expected_phase
+                    + profile.component("E1C").primary_code_length_chips / 2.0
+                )
+                % profile.component("E1C").primary_code_length_chips
+                - profile.component("E1C").primary_code_length_chips / 2.0
+            )
+        )
+    joint_lock = [item.carrier_lock and item.code_lock for item in measurements]
+    cn0_values = [item.cn0_db_hz for item in tail if item.cn0_db_hz is not None]
+    return {
+        "case": f"generated_{transmit.value}__receiver_{receive.value}",
+        "transmit_modulation": transmit.value,
+        "receiver_modulation": receive.value,
+        "sample_format": "complex128",
+        "sampling_frequency_hz": FS_HZ,
+        "internal_sampling_frequency_hz": generator.internal_sampling_frequency_hz,
+        "intermediate_frequency_hz": IF_HZ,
+        "frontend_one_sided_bandwidth_hz": generator.frontend.frontend_one_sided_bandwidth_hz,
+        "frontend_fir_taps": int(generator.fir_taps.size),
+        "filter_group_delay_samples": generator.group_delay_output_samples,
+        "acquisition_detected": acquisition.detected,
+        "acquisition_peak_metric": acquisition.detection_metric,
+        "acquisition_peak_power": acquisition.peak_power,
+        "estimated_code_delay_chips": acquisition.code_phase_chips,
+        "truth_code_delay_chips_including_filter": truth_delay_chips,
+        "code_delay_error_chips": acquisition.code_phase_chips - truth_delay_chips,
+        "estimated_carrier_frequency_hz": acquisition.carrier_frequency_hz,
+        "estimated_doppler_hz": acquisition.doppler_hz,
+        "doppler_error_hz": acquisition.doppler_hz - DOPPLER_HZ,
+        "secondary_code_phase": synchronization.sync.phase,
+        "secondary_code_correlation": synchronization.sync.normalized_correlation,
+        "secondary_code_sign_errors": synchronization.sync.sign_errors,
+        "tracking_epochs": len(measurements),
+        "tracking_duration_s": len(measurements) * 0.004,
+        "longest_joint_lock_duration_s": _longest_true(joint_lock) * 0.004,
+        "final_carrier_lock": measurements[-1].carrier_lock,
+        "final_code_lock": measurements[-1].code_lock,
+        "pll_error_rms_rad": _rms([item.pll_error_rad for item in tail]),
+        "dll_error_rms_chips": _rms([item.dll_error_chips for item in tail]),
+        "code_tracking_bias_chips": float(np.mean(phase_errors_chips)),
+        "code_tracking_error_rms_chips": _rms(phase_errors_chips),
+        "median_cn0_estimate_db_hz": float(np.median(cn0_values)) if cn0_values else None,
+        "cycle_slip_count": sum(item.cycle_slip for item in measurements),
+        "sample_discontinuity_count": sum(item.sample_discontinuity for item in measurements),
+        "side_peak_suspected_epochs": sum(item.side_peak_suspected for item in measurements),
+        "tail_smoothed_code_lock_metric_median": float(
+            np.median([item.smoothed_code_lock_metric for item in tail])
+        ),
+        "tail_boc_main_peak_fraction_minimum": float(
+            min(item.boc_main_peak_fraction for item in tail)
+        ),
+        "tail_boc_side_peak_metric_maximum": float(
+            max(item.boc_side_peak_metric for item in tail)
+        ),
+        "e1b_page_decode_count": None,
+        "e1b_navigation_data_enabled": False,
+        "processing_time_s": time.perf_counter() - started,
+    }
+
+
+def markdown_report(report: dict[str, object]) -> str:
+    rows = []
+    for case in report["cases"]:  # type: ignore[index]
+        rows.append(
+            "| {case} | {acquisition_peak_metric:.3f} | {estimated_code_delay_chips:.6f} | "
+            "{estimated_doppler_hz:.1f} | {longest_joint_lock_duration_s:.3f} | "
+            "{pll_error_rms_rad:.6f} | {dll_error_rms_chips:.6f} | "
+            "{code_tracking_bias_chips:.6f} | {median_cn0_estimate_db_hz:.3f} | "
+            "{secondary_code_correlation:.6f} |".format(**case)
+        )
+    return "\n".join(
+        [
+            "# Galileo E1 full-band CBOC validation",
+            "",
+            "Generated at 65.472 Msps, passed through a 129-tap Kaiser FIR, and decimated to "
+            "32.736 Msps. All receiver arrays use float64/complex128.",
+            "",
+            "| Case | Acquisition metric | Code delay (chips) | Doppler (Hz) | Longest lock (s) | PLL RMS (rad) | DLL RMS (chips) | Code bias (chips) | C/N0 estimate | E1C secondary corr. |",
+            "| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |",
+            *rows,
+            "",
+            "E1B navigation data was not enabled in this focused E1C-pilot matrix; page counts are therefore null, not zero-result decoder failures. The independent SignalSim regression remains the E1B BOC(1,1) I/NAV proof.",
+        ]
+    ) + "\n"
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--output-dir", type=Path, default=Path("reports"))
+    parser.add_argument("--duration-s", type=float, default=0.30)
+    arguments = parser.parse_args()
+    if arguments.duration_s < 0.24:
+        raise SystemExit("duration must be at least 0.24 s for lock and C/N0 settling")
+    cases = [
+        run_case(E1Modulation.BOC11, E1Modulation.BOC11, arguments.duration_s),
+        run_case(E1Modulation.CBOC, E1Modulation.BOC11, arguments.duration_s),
+        run_case(E1Modulation.CBOC, E1Modulation.CBOC, arguments.duration_s),
+    ]
+    report: dict[str, object] = {
+        "generator": "independent band-limited Python Galileo E1 generator",
+        "truth_usage": "post-receiver error measurement only",
+        "cases": cases,
+    }
+    arguments.output_dir.mkdir(parents=True, exist_ok=True)
+    (arguments.output_dir / "cboc_validation_report.json").write_text(
+        json.dumps(report, indent=2) + "\n", encoding="utf-8"
+    )
+    (arguments.output_dir / "cboc_validation_report.md").write_text(
+        markdown_report(report), encoding="utf-8"
+    )
+    print(json.dumps(report, indent=2))
+    return 0 if all(case["acquisition_detected"] and case["final_code_lock"] for case in cases) else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())