Initial Galileo receiver and SignalSim integration

examples/generate_e1_signal.py

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+"""Generate a deterministic, synthetic (not ICD-code) E1C recording."""
+
+from galileo_rx.io.sample_writer import write_samples
+from galileo_rx.signal_profiles import galileo_e1_profile
+from galileo_rx.signals.code_provider import SyntheticCodeProvider
+from galileo_rx.signals.signal_generator import ChannelModelConfig, SatelliteSignalConfig, SyntheticSignalGenerator
+
+fs = 4.092e6
+generator = SyntheticSignalGenerator(
+    galileo_e1_profile(), SyntheticCodeProvider(), fs,
+    satellites=[SatelliteSignalConfig(1, "E1C", code_delay_chips=120.0, doppler_hz=1250.0, cn0_db_hz=48.0)],
+    channel=ChannelModelConfig(seed=2026),
+)
+samples, truth = generator.generate(int(0.1 * fs))
+write_samples("e1_synthetic.c128", samples)
+print(truth)

examples/run_acquisition.py

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+"""Generate and acquire one synthetic E1C satellite."""
+
+from galileo_rx.acquisition.acquisition_manager import AcquisitionManager
+from galileo_rx.config import AcquisitionConfig
+from galileo_rx.signal_profiles import galileo_e1_profile
+from galileo_rx.signals.code_provider import SyntheticCodeProvider
+from galileo_rx.signals.signal_generator import ChannelModelConfig, SatelliteSignalConfig, SyntheticSignalGenerator
+
+fs = 4.092e6
+profile, provider = galileo_e1_profile(), SyntheticCodeProvider()
+generator = SyntheticSignalGenerator(profile, provider, fs, satellites=[SatelliteSignalConfig(1, code_delay_chips=120, doppler_hz=1250, cn0_db_hz=48)], channel=ChannelModelConfig(seed=11))
+samples, _ = generator.generate(int(0.008 * fs))
+config = AcquisitionConfig(doppler_min_hz=-2500, doppler_max_hz=2500, noncoherent_accumulations=2, zero_padding_mode="none")
+result, _ = AcquisitionManager(profile, provider, fs, config).acquire_one(samples, "E1C", 1)
+print(result)
+

examples/run_complete_receiver.py

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+"""Complete synthetic generate/acquire/track flow."""
+
+from run_tracking import measurements, result
+
+print(f"detected={result.detected}, Doppler={result.doppler_hz:.1f} Hz, epochs={len(measurements)}")

examples/run_tracking.py

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+"""Acquire then track a synthetic pilot."""
+
+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.signal_generator import ChannelModelConfig, SatelliteSignalConfig, SyntheticSignalGenerator
+from galileo_rx.tracking.tracking_channel import TrackingChannel
+
+fs = 4.092e6
+profile, provider = galileo_e1_profile(), SyntheticCodeProvider()
+generator = SyntheticSignalGenerator(profile, provider, fs, satellites=[SatelliteSignalConfig(1, code_delay_chips=40, doppler_hz=750, cn0_db_hz=50)], channel=ChannelModelConfig(seed=5))
+samples, _ = generator.generate(int(0.12 * fs))
+acq_config = AcquisitionConfig(doppler_min_hz=-2000, doppler_max_hz=2000, noncoherent_accumulations=2, zero_padding_mode="none")
+result, _ = AcquisitionManager(profile, provider, fs, acq_config).acquire_one(samples, "E1C", 1)
+channel = TrackingChannel(profile, provider, fs, TrackingConfig(secondary_code_mode="wipeoff", pull_in_duration_ms=20), result)
+measurements = channel.process(samples)
+print(measurements[-1])
+