26 lines
1.2 KiB
Python
26 lines
1.2 KiB
Python
import pytest
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@pytest.mark.signalsim
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def test_signalsim_pcps_detects_e1b_and_e1c(signalsim_validation_result) -> None:
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report, _, output = signalsim_validation_result
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for component in ("E1B", "E1C"):
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result = report["acquisition"][component]
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assert result["detected"]
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assert result["prn"] == 1
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assert abs(result["raw_doppler_error_hz"]) <= 250.0
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assert result["detection_metric"] >= 2.5
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assert result["overflow_count"] == 0
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assert (output / f"acquisition_map_{component.lower()}.png").is_file()
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# SignalSim does not export code-delay truth, but the independently acquired
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# E1B and E1C components share the same propagation delay.
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delta = abs(report["acquisition"]["E1B"]["code_phase_samples"] - report["acquisition"]["E1C"]["code_phase_samples"])
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assert delta < 1.0
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fixed = report["fixed_point_acquisition"]
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assert fixed["doppler_bin_agreement"]
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assert fixed["code_phase_agreement"]
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assert fixed["acquisition_decision_agreement"]
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assert fixed["overflow_count"] == 0
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assert fixed["normalized_rms_error"] < 0.005
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assert report["rtl_vector_manifest"]["sample_count"] == 5 * 32736
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