Lab057: diagnose Lab054 symbol synchronization failures offline
This commit is contained in:
LittleSam129
773
experiments/lab057_symbol_diagnosis.py
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773
experiments/lab057_symbol_diagnosis.py
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"""Lab057: изолированная диагностика сохранённых символов, без аппаратных команд."""
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from __future__ import annotations
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import argparse
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import csv
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from collections import Counter
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from dataclasses import asdict, dataclass
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from functools import lru_cache
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import hashlib
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import json
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from pathlib import Path
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import sys
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from types import SimpleNamespace
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import numpy as np
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from scipy.signal import oaconvolve
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if __package__ in (None, ""):
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sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
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from experiments import lab053_packet_processing as packet
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from experiments import lab053_streaming_receiver as streaming
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from experiments import lab054_hardware_control as historical
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from experiments import lab055_energy_audit as energy
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physical = packet.physical
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radio = packet.previous.iq.radio
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ROOT = Path(__file__).resolve().parents[1]
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OUTPUT = ROOT / "data/processed/lab057"
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TRAIN = np.arange(32, 608)
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VALIDATION = np.arange(672, 1248)
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VARIANTS = ("S0", "D0", "D1", "D2", "D3")
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FS = 8_000_000
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PROBE_SYMBOLS = 1424
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PREAMBLE = physical.lab044.preamble_bits()
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EXPECTED = radio.bpsk_modulate(PREAMBLE)
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def plain(value):
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"""JSON без потери комплексных статистик."""
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if isinstance(value, dict):
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return {str(key): plain(item) for key, item in value.items()}
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if isinstance(value, (list, tuple)):
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return [plain(item) for item in value]
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if isinstance(value, np.ndarray):
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return plain(value.tolist())
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if isinstance(value, complex):
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return {"real": value.real, "imag": value.imag}
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if isinstance(value, np.generic):
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return plain(value.item())
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return value
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def save(name: str, value: dict | list) -> None:
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"""Писать исключительно новый результат Lab057."""
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OUTPUT.mkdir(parents=True, exist_ok=True)
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(OUTPUT / name).write_text(json.dumps(plain(value), ensure_ascii=False, indent=2), encoding="utf-8")
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class ObservedProcessor(packet.PacketProcessor):
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"""Штатный обработчик с наблюдением первого probe; вычисления не подменяются."""
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def __init__(self):
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super().__init__(viterbi=physical.conv.viterbi_decode_soft)
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self.probes = []
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def extract(self, samples, frame_start, symbol_count):
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result = super().extract(samples, frame_start, symbol_count)
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self.probes.append(result)
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return result
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def decode(self, samples, candidate, number=1):
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self.probes = []
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outcome, row = super().decode(samples, candidate, number)
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probe = self.probes[0] if self.probes else None
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row["probe"] = None if probe is None else {
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"timing": probe.timing_offset_samples, "carrier": probe.carrier,
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"soft": probe.normalized_real.tolist(), "passed": probe.passed,
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}
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row["fec_started"] = outcome.fec_attempted
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row["crc_result"] = outcome.crc
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row["header_accepted"] = outcome.phy_header_pass
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row["extract_calls"] = len(self.probes)
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return outcome, row
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def reproduce_baseline() -> dict:
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"""Полный штатный поток получает только RX, без начала, числа кадров и TX."""
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rows = []
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def observe(row, outcome):
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rows.append(dict(row, candidate_id=len(rows) + 1,
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reason=outcome.reason, accepted=outcome.accepted))
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receiver = streaming.StreamingReceiver(processor=ObservedProcessor(), packet_observer=observe)
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received = []
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with (ROOT / "data/raw/lab054/rx_stream.cs8").open("rb") as source:
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while block := source.read(2 * 65536):
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values = np.frombuffer(block, np.int8)
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samples = (values[::2].astype(np.float32) + 1j * values[1::2]).astype(np.complex64)
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received.extend(receiver.push_iq_block(samples))
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received.extend(receiver.finish())
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expected = energy.read_json(ROOT / "data/processed/lab054/independent_result.json")
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comparisons = [(row["absolute_refined"], row["reason"]) for row in rows]
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old = [(row["start"], row["reason"]) for row in expected["rows"]]
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result = {"independent_stream": True, "tx_truth_used": False, "rf_tx": 0,
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"packets": len(received), "candidates": len(rows),
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"reasons": dict(Counter(row["reason"] for row in rows)),
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"fec_started": sum(row["fec_started"] for row in rows),
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"crc_started": sum(row["crc_result"] != "NOT_REACHED" for row in rows),
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"historical_order_and_starts_equal": comparisons == old, "rows": rows}
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result["passed"] = (comparisons == old and len(received) == 0 and len(rows) == 100
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and result["fec_started"] == result["crc_started"] == 0
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and set(result["reasons"]) == {"PHY_HEADER_MAGIC_MISMATCH"})
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save("baseline.json", result)
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if not result["passed"]:
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raise RuntimeError("Baseline отличается от исторического: альтернативы запрещены")
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return result
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@dataclass(frozen=True)
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class Estimate:
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timing_samples: float
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cfo_hz: float
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gain: complex
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train_coherence: float
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frequency_boundary: bool = False
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timing_boundary: bool = False
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def interpolate(values: np.ndarray, positions: np.ndarray) -> np.ndarray:
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"""Оконная sinc, ±8 исходных отсчётов; целые позиции сохраняются точно."""
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positions = np.asarray(positions, np.float64)
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centers = np.floor(positions).astype(np.int64)
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offsets = np.arange(-7, 9)
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indexes = centers[..., None] + offsets
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if indexes.min() < 0 or indexes.max() >= len(values):
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raise ValueError("Опора интерполяции вне окна")
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distance = positions[..., None] - indexes
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weights = np.sinc(distance) * np.where(np.abs(distance) < 8, .5 + .5 * np.cos(np.pi * distance / 8), 0)
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weights /= weights.sum(axis=-1, keepdims=True)
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return np.sum(values[indexes] * weights, axis=-1)
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@lru_cache(maxsize=2)
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def frequency_grid(symbol_rate: int) -> tuple[np.ndarray, np.ndarray]:
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"""Один заранее зафиксированный диапазон в циклах/символ."""
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frequencies = np.linspace(-250, 250, 501) * (symbol_rate / 500_000)
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times = (TRAIN + .5) / symbol_rate
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rotations = np.exp(-2j * np.pi * frequencies[:, None] * times)
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return frequencies, rotations
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def fit_gain(symbols: np.ndarray, symbol_rate: int, cfo_hz: float) -> complex:
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"""Единственная оценка комплексного коэффициента по TRAIN, фаза при t=0."""
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times = (TRAIN + .5) / symbol_rate
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return complex(np.mean(symbols * EXPECTED[TRAIN] * np.exp(-2j * np.pi * cfo_hz * times)))
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def coherence(symbols: np.ndarray, gain: complex) -> float:
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"""Нормированный TRAIN-критерий, без проверочных и информационных битов."""
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return float(abs(gain) ** 2 / max(float(np.mean(abs(symbols) ** 2)), 1e-30))
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def frequency_search(symbols: np.ndarray, symbol_rate: int) -> tuple[float, complex, float, bool]:
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"""Сетка и единственное локальное уточнение; диапазон не расширяется."""
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frequencies, rotations = frequency_grid(symbol_rate)
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power = abs(rotations @ (symbols * EXPECTED[TRAIN])) ** 2
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index = int(np.argmax(power))
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boundary = index in (0, len(frequencies) - 1)
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offset = 0.0
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if not boundary:
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left, middle, right = power[index - 1:index + 2]
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denominator = left - 2 * middle + right
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if denominator < 0:
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offset = float(np.clip(.5 * (left - right) / denominator, -.5, .5))
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frequency = float(frequencies[index] + offset * (frequencies[1] - frequencies[0]))
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gain = fit_gain(symbols, symbol_rate, frequency)
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return frequency, gain, coherence(symbols, gain), boundary
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def estimate_variant(matched: np.ndarray, nominal: int, symbol_rate: int,
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variant: str, stock_timing: float, stock_cfo: float) -> Estimate:
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"""Оцениватель не получает ни header/payload, ни VALIDATION/CRC."""
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samples_per_symbol = FS // symbol_rate
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if variant == "D3":
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offsets = np.linspace(-.5, .5, 33) * samples_per_symbol
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else:
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offsets = np.array([stock_timing])
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best = None
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for offset in offsets:
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positions = nominal + offset + TRAIN * samples_per_symbol
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symbols = interpolate(matched, positions)
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if variant in ("D2", "D3"):
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frequency, gain, score, boundary = frequency_search(symbols, symbol_rate)
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else:
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frequency = stock_cfo if variant == "D0" else 0.0
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gain = fit_gain(symbols, symbol_rate, frequency)
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score, boundary = coherence(symbols, gain), False
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candidate = Estimate(float(offset), frequency, gain, score, boundary,
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variant == "D3" and abs(offset) == samples_per_symbol / 2)
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if best is None or candidate.train_coherence > best.train_coherence:
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best = candidate
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return best
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def compensate(symbols: np.ndarray, symbol_rate: int, estimate: Estimate) -> np.ndarray:
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"""Один знак компенсации, единая шкала времени для всех вариантов."""
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if abs(estimate.gain) == 0:
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raise ValueError("Нулевой коэффициент")
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times = (np.arange(len(symbols)) + .5) / symbol_rate
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return symbols * np.exp(-2j * np.pi * estimate.cfo_hz * times) / estimate.gain
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def squared_cfo_statistics(symbols: np.ndarray, symbol_rate: int) -> dict:
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"""Разложить ровно активную штатную двухблочную оценку, без иной модели."""
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blocks = (symbols[:1024] ** 2).reshape(2, 512).mean(axis=1)
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phase = np.unwrap(np.angle(blocks))
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delta = float(phase[1] - phase[0])
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interval = 512 / symbol_rate
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return {"symbol_ranges": [[0, 512], [512, 1024]], "block_values": blocks,
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"block_abs": abs(blocks), "phase_difference_rad": delta,
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"block_center_times_seconds": [256 / symbol_rate, 768 / symbol_rate],
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"delta_time_seconds": interval, "cfo_hz": delta / (4 * np.pi * interval),
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"unambiguous_abs_hz": symbol_rate / 2048,
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"formula": "delta_phase / (4*pi*delta_time)",
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"input_rate_hz": symbol_rate, "discarded_symbols": [1024, 1280]}
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class Frontend:
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"""Доступ к фактическому RX-фильтру и штатному извлечению нужной скорости."""
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def __init__(self, symbol_rate: int):
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self.symbol_rate = symbol_rate
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self.samples_per_symbol = FS // symbol_rate
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self.processor = packet.PacketProcessor(viterbi=physical.conv.viterbi_decode_soft)
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self.taps = packet.bind(packet.lab043._matched_filter_taps,
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SAMPLES_PER_SYMBOL=self.samples_per_symbol)()
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self.nominal = 16 * self.samples_per_symbol + len(self.taps) - 1
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def filter(self, values: np.ndarray) -> np.ndarray:
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if self.symbol_rate == 500_000:
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return self.processor.filter(self.processor.shift(values))
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return packet.lab043._matched_waveform(values, 0, len(values))[0]
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def extract(self, values: np.ndarray, count: int):
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if self.symbol_rate == 500_000:
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return self.processor.extract(values, 0, count)
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return packet.previous.iq._extract_soft_window(values, 0, count)
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def train_support(self) -> tuple[int, int]:
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"""Сырая опора всех TRAIN-проб: FIR, sinc и полсимвола по краям."""
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margin = int(np.ceil(self.samples_per_symbol / 2)) + 8
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low = self.nominal + int(TRAIN[0]) * self.samples_per_symbol - len(self.taps) + 1 - margin
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high = self.nominal + int(TRAIN[-1]) * self.samples_per_symbol + margin + 1
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return low, high
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def estimation_filter(self, values: np.ndarray) -> np.ndarray:
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"""Те же RRC/carrier; оценивание не читает IQ вне сырой опоры TRAIN.
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Локальный DC здесь — nuisance preprocessing оценивателя. Решения символов
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используют исходный штатный filter(), поэтому D0 не меняет вход решения.
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Короткая свёртка исключает даже округления FFT от проверочного участка.
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"""
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low, high = self.train_support()
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local = values[low:high]
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rotation = packet.lab043._carrier_downconversion_vector(low, len(local))
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filtered = oaconvolve((local - np.mean(local)) * rotation, self.taps, mode="full")
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matched = np.zeros(len(values) + len(self.taps) - 1, dtype=filtered.dtype)
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matched[low:low + len(filtered)] = filtered
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return matched
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def decode_body(soft: np.ndarray) -> tuple[dict, bytes | None]:
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"""Существующая проверка header/FEC/CRC; наблюдение реальных вызовов."""
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calls = Counter()
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def viterbi(values, count):
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calls["fec"] += 1
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return physical.conv.viterbi_decode_soft(values, count)
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def parse(values):
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calls["crc"] += 1
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return physical.parse_packet(values)
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decoder = packet.bind(physical.analyze_post_preamble_soft,
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conv=SimpleNamespace(encoded_bit_count=physical.conv.encoded_bit_count,
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viterbi_decode_soft=viterbi), parse_packet=parse)
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reception = decoder(soft)
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result = reception.analysis
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return {"HEADER_ACCEPTED": bool(result["phy_header_pass"]),
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"FEC_STARTED": bool(calls["fec"]),
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"FEC_RESULT": ("PASS" if result["fec_decode_pass"] else "FAIL") if calls["fec"] else "NOT_REACHED",
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"CRC_STARTED": bool(calls["crc"]), "CRC_RESULT": result["crc"],
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"PACKET_OUTPUT": result["crc"] == physical.CRC_PASS,
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"protocol_header_pass": bool(result["protocol_header_pass"]),
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"decoder_analysis": result}, reception.packet_bytes
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def error_metrics(normalized: np.ndarray, symbols: np.ndarray, estimate: Estimate,
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symbol_rate: int, expected_header: np.ndarray | None) -> dict:
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"""Оценка ошибки только после заморозки параметров; эталон не идёт оценивателю."""
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decisions = normalized.real >= 0
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errors = decisions[:1280] != PREAMBLE
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header = normalized.real[1280:1424]
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voted = header.reshape(48, 3).sum(axis=1) >= 0
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times = (VALIDATION + .5) / symbol_rate
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predicted = estimate.gain * EXPECTED[VALIDATION] * np.exp(2j * np.pi * estimate.cfo_hz * times)
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residual = symbols[VALIDATION] - predicted
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result = {"preamble_errors": int(errors.sum()), "train_errors": int(errors[TRAIN].sum()),
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"validation_errors": int(errors[VALIDATION].sum()),
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"train_symbols": len(TRAIN), "validation_symbols": len(VALIDATION),
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"validation_residual_power": float(np.mean(abs(residual) ** 2)),
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"validation_model_power": float(np.mean(abs(predicted) ** 2)),
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"validation_actual_power": float(np.mean(abs(symbols[VALIDATION]) ** 2)),
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"decoded_header_hex": np.packbits(voted).tobytes().hex(),
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"header_raw_errors": None, "header_voted_errors": None, "magic_errors": None}
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if expected_header is not None:
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result.update(header_raw_errors=int(np.count_nonzero(decisions[1280:1424] != expected_header)),
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header_voted_errors=int(np.count_nonzero(voted != expected_header[::3])),
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magic_errors=int(np.count_nonzero(voted[:16] != expected_header[::3][:16])))
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return result
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def analyze_frame(reader, start: int, symbol_rate: int, group: str, frame_number: int,
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expected_header: np.ndarray | None, stock_probe: dict | None = None,
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*, write_packets: bool = True) -> tuple[list, dict, dict]:
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"""Диагностика при известном начале; длина тела берётся только из header."""
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frontend = Frontend(symbol_rate)
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samples_per_symbol = frontend.samples_per_symbol
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values = reader.read(start, (PROBE_SYMBOLS + 42) * samples_per_symbol)
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window = frontend.extract(values, PROBE_SYMBOLS)
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matched = frontend.filter(values)
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estimation_matched = frontend.estimation_filter(values)
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nominal = frontend.nominal
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if stock_probe is not None:
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if not np.array_equal(window.normalized_real, stock_probe["soft"]):
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raise AssertionError("Диагностический probe не совпал со штатным baseline")
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stock_symbols = matched[nominal + window.timing_offset_samples:
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nominal + window.timing_offset_samples + PROBE_SYMBOLS * samples_per_symbol:
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samples_per_symbol].astype(np.complex128)
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statistics = squared_cfo_statistics(stock_symbols[:1280], symbol_rate)
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if not np.isclose(statistics["cfo_hz"], window.carrier["cfo_hz"], atol=1e-8):
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raise AssertionError("Разложение CFO не воспроизвело штатную ветвь")
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results, observations = [], {}
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for variant in VARIANTS:
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if not window.passed and variant != "D3":
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results.append({"group": group, "frame": frame_number, "variant": variant,
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"start_sample": start, "known_start_diagnostic": True, "symbol_rate": symbol_rate,
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"timing_samples": window.timing_offset_samples,
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"timing_symbols": window.timing_offset_samples / samples_per_symbol,
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"cfo_hz": window.carrier.get("cfo_hz"), "phase_rad": window.carrier.get("phase_rad"),
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"phase_epoch": "t=0, symbol k at (k+0.5)/Rs", "gain_abs": window.carrier.get("abs_h"),
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"train_coherence": None, "frequency_boundary": False, "timing_boundary": False,
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"header_reason": window.reason, "accepted_packet_bytes": None,
|
||||
"preamble_errors": None, "train_errors": None, "validation_errors": None,
|
||||
"train_symbols": len(TRAIN), "validation_symbols": len(VALIDATION),
|
||||
"header_raw_errors": None, "header_voted_errors": None, "magic_errors": None,
|
||||
"HEADER_ACCEPTED": False, "FEC_STARTED": False, "FEC_RESULT": "NOT_REACHED",
|
||||
"CRC_STARTED": False, "CRC_RESULT": "NOT_REACHED", "PACKET_OUTPUT": False,
|
||||
"diagnostic_available": False})
|
||||
continue
|
||||
if variant == "S0":
|
||||
gain = window.carrier["abs_h"] * np.exp(1j * window.carrier["phase_rad"])
|
||||
estimate = Estimate(window.timing_offset_samples, window.carrier["cfo_hz"], gain,
|
||||
coherence(stock_symbols[TRAIN], gain))
|
||||
symbols = stock_symbols
|
||||
else:
|
||||
estimate = estimate_variant(estimation_matched, nominal, symbol_rate, variant,
|
||||
window.timing_offset_samples, window.carrier["cfo_hz"])
|
||||
symbols = interpolate(matched, nominal + estimate.timing_samples +
|
||||
np.arange(PROBE_SYMBOLS) * samples_per_symbol)
|
||||
normalized = compensate(symbols, symbol_rate, estimate)
|
||||
if variant == "S0" and not np.allclose(normalized.real, window.normalized_real, atol=1e-12, rtol=1e-12):
|
||||
raise AssertionError("S0 отличается от штатной нормировки")
|
||||
header = physical.decode_phy_header_soft(normalized.real[1280:])
|
||||
result = {"group": group, "frame": frame_number, "variant": variant, "start_sample": start,
|
||||
"diagnostic_available": True,
|
||||
"known_start_diagnostic": True, "symbol_rate": symbol_rate,
|
||||
"timing_samples": estimate.timing_samples,
|
||||
"timing_symbols": estimate.timing_samples / samples_per_symbol,
|
||||
"cfo_hz": estimate.cfo_hz, "phase_rad": float(np.angle(estimate.gain)),
|
||||
"phase_epoch": "t=0, symbol k at (k+0.5)/Rs",
|
||||
"estimator_preprocessing": "STOCK" if variant == "S0" else "TRAIN_SUPPORT_DC",
|
||||
"decision_preprocessing": "STOCK_GLOBAL_DC",
|
||||
"gain_abs": abs(estimate.gain), "train_coherence": estimate.train_coherence,
|
||||
"frequency_boundary": estimate.frequency_boundary, "timing_boundary": estimate.timing_boundary,
|
||||
"header_reason": header["reason"], "accepted_packet_bytes": header["packet_bytes"],
|
||||
**error_metrics(normalized, symbols, estimate, symbol_rate, expected_header)}
|
||||
body_soft = normalized.real[1280:]
|
||||
if header["passed"]:
|
||||
packet_bytes = int(header["packet_bytes"])
|
||||
count = 1280 + 144 + physical.conv.encoded_bit_count(packet_bytes * 8)
|
||||
length = (count + 42) * samples_per_symbol
|
||||
if start + length > reader.size:
|
||||
result.update(HEADER_ACCEPTED=True, FEC_STARTED=False, FEC_RESULT="NOT_REACHED",
|
||||
CRC_STARTED=False, CRC_RESULT="NOT_REACHED", PACKET_OUTPUT=False,
|
||||
body_reason="TRUNCATED_FULL_IQ_WINDOW")
|
||||
results.append(result)
|
||||
continue
|
||||
full_values = reader.read(start, length)
|
||||
if variant == "S0":
|
||||
full_window = frontend.extract(full_values, count)
|
||||
body_soft = full_window.normalized_real[1280:]
|
||||
else:
|
||||
full_matched = frontend.filter(full_values)
|
||||
full_symbols = interpolate(full_matched, nominal + estimate.timing_samples +
|
||||
np.arange(count) * samples_per_symbol)
|
||||
body_soft = compensate(full_symbols, symbol_rate, estimate).real[1280:]
|
||||
decoded, packet_bytes = decode_body(body_soft)
|
||||
result.update(decoded)
|
||||
if result["PACKET_OUTPUT"] and write_packets:
|
||||
name = f"packet_{group}_{frame_number:02d}_{variant}.bin"
|
||||
(OUTPUT / name).write_bytes(packet_bytes)
|
||||
result["packet_file"] = name
|
||||
result["packet_sha256"] = hashlib.sha256(packet_bytes).hexdigest()
|
||||
observations[variant] = {"normalized": normalized, "symbols": symbols,
|
||||
"validation_residual": (symbols[VALIDATION] - estimate.gain * EXPECTED[VALIDATION] *
|
||||
np.exp(2j * np.pi * estimate.cfo_hz * (VALIDATION + .5) / symbol_rate))}
|
||||
results.append(result)
|
||||
return results, observations, statistics
|
||||
|
||||
|
||||
def candidate_mapping(baseline: dict, frames: list) -> list:
|
||||
"""Связать независимые кандидаты с TX только после завершения baseline."""
|
||||
mapping = []
|
||||
chosen = {min(range(len(baseline["rows"])), key=lambda i: abs(baseline["rows"][i]["absolute_refined"] - frame["start"])):
|
||||
frame["frame"] for frame in frames}
|
||||
for index, row in enumerate(baseline["rows"]):
|
||||
nearest = min(frames, key=lambda frame: abs(frame["start"] - row["absolute_refined"]))
|
||||
delta = row["absolute_refined"] - nearest["start"]
|
||||
mapping.append({"candidate_id": row["candidate_id"], "coarse_start": row["base_sample"] + row["coarse"],
|
||||
"refined_start": row["absolute_refined"], "nearest_frame": nearest["frame"],
|
||||
"difference_from_diagnostic_start": delta,
|
||||
"true_start_frame": chosen.get(index), "inside_known_tx": abs(delta) < 92256,
|
||||
"reason": row["reason"]})
|
||||
if len(chosen) != 16 or any(abs(row["difference_from_diagnostic_start"]) > 1 for row in mapping if row["true_start_frame"]):
|
||||
raise AssertionError("Не воспроизведены 16 настоящих начал")
|
||||
return mapping
|
||||
|
||||
|
||||
def summarize(rows: list) -> dict:
|
||||
"""Все варианты раздельно; лучшего по CRC не выбираем."""
|
||||
output = {}
|
||||
for group in sorted({row["group"] for row in rows}):
|
||||
output[group] = {}
|
||||
for variant in VARIANTS:
|
||||
selected = [row for row in rows if row["group"] == group and row["variant"] == variant]
|
||||
output[group][variant] = {"frames": len(selected),
|
||||
"header_accepted": sum(row["HEADER_ACCEPTED"] for row in selected),
|
||||
"fec_started": sum(row["FEC_STARTED"] for row in selected),
|
||||
"crc_pass": sum(row["CRC_RESULT"] == physical.CRC_PASS for row in selected),
|
||||
"diagnostic_available": sum(row.get("diagnostic_available", True) for row in selected),
|
||||
"train_errors": sum(row["train_errors"] or 0 for row in selected),
|
||||
"validation_errors": sum(row["validation_errors"] or 0 for row in selected),
|
||||
"header_voted_errors": (sum(row["header_voted_errors"] or 0 for row in selected)
|
||||
if any(row["header_voted_errors"] is not None for row in selected) else None),
|
||||
"frequency_boundaries": sum(row["frequency_boundary"] for row in selected),
|
||||
"timing_boundaries": sum(row["timing_boundary"] for row in selected)}
|
||||
return output
|
||||
|
||||
|
||||
def write_tables(rows: list) -> None:
|
||||
"""Машинная полная таблица и плоский CSV с состояниями строгого декодера."""
|
||||
save("frame_results.json", rows)
|
||||
fields = [key for key in rows[0] if key != "decoder_analysis"]
|
||||
fields += ["packet_file", "packet_sha256", "candidate_id"]
|
||||
fields = list(dict.fromkeys(fields))
|
||||
with (OUTPUT / "frame_results.csv").open("w", newline="", encoding="utf-8-sig") as stream:
|
||||
writer = csv.DictWriter(stream, fields, extrasaction="ignore")
|
||||
writer.writeheader()
|
||||
writer.writerows(rows)
|
||||
|
||||
|
||||
def run_diagnosis(baseline: dict) -> dict:
|
||||
"""Фиксированный набор сохранённых кадров и контролей; без аппаратуры."""
|
||||
audit = energy.read_json(ROOT / "data/processed/lab055/energy_audit_v2.json")
|
||||
mapping = candidate_mapping(baseline, audit["experiments"]["Lab054"]["rx"]["frames"])
|
||||
save("candidate_mapping.json", mapping)
|
||||
save("other_candidates.json", [row for row, mapped in zip(baseline["rows"], mapping) if not mapped["true_start_frame"]])
|
||||
rx = energy.Cs8File(ROOT / "data/raw/lab054/rx_stream.cs8")
|
||||
plans = historical.plans()
|
||||
rows, diagnostics, observations = [], [], {}
|
||||
for mapped in mapping:
|
||||
if not mapped["true_start_frame"]:
|
||||
continue
|
||||
number = mapped["true_start_frame"]
|
||||
selected, observed, statistics = analyze_frame(rx, mapped["refined_start"], 500_000, "Lab054", number,
|
||||
plans[number - 1].plan.phy_header_bits, baseline["rows"][mapped["candidate_id"] - 1]["probe"])
|
||||
for row in selected:
|
||||
row["candidate_id"] = mapped["candidate_id"]
|
||||
rows.extend(selected)
|
||||
diagnostics.append({"group": "Lab054", "frame": number, **statistics})
|
||||
for variant, values in observed.items():
|
||||
for kind, array in values.items():
|
||||
observations[f"frame{number:02d}_{variant}_{kind}"] = array
|
||||
print(f"Lab054 frame {number}/16", flush=True)
|
||||
tx = energy.Cs8File(ROOT / "data/raw/lab054/tx_stream.cs8")
|
||||
for number, plan in enumerate(plans, 1):
|
||||
selected, _, _ = analyze_frame(tx, (number - 1) * 92256, 500_000, "TX054", number, plan.plan.phy_header_bits)
|
||||
rows.extend(selected)
|
||||
old_directory = Path(audit["experiments"]["Lab047"]["directory"])
|
||||
old = energy.read_json(old_directory / "independent_reprocess_result_corrected.json")
|
||||
old_rx = energy.Cs8File(old_directory / "rx_stream.cs8")
|
||||
accepted = [outcome for outcome in old["strict"]["outcomes"] if outcome["accepted"]]
|
||||
for number, outcome in enumerate(accepted, 1):
|
||||
start = outcome["refined_start_sample"]
|
||||
# Все исторические кадры имеют 268 байт; эталон используется только в error_metrics.
|
||||
expected_header = physical.encode_phy_header(268)
|
||||
selected, _, statistics = analyze_frame(old_rx, start, 20_000, "RX047", number, expected_header)
|
||||
rows.extend(selected)
|
||||
diagnostics.append({"group": "RX047", "frame": number, **statistics})
|
||||
print(f"Lab047 frame {number}/36", flush=True)
|
||||
for number in range(16):
|
||||
selected, _, _ = analyze_frame(rx, 8_000_000 + number * 100_000, 500_000,
|
||||
"BACKGROUND054", number + 1, None)
|
||||
rows.extend(selected)
|
||||
write_tables(rows)
|
||||
save("squared_cfo_statistics.json", diagnostics)
|
||||
np.savez_compressed(OUTPUT / "symbol_observations.npz", **observations)
|
||||
summary = {"rf_tx": 0, "historical_lab054": "NOT_A, 0/16", "baseline_reproduced": baseline["passed"],
|
||||
"train": [32, 608], "validation": [672, 1248], "known_start_diagnostics": True,
|
||||
"groups": summarize(rows)}
|
||||
save("summary.json", summary)
|
||||
return summary
|
||||
|
||||
|
||||
class ArrayFile:
|
||||
"""Синтетический контроль с тем же интерфейсом, без файла и оборудования."""
|
||||
|
||||
def __init__(self, values: np.ndarray):
|
||||
self.values = values
|
||||
self.size = len(values)
|
||||
|
||||
def read(self, start: int, count: int) -> np.ndarray:
|
||||
if start < 0 or start + count > self.size:
|
||||
raise ValueError("Синтетическое окно вне массива")
|
||||
return self.values[start:start + count]
|
||||
|
||||
|
||||
def synthetic_waveform(symbol_rate: int, *, delay_symbols: float = .171875,
|
||||
cfo_hz: float = 0, phase_rad: float = .7,
|
||||
es_n0_db: float | None = None, seed: int = 5701) -> tuple[np.ndarray, dict]:
|
||||
"""Физические параметры задаёт генератор; оцениватель их не получает.
|
||||
|
||||
При сравнении скоростей равен Es/N0 (по средней цифровой энергии),
|
||||
дисперсия комплексного белого шума масштабируется с SPS.
|
||||
"""
|
||||
mode = historical.phy.PhyMode(symbol_rate)
|
||||
waveform = historical.phy.build_parameterized_tx_complex(historical.plans()[0].plan, mode)
|
||||
indexes = np.arange(len(waveform))
|
||||
baseband = waveform * np.exp(-2j * np.pi * 50_000 * indexes / FS)
|
||||
delay_samples = delay_symbols * mode.samples_per_symbol
|
||||
padding = int(np.ceil(abs(delay_samples))) + 20
|
||||
delayed = interpolate(np.pad(baseband, padding), padding + indexes - delay_samples)
|
||||
values = delayed * np.exp(1j * (phase_rad + 2 * np.pi * (50_000 + cfo_hz) * indexes / FS))
|
||||
signal_power = float(np.mean(abs(values) ** 2))
|
||||
variance = 0.0
|
||||
if es_n0_db is not None:
|
||||
variance = signal_power * mode.samples_per_symbol / 10 ** (es_n0_db / 10)
|
||||
random_generator = np.random.default_rng(seed)
|
||||
noise = (random_generator.normal(size=len(values)) + 1j * random_generator.normal(size=len(values)))
|
||||
values = values + np.sqrt(variance / 2) * noise
|
||||
return values.astype(np.complex64), {"symbol_rate": symbol_rate, "delay_samples": delay_samples,
|
||||
"delay_symbols": delay_symbols, "cfo_hz": cfo_hz, "phase_rad": phase_rad,
|
||||
"phase_epoch": "raw n=0, before RX filtering", "es_n0_db": es_n0_db,
|
||||
"complex_noise_variance": variance, "signal_power": signal_power, "seed": seed,
|
||||
"comparison_condition": "equal digital Es/N0; noise variance scales with SPS"}
|
||||
|
||||
|
||||
def synthetic_controls() -> dict:
|
||||
"""Небольшие фиксированные контроли фазы, CFO, дробной задержки и шума."""
|
||||
symbol_checks, waveform_checks = [], []
|
||||
for symbol_rate in (20_000, 500_000):
|
||||
times = (np.arange(1280) + .5) / symbol_rate
|
||||
true_cfo = 37.5 * symbol_rate / 500_000
|
||||
true_phase = .7
|
||||
symbols = EXPECTED * np.exp(1j * (true_phase + 2 * np.pi * true_cfo * times))
|
||||
frequency, gain, score, boundary = frequency_search(symbols[TRAIN], symbol_rate)
|
||||
stock = squared_cfo_statistics(symbols, symbol_rate)
|
||||
symbol_checks.append({"symbol_rate": symbol_rate, "true_cfo": true_cfo, "estimated_cfo": frequency,
|
||||
"true_phase": true_phase, "estimated_phase": float(np.angle(gain)),
|
||||
"stock_cfo": stock["cfo_hz"], "unambiguous_abs_hz": stock["unambiguous_abs_hz"],
|
||||
"passed": abs(frequency - true_cfo) < .01 and abs(np.angle(gain) - true_phase) < .001})
|
||||
outside = symbol_rate / 2048 * 1.2
|
||||
aliased = squared_cfo_statistics(EXPECTED * np.exp(2j * np.pi * outside * times), symbol_rate)
|
||||
symbol_checks.append({"symbol_rate": symbol_rate, "true_cfo": outside,
|
||||
"estimated_cfo": aliased["cfo_hz"], "outside_stock_unambiguous_range": True,
|
||||
"expected_alias_hz": outside - symbol_rate / 1024,
|
||||
"passed": np.isclose(aliased["cfo_hz"], outside - symbol_rate / 1024)})
|
||||
for case, noise_db, residual_cfo in (("fractional_clean", None, 0.0), ("fractional_noise", 12.0, true_cfo)):
|
||||
values, truth = synthetic_waveform(symbol_rate, es_n0_db=noise_db, cfo_hz=residual_cfo, seed=5701)
|
||||
frontend = Frontend(symbol_rate)
|
||||
probe = values[:(PROBE_SYMBOLS + 42) * frontend.samples_per_symbol]
|
||||
stock_window = frontend.extract(probe, PROBE_SYMBOLS)
|
||||
estimation_matched = frontend.estimation_filter(probe)
|
||||
output_matched = frontend.filter(probe)
|
||||
for variant in VARIANTS[1:]:
|
||||
estimate = estimate_variant(estimation_matched, frontend.nominal, symbol_rate, variant,
|
||||
stock_window.timing_offset_samples, stock_window.carrier["cfo_hz"])
|
||||
symbols = interpolate(output_matched, frontend.nominal + estimate.timing_samples +
|
||||
np.arange(PROBE_SYMBOLS) * frontend.samples_per_symbol)
|
||||
normalized = compensate(symbols, symbol_rate, estimate)
|
||||
waveform_checks.append({"case": case, "variant": variant, "truth": truth,
|
||||
"estimate": asdict(estimate), "timing_error_symbols":
|
||||
estimate.timing_samples / frontend.samples_per_symbol - truth["delay_symbols"],
|
||||
"cfo_error_hz": estimate.cfo_hz - residual_cfo,
|
||||
"train_errors": int(np.count_nonzero((normalized.real[TRAIN] >= 0) != PREAMBLE[TRAIN])),
|
||||
"validation_errors": int(np.count_nonzero((normalized.real[VALIDATION] >= 0) != PREAMBLE[VALIDATION]))})
|
||||
# Полный контроль утечки файла-эталона, без подмены исходных файлов проекта.
|
||||
values, _ = synthetic_waveform(500_000, delay_symbols=0, cfo_hz=0, es_n0_db=None)
|
||||
reader = ArrayFile(values)
|
||||
expected = historical.plans()[0].plan.phy_header_bits
|
||||
first, _, _ = analyze_frame(reader, 0, 500_000, "LEAKAGE_CONTROL", 1, expected, write_packets=False)
|
||||
changed, _, _ = analyze_frame(reader, 0, 500_000, "LEAKAGE_CONTROL", 1, 1 - expected, write_packets=False)
|
||||
parameter_keys = ("timing_samples", "cfo_hz", "phase_rad", "gain_abs", "HEADER_ACCEPTED", "CRC_RESULT")
|
||||
reference_invariance = all(all(a[key] == b[key] for key in parameter_keys) for a, b in zip(first, changed))
|
||||
raw = energy.Cs8File(ROOT / "data/raw/lab054/rx_stream.cs8")
|
||||
values = raw.read(4161352, (PROBE_SYMBOLS + 42) * 16)
|
||||
altered = values.copy()
|
||||
frontend = Frontend(500_000)
|
||||
low, high = frontend.train_support()
|
||||
altered[:low] += 10 + 7j
|
||||
altered[high:] += 10 + 7j
|
||||
original = estimate_variant(frontend.estimation_filter(values), frontend.nominal, 500_000, "D3", 0, 0)
|
||||
perturbation = estimate_variant(frontend.estimation_filter(altered), frontend.nominal, 500_000, "D3", 99, 99)
|
||||
clean_delay_passed = all(abs(row["timing_error_symbols"]) <= 1/32 and row["validation_errors"] == 0
|
||||
for row in waveform_checks if row["variant"] == "D3" and row["case"] == "fractional_clean")
|
||||
result = {"symbol_checks": symbol_checks, "waveform_checks": waveform_checks,
|
||||
"clean_fractional_delay_passed": clean_delay_passed,
|
||||
"expected_bits_invariance": reference_invariance,
|
||||
"raw_outside_train_invariance": original == perturbation,
|
||||
"raw_train_support_500k": [low, high],
|
||||
"passed": all(row["passed"] for row in symbol_checks) and clean_delay_passed and reference_invariance and original == perturbation}
|
||||
save("synthetic_controls.json", result)
|
||||
if not result["passed"]:
|
||||
raise AssertionError("Контроли синхронизации/утечки не прошли")
|
||||
return result
|
||||
|
||||
|
||||
def make_plots() -> None:
|
||||
"""Созвездия, фазы, расположение ошибок и остаток всех 16 кадров."""
|
||||
import matplotlib
|
||||
matplotlib.use("Agg")
|
||||
import matplotlib.pyplot as plt
|
||||
|
||||
rows = energy.read_json(OUTPUT / "frame_results.json")
|
||||
rows = [row for row in rows if row["group"] == "Lab054"]
|
||||
with np.load(OUTPUT / "symbol_observations.npz") as arrays:
|
||||
colors = dict(zip(VARIANTS, ("#666666", "#a76b25", "#14835b", "#2465bc", "#9135a3")))
|
||||
for variant in VARIANTS:
|
||||
figure, axes = plt.subplots(4, 4, figsize=(14, 12), constrained_layout=True)
|
||||
for number, axis in enumerate(axes.flat, 1):
|
||||
symbols = arrays[f"frame{number:02d}_{variant}_normalized"][VALIDATION]
|
||||
axis.scatter(symbols.real, symbols.imag, s=3, alpha=.4, color=colors[variant])
|
||||
axis.scatter([-1, 1], [0, 0], marker="x", color="black")
|
||||
axis.set(title=f"Кадр {number}", xlabel="I / |h|", ylabel="Q / |h|")
|
||||
axis.grid(alpha=.2)
|
||||
figure.suptitle(f"Lab054, {variant}: созвездие VALIDATION, решения после штатного RRC")
|
||||
figure.savefig(OUTPUT / f"constellation_{variant}.png", dpi=130)
|
||||
plt.close(figure)
|
||||
figure, axes = plt.subplots(4, 4, figsize=(15, 12), constrained_layout=True)
|
||||
for number, axis in enumerate(axes.flat, 1):
|
||||
for variant in VARIANTS:
|
||||
corrected = arrays[f"frame{number:02d}_{variant}_normalized"][:1280] * EXPECTED
|
||||
# Круговое среднее фазы, без переоценки компенсации.
|
||||
unit = corrected / np.maximum(abs(corrected), 1e-30)
|
||||
phase = np.angle(unit.reshape(40, 32).mean(axis=1))
|
||||
axis.plot((np.arange(40) * 32 + 16) / 500, phase, color=colors[variant], label=variant, linewidth=.8)
|
||||
axis.axvspan(32/500, 608/500, color="green", alpha=.06)
|
||||
axis.axvspan(672/500, 1248/500, color="blue", alpha=.06)
|
||||
axis.set(title=f"Кадр {number}", xlabel="Время преамбулы, мс", ylabel="Ошибка фазы, рад", ylim=(-np.pi, np.pi))
|
||||
axes.flat[0].legend(fontsize=8, ncol=3)
|
||||
figure.suptitle("Фаза относительно PRBS7; круговое среднее каждых 32 символов")
|
||||
figure.savefig(OUTPUT / "phase_errors.png", dpi=130)
|
||||
plt.close(figure)
|
||||
errors, residuals, labels = [], [], []
|
||||
for number in range(1, 17):
|
||||
for variant in VARIANTS:
|
||||
symbols = arrays[f"frame{number:02d}_{variant}_normalized"][:1280]
|
||||
errors.append((symbols.real >= 0) != PREAMBLE)
|
||||
residuals.append(abs(arrays[f"frame{number:02d}_{variant}_validation_residual"]) ** 2)
|
||||
labels.append(f"{number:02d}/{variant}")
|
||||
figure, axes = plt.subplots(1, 2, figsize=(16, 15), constrained_layout=True)
|
||||
axes[0].imshow(errors, aspect="auto", interpolation="nearest", cmap="Greys", vmin=0, vmax=1)
|
||||
plot = axes[1].imshow(10*np.log10(np.maximum(residuals, 1e-12)), aspect="auto", interpolation="nearest", cmap="viridis")
|
||||
for axis in axes:
|
||||
axis.set_yticks(np.arange(80), labels, fontsize=6)
|
||||
axis.set_ylabel("Кадр / вариант")
|
||||
axes[0].set(title="Ошибочные решения преамбулы", xlabel="Номер символа преамбулы")
|
||||
axes[1].set(title="Мощность остатка VALIDATION, дБ относительно 1 код²", xlabel="Индекс внутри VALIDATION")
|
||||
figure.colorbar(plot, ax=axes[1], shrink=.5)
|
||||
figure.savefig(OUTPUT / "errors_and_residual.png", dpi=130)
|
||||
plt.close(figure)
|
||||
figure, axes = plt.subplots(2, 2, figsize=(13, 8), constrained_layout=True)
|
||||
for variant in VARIANTS:
|
||||
selected = sorted((row for row in rows if row["variant"] == variant), key=lambda row: row["frame"])
|
||||
for axis, key in zip(axes.flat, ("validation_errors", "header_voted_errors", "cfo_hz", "timing_symbols")):
|
||||
axis.plot(range(1, 17), [row[key] for row in selected], marker=".", label=variant, color=colors[variant])
|
||||
axis.set_xlabel("Номер кадра")
|
||||
axis.grid(alpha=.2)
|
||||
for axis, title in zip(axes.flat, ("Ошибки VALIDATION из 576", "Ошибки заголовка из 48", "Оценка CFO, Гц", "Timing, доля символа")):
|
||||
axis.set_title(title)
|
||||
axes.flat[0].legend(ncol=5)
|
||||
figure.savefig(OUTPUT / "comparison.png", dpi=140)
|
||||
plt.close(figure)
|
||||
|
||||
|
||||
def verify_integrity() -> dict:
|
||||
"""Проверить исходники и старые артефакты; журнал разрешает только дописывание."""
|
||||
initial = energy.read_json(OUTPUT / "initial_state.json")
|
||||
changed_sources, changed_data = [], []
|
||||
for name, expected in initial["source_files"].items():
|
||||
if energy.sha256(ROOT / name) != expected["sha256"]:
|
||||
changed_sources.append(name)
|
||||
for name, expected in initial["historical_files"].items():
|
||||
path = Path(name)
|
||||
if path.name in ("PROJECT_LOG.md", "LABS_INDEX.md"):
|
||||
actual = hashlib.sha256(path.read_bytes()[:expected["bytes"]]).hexdigest()
|
||||
else:
|
||||
actual = energy.sha256(path)
|
||||
if actual != expected["sha256"]:
|
||||
changed_data.append(name)
|
||||
loaded = {}
|
||||
for module in list(sys.modules.values()):
|
||||
filename = getattr(module, "__file__", None)
|
||||
if filename:
|
||||
path = Path(filename).resolve()
|
||||
if path.is_relative_to(ROOT) and path.suffix == ".py":
|
||||
loaded[path.relative_to(ROOT).as_posix()] = energy.sha256(path)
|
||||
result = {"source_changes": changed_sources, "historical_changes": changed_data,
|
||||
"loaded_processing_sources_sha256": loaded,
|
||||
"loaded_versions": {name: {"version": getattr(sys.modules.get(name), "__version__", None),
|
||||
"file": getattr(sys.modules.get(name), "__file__", None)}
|
||||
for name in ("numpy", "scipy", "matplotlib", "numba")},
|
||||
"passed": not changed_sources and not changed_data}
|
||||
save("integrity.json", result)
|
||||
if not result["passed"]:
|
||||
raise AssertionError("Изменились исходные файлы вне Lab057")
|
||||
return result
|
||||
|
||||
|
||||
def run_functional_tests() -> None:
|
||||
"""Быстрые свойства без IQ-файлов и оборудования."""
|
||||
assert len(TRAIN) == len(VALIDATION) == 576
|
||||
assert VALIDATION[0] - TRAIN[-1] > 20
|
||||
assert set(TRAIN).isdisjoint(VALIDATION)
|
||||
times = (np.arange(1280) + .5) / 500_000
|
||||
symbols = EXPECTED * np.exp(1j * (.7 + 2 * np.pi * 31.25 * times))
|
||||
frequency, gain, score, boundary = frequency_search(symbols[TRAIN], 500_000)
|
||||
assert abs(frequency - 31.25) < .01 and score > .99999 and not boundary
|
||||
assert abs(np.angle(gain) - .7) < .001
|
||||
|
||||
|
||||
def main() -> None:
|
||||
parser = argparse.ArgumentParser(description=__doc__)
|
||||
parser.add_argument("--baseline-only", action="store_true")
|
||||
arguments = parser.parse_args()
|
||||
run_functional_tests()
|
||||
result = reproduce_baseline()
|
||||
print("BASELINE", result["passed"], result["reasons"], "RF TX=0", flush=True)
|
||||
if not arguments.baseline_only:
|
||||
summary = run_diagnosis(result)
|
||||
summary["controls_passed"] = synthetic_controls()["passed"]
|
||||
make_plots()
|
||||
summary["integrity_passed"] = verify_integrity()["passed"]
|
||||
save("summary.json", summary)
|
||||
print(json.dumps(plain(summary), ensure_ascii=False, indent=2))
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user