new kamil adc

python_app/workflows/kamil_adc_neutral_preprocess.py

@@ -7,6 +7,10 @@ import time
 
 import numpy as np
 
+from python_app.hardware_full.kamil_adc import (
+    KamilAdcProcessingParams,
+    KamilAdcSweepProcessor,
+)
 from python_app.models.dataset_model import ComboKey, SweepCollection, TraceData
 from python_app.models.run_config_model import ComboModel, RunConfigModel
 
@@ -15,33 +19,30 @@ logger = logging.getLogger(__name__)
 
 def build_kamil_adc_neutral_s21_sets(
     config: RunConfigModel,
-    point_count: int,
 ) -> tuple[SweepCollection, SweepCollection]:
     """Build neutral S21 calibration/reference collections for the Kamil ADC radar.
 
     The calibration uses unit S21 (1+0j) and the reference uses zero S21 across
     every configured combo, so applying them in the preprocessing pipeline leaves
-    the input S21 unchanged. Returns the ``(calibration, reference)`` collections.
+    the input S21 unchanged. The frequency axis is the exact acquisition grid
+    (``radar.kamil_adc.band``), so neutral sets line up sample-for-sample with
+    live sweeps. Returns the ``(calibration, reference)`` collections.
     """
     if not config.is_kamil_adc:
         raise ValueError("Neutral Kamil ADC sets require radar.model='kamil_adc'")
 
-    points = int(point_count)
-    if points <= 0:
-        raise ValueError("Kamil ADC neutral set point count must be > 0")
-
     combos = list(config.combos)
     if not combos:
-        combos = RunConfigModel.build_full_combos(config.input_switch.positions, config.output_switch.positions)
+        combos = RunConfigModel.build_full_combos(
+            config.input_switch.positions, config.output_switch.positions
+        )
     if not combos:
         raise ValueError("Kamil ADC neutral sets require at least one switch combo")
 
-    frequency_hz = np.linspace(
-        float(config.radar.sweep.start_hz),
-        float(config.radar.sweep.stop_hz),
-        points,
-        dtype=np.float32,
-    )
+    # Single source of truth for the axis: the same grid the processor emits.
+    processor = KamilAdcSweepProcessor(KamilAdcProcessingParams.from_kamil_model(config.radar.kamil_adc))
+    frequency_hz = processor.grid_hz
+
     now_ns = time.monotonic_ns()
     calibration = _neutral_collection(
         combos=combos,
@@ -55,7 +56,9 @@ def build_kamil_adc_neutral_s21_sets(
         s21_value=np.complex64(0.0 + 0.0j),
         monotonic_ns=now_ns,
     )
-    logger.info("Built neutral Kamil ADC S21 sets: combos=%d points=%d", len(combos), points)
+    logger.info(
+        "Built neutral Kamil ADC S21 sets: combos=%d points=%d", len(combos), int(frequency_hz.size)
+    )
     return calibration, reference
 
 
@@ -66,17 +69,16 @@ def _neutral_collection(
     s21_value: np.complex64,
     monotonic_ns: int,
 ) -> SweepCollection:
-    traces = []
-    for combo in combos:
-        point_count = int(frequency_hz.size)
-        traces.append(
-            TraceData(
-                combo=ComboKey(input=int(combo.input), output=int(combo.output)),
-                frequency_hz=frequency_hz.copy(),
-                s11=np.zeros(point_count, dtype=np.complex64),
-                s21=np.full(point_count, s21_value, dtype=np.complex64),
-            )
+    point_count = int(frequency_hz.size)
+    traces = [
+        TraceData(
+            combo=ComboKey(input=int(combo.input), output=int(combo.output)),
+            frequency_hz=frequency_hz.copy(),
+            s11=np.zeros(point_count, dtype=np.complex64),
+            s21=np.full(point_count, s21_value, dtype=np.complex64),
         )
+        for combo in combos
+    ]
     return SweepCollection(
         collection_id=1,
         monotonic_ns=monotonic_ns,