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[fix](trx-rs): handle VDES audio messages and offset sweet spot

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Recognize VDES decode frames in the audio client and keep sweet-spot scans from centering directly on the tuned frequency.

Co-authored-by: Stan Grams <sjg@haxx.space>
Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
Stan Grams
2026-03-03 01:22:09 +01:00
parent 696ba09049
commit 906db0aee2
2 changed files with 90 additions and 8 deletions
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src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
+87 -6
View File
@@ -1273,6 +1273,54 @@ function effectiveSpectrumCoverageSpanHz(sampleRateHz) {
return sampleRate * Math.max(0.01, Math.min(1.0, ratio));
}
function sweetSpotMinimumOffsetHz(bandwidthHz) {
if (!Number.isFinite(bandwidthHz) || bandwidthHz <= 0) return 0;
return bandwidthHz / 2;
}
function sweetSpotCenterHasRequiredOffset(centerHz, freqHz, bandwidthHz) {
if (!Number.isFinite(centerHz) || !Number.isFinite(freqHz)) return false;
const minOffsetHz = sweetSpotMinimumOffsetHz(bandwidthHz);
if (!Number.isFinite(minOffsetHz) || minOffsetHz <= 0) return true;
return Math.abs(centerHz - freqHz) >= minOffsetHz - 1;
}
function chooseSweetSpotCenterOutsideOffsetRange(freqHz, bandwidthHz, minCenterHz, maxCenterHz, preferredCenterHz = null) {
if (!Number.isFinite(freqHz) || !Number.isFinite(minCenterHz) || !Number.isFinite(maxCenterHz) || minCenterHz > maxCenterHz) {
return null;
}
const minOffsetHz = sweetSpotMinimumOffsetHz(bandwidthHz);
if (!Number.isFinite(minOffsetHz) || minOffsetHz <= 0) {
const fallbackCenterHz = Number.isFinite(preferredCenterHz) ? preferredCenterHz : freqHz;
return alignFreqToRigStep(Math.round(Math.max(minCenterHz, Math.min(maxCenterHz, fallbackCenterHz))));
}
const targetCentersHz = [];
const lowerTargetHz = alignFreqToRigStep(Math.round(freqHz - minOffsetHz));
const upperTargetHz = alignFreqToRigStep(Math.round(freqHz + minOffsetHz));
if (lowerTargetHz >= minCenterHz && lowerTargetHz <= maxCenterHz) targetCentersHz.push(lowerTargetHz);
if (upperTargetHz >= minCenterHz && upperTargetHz <= maxCenterHz && !targetCentersHz.some((value) => Math.abs(value - upperTargetHz) < 1)) {
targetCentersHz.push(upperTargetHz);
}
if (!targetCentersHz.length) return null;
if (Number.isFinite(preferredCenterHz)) {
let bestCenterHz = targetCentersHz[0];
let bestDistance = Math.abs(bestCenterHz - preferredCenterHz);
for (const targetCenterHz of targetCentersHz.slice(1)) {
const distance = Math.abs(targetCenterHz - preferredCenterHz);
if (distance < bestDistance) {
bestDistance = distance;
bestCenterHz = targetCenterHz;
}
}
return bestCenterHz;
}
return targetCentersHz[0];
}
function requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz = coverageGuardBandwidthHz()) {
if (!data || !Number.isFinite(freqHz)) return null;
const sampleRate = effectiveSpectrumCoverageSpanHz(data.sample_rate);
@@ -1370,7 +1418,13 @@ function sweetSpotCandidateForFrame(data, freqHz, bandwidthHz) {
const requiredLoHz = span.loHz - spectrumCoverageMarginHz;
const requiredHiHz = span.hiHz + spectrumCoverageMarginHz;
if (requiredHiHz - requiredLoHz >= usableSpanHz) {
const fallbackCenterHz = requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz);
const fallbackCenterHz = chooseSweetSpotCenterOutsideOffsetRange(
freqHz,
bandwidthHz,
currentCenterHz - halfUsableSpanHz,
currentCenterHz + halfUsableSpanHz,
requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz),
);
if (!Number.isFinite(fallbackCenterHz)) return null;
return { centerHz: fallbackCenterHz, score: Number.POSITIVE_INFINITY };
}
@@ -1383,7 +1437,13 @@ function sweetSpotCandidateForFrame(data, freqHz, bandwidthHz) {
const minCenterHz = Math.max(evalMinCenterHz, fitMinCenterHz);
const maxCenterHz = Math.min(evalMaxCenterHz, fitMaxCenterHz);
if (!Number.isFinite(minCenterHz) || !Number.isFinite(maxCenterHz) || minCenterHz > maxCenterHz) {
const fallbackCenterHz = requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz);
const fallbackCenterHz = chooseSweetSpotCenterOutsideOffsetRange(
freqHz,
bandwidthHz,
evalMinCenterHz,
evalMaxCenterHz,
requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz),
);
if (!Number.isFinite(fallbackCenterHz)) return null;
return { centerHz: fallbackCenterHz, score: Number.POSITIVE_INFINITY };
}
@@ -1409,6 +1469,9 @@ function sweetSpotCandidateForFrame(data, freqHz, bandwidthHz) {
const endIdx = Math.min(maxIdx, startIdx + usableBins);
const windowLoHz = fullLoHz + (startIdx / maxIdx) * sampleRate;
const candidateCenterHz = windowLoHz + halfUsableSpanHz;
if (!sweetSpotCenterHasRequiredOffset(candidateCenterHz, freqHz, bandwidthHz)) {
continue;
}
const signalLoIdx = Math.max(startIdx, Math.min(endIdx, spectrumBinIndexForHz(data, signalLoHz)));
const signalHiIdx = Math.max(startIdx, Math.min(endIdx, spectrumBinIndexForHz(data, signalHiHz)));
@@ -1429,7 +1492,13 @@ function sweetSpotCandidateForFrame(data, freqHz, bandwidthHz) {
}
if (!Number.isFinite(bestScore) || bestStartIdx == null) {
const fallbackCenterHz = requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz);
const fallbackCenterHz = chooseSweetSpotCenterOutsideOffsetRange(
freqHz,
bandwidthHz,
minCenterHz,
maxCenterHz,
requiredCenterFreqForCoverageInFrame(data, freqHz, bandwidthHz),
);
if (!Number.isFinite(fallbackCenterHz)) return null;
return { centerHz: fallbackCenterHz, score: Number.POSITIVE_INFINITY };
}
@@ -1462,7 +1531,16 @@ function sweetSpotProbeCenters(data, freqHz, bandwidthHz) {
const requiredLoHz = span.loHz - spectrumCoverageMarginHz;
const requiredHiHz = span.hiHz + spectrumCoverageMarginHz;
if (requiredHiHz - requiredLoHz >= usableSpanHz) {
return [alignFreqToRigStep(Math.round(freqHz))];
const probeCenters = [];
const minOffsetHz = sweetSpotMinimumOffsetHz(bandwidthHz);
for (const centerHz of [freqHz - minOffsetHz, freqHz + minOffsetHz]) {
const alignedHz = alignFreqToRigStep(Math.round(centerHz));
if (sweetSpotCenterHasRequiredOffset(alignedHz, freqHz, bandwidthHz)
&& !probeCenters.some((value) => Math.abs(value - alignedHz) < 1)) {
probeCenters.push(alignedHz);
}
}
return probeCenters;
}
const minCenterHz = requiredHiHz - halfUsableSpanHz;
@@ -1476,13 +1554,16 @@ function sweetSpotProbeCenters(data, freqHz, bandwidthHz) {
for (let i = 0; i < points; i++) {
const frac = points === 1 ? 0.5 : i / (points - 1);
const centerHz = alignFreqToRigStep(Math.round(minCenterHz + (maxCenterHz - minCenterHz) * frac));
if (!centers.some((value) => Math.abs(value - centerHz) < 1)) {
if (sweetSpotCenterHasRequiredOffset(centerHz, freqHz, bandwidthHz)
&& !centers.some((value) => Math.abs(value - centerHz) < 1)) {
centers.push(centerHz);
}
}
const currentCenterHz = alignFreqToRigStep(Math.round(Number(data.center_hz)));
if (Number.isFinite(currentCenterHz) && !centers.some((value) => Math.abs(value - currentCenterHz) < 1)) {
if (Number.isFinite(currentCenterHz)
&& sweetSpotCenterHasRequiredOffset(currentCenterHz, freqHz, bandwidthHz)
&& !centers.some((value) => Math.abs(value - currentCenterHz) < 1)) {
centers.push(currentCenterHz);
centers.sort((a, b) => a - b);
}