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added SNR meter smoothing

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AlexandreRouma
2023-07-10 04:41:34 +02:00
parent 8d05c1e181
commit 168e28cc44
4 changed files with 63 additions and 18 deletions
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26
core/src/gui/widgets/waterfall.cpp
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@@ -886,15 +886,22 @@ namespace ImGui {
// Apply smoothing if enabled
if (fftSmoothing && latestFFT != NULL && smoothingBuf != NULL && fftLines != 0) {
std::lock_guard<std::mutex> lck2(smoothingBufMtx);
volk_32f_s32f_multiply_32f(latestFFT, latestFFT, smoothingAlpha, dataWidth);
volk_32f_s32f_multiply_32f(smoothingBuf, smoothingBuf, smoothingBeta, dataWidth);
volk_32f_s32f_multiply_32f(latestFFT, latestFFT, fftSmoothingAlpha, dataWidth);
volk_32f_s32f_multiply_32f(smoothingBuf, smoothingBuf, fftSmoothingBeta, dataWidth);
volk_32f_x2_add_32f(smoothingBuf, latestFFT, smoothingBuf, dataWidth);
memcpy(latestFFT, smoothingBuf, dataWidth * sizeof(float));
}
if (selectedVFO != "" && vfos.size() > 0) {
float dummy;
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, selectedVFOSNR);
if (snrSmoothing) {
float newSNR = 0.0f;
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, newSNR);
selectedVFOSNR = (snrSmoothingBeta*selectedVFOSNR) + (snrSmoothingAlpha*newSNR);
}
else {
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, selectedVFOSNR);
}
}
// If FFT hold is enabled, update it
@@ -1155,8 +1162,17 @@ namespace ImGui {
void WaterFall::setFFTSmoothingSpeed(float speed) {
std::lock_guard<std::mutex> lck(smoothingBufMtx);
smoothingAlpha = speed;
smoothingBeta = 1.0f - speed;
fftSmoothingAlpha = speed;
fftSmoothingBeta = 1.0f - speed;
}
void WaterFall::setSNRSmoothing(bool enabled) {
snrSmoothing = enabled;
}
void WaterFall::setSNRSmoothingSpeed(float speed) {
snrSmoothingAlpha = speed;
snrSmoothingBeta = 1.0f - speed;
}
float* WaterFall::acquireLatestFFT(int& width) {