diff options
Diffstat (limited to 'gr-qtgui/src/lib/spectrumdisplayform.cc')
| -rw-r--r-- | gr-qtgui/src/lib/spectrumdisplayform.cc | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/gr-qtgui/src/lib/spectrumdisplayform.cc b/gr-qtgui/src/lib/spectrumdisplayform.cc index d7c593e2f..91abbd36f 100644 --- a/gr-qtgui/src/lib/spectrumdisplayform.cc +++ b/gr-qtgui/src/lib/spectrumdisplayform.cc @@ -122,7 +122,7 @@ SpectrumDisplayForm::newFrequencyData( const SpectrumUpdateEvent* spectrumUpdate const double* realTimeDomainDataPoints = spectrumUpdateEvent->getRealTimeDomainPoints(); const double* imagTimeDomainDataPoints = spectrumUpdateEvent->getImagTimeDomainPoints(); const uint64_t numTimeDomainDataPoints = spectrumUpdateEvent->getNumTimeDomainDataPoints(); - const timespec dataTimestamp = spectrumUpdateEvent->getDataTimestamp();; + const timespec dataTimestamp = spectrumUpdateEvent->getDataTimestamp(); const bool repeatDataFlag = spectrumUpdateEvent->getRepeatDataFlag(); const bool lastOfMultipleUpdatesFlag = spectrumUpdateEvent->getLastOfMultipleUpdateFlag(); const timespec generatedTimestamp = spectrumUpdateEvent->getEventGeneratedTimestamp(); @@ -136,14 +136,7 @@ SpectrumDisplayForm::newFrequencyData( const SpectrumUpdateEvent* spectrumUpdate // Run this twice to perform the fftshift operation on the data here as well for(uint64_t point = 0; point < numFFTDataPoints/2; point++){ - // Calculate dBm - // 50 ohm load assumption - // 10 * log10 (v^2 / (2 * 50.0 * .001)) = 10 * log10( v^2 * 10) - // 75 ohm load assumption - // 10 * log10 (v^2 / (2 * 75.0 * .001)) = 10 * log10( v^2 * 15) - - // perform scaling here - std::complex<float> pt = (*complexDataPointsPtr) / std::complex<float>((float)numFFTDataPoints); + std::complex<float> pt = (*complexDataPointsPtr) / (float)numFFTDataPoints; *realFFTDataPointsPtr = 10.0*log10((pt.real() * pt.real() + pt.imag()*pt.imag()) + 1e-20); complexDataPointsPtr++; @@ -154,7 +147,7 @@ SpectrumDisplayForm::newFrequencyData( const SpectrumUpdateEvent* spectrumUpdate // second half of the plotted data complexDataPointsPtr = complexDataPoints; for(uint64_t point = 0; point < numFFTDataPoints/2; point++){ - std::complex<float> pt = (*complexDataPointsPtr) / std::complex<float>((float)numFFTDataPoints); + std::complex<float> pt = (*complexDataPointsPtr) / (float)numFFTDataPoints; *realFFTDataPointsPtr = 10.0*log10((pt.real() * pt.real() + pt.imag()*pt.imag()) + 1e-20); complexDataPointsPtr++; @@ -178,9 +171,7 @@ SpectrumDisplayForm::newFrequencyData( const SpectrumUpdateEvent* spectrumUpdate // Calculate the frequency relative to the local bw, adjust for _startFrequency later _peakFrequency = (static_cast<float>(number) * fft_bin_size); _peakAmplitude = _realFFTDataPoints[number]; - // _peakBin = number; } - // sum (for mean) sumMean += _realFFTDataPoints[number]; } @@ -232,15 +223,15 @@ SpectrumDisplayForm::newFrequencyData( const SpectrumUpdateEvent* spectrumUpdate d_update_time, dataTimestamp, spectrumUpdateEvent->getDroppedFFTFrames()); } + /* if((QGLFormat::hasOpenGL()) && (_useOpenGL)) { if( _openGLWaterfall3DFlag == 1 && (tabindex == d_plot_waterfall3d)) { - /* _waterfall3DDisplayPlot->PlotNewData(_realFFTDataPoints, numFFTDataPoints, d_update_time, dataTimestamp, spectrumUpdateEvent->getDroppedFFTFrames()); - */ } } + */ } |