59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
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#include "receivercaldialog.h"
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ReceiverCalDialog::ReceiverCalDialog(Device *dev)
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: AmplitudeCalDialog(dev)
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{
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setWindowTitle("Receiver Calibration Dialog");
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LoadFromDevice();
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connect(dev, &Device::SpectrumResultReceived, [=](Protocol::SpectrumAnalyzerResult res) {
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if(res.pointNum == 1) {
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// store result in center of sweep of 3 points
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port1_result = 20*log10(res.port1);
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port2_result = 20*log10(res.port2);
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}
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});
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}
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void ReceiverCalDialog::SelectedPoint(double frequency, bool port2)
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{
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if(frequency > 0) {
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Protocol::PacketInfo p;
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p.type = Protocol::PacketType::SpectrumAnalyzerSettings;
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p.spectrumSettings.RBW = 10000;
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p.spectrumSettings.UseDFT = 0;
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// setup 3 points centered around the measurement frequency (zero span not supported yet)
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p.spectrumSettings.f_stop = frequency + 1.0;
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p.spectrumSettings.f_start = frequency - 1.0;
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p.spectrumSettings.pointNum = 3;
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p.spectrumSettings.Detector = 0;
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p.spectrumSettings.SignalID = 1;
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p.spectrumSettings.WindowType = 3;
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p.spectrumSettings.applyReceiverCorrection = 0;
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dev->SendPacket(p);
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} else {
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// invalid frequency, disable
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dev->SetIdle();
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}
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}
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void ReceiverCalDialog::AmplitudeChanged(AmplitudeCalDialog::CorrectionPoint &point, bool port2)
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{
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auto *factor = port2 ? &point.correctionPort2 : &point.correctionPort1;
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const auto *amplitude = port2 ? &point.amplitudePort2 : &point.amplitudePort1;
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const auto *measured = port2 ? &port2_result : &port1_result;
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// calculate correction factor by comparing expected with measured amplitude
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*factor = (*measured - *amplitude) * 100.0;
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}
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void ReceiverCalDialog::UpdateAmplitude(AmplitudeCalDialog::CorrectionPoint &point)
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{
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// This point was just received from the device, it is not possible to know the actual amplitude because the
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// applied power level during the calibration is not saved (only the correction value). This is not a problem
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// because the correction value is still valid but the missing values look weird in the GUI
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// TODO change this?
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point.amplitudePort1 = std::numeric_limits<double>::quiet_NaN();
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point.amplitudePort2 = std::numeric_limits<double>::quiet_NaN();
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point.port1set = true;
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point.port2set = true;
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}
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