mirror of
https://github.com/f4exb/sdrangel.git
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237 lines
8.2 KiB
C++
237 lines
8.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_CHANALYZERNG_H
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#define INCLUDE_CHANALYZERNG_H
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#include <QMutex>
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#include <vector>
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#include "dsp/basebandsamplesink.h"
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#include "channel/channelapi.h"
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#include "dsp/interpolator.h"
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#include "dsp/ncof.h"
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#include "dsp/fftcorr2.h"
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#include "dsp/fftfilt.h"
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#include "dsp/phaselockcomplex.h"
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#include "dsp/freqlockcomplex.h"
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#include "audio/audiofifo.h"
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#include "util/message.h"
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#include "util/movingaverage.h"
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#include "chanalyzersettings.h"
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#define ssbFftLen 1024
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class DeviceAPI;
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class ThreadedBasebandSampleSink;
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class DownChannelizer;
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class ChannelAnalyzer : public BasebandSampleSink, public ChannelAPI {
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public:
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class MsgConfigureChannelAnalyzer : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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const ChannelAnalyzerSettings& getSettings() const { return m_settings; }
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bool getForce() const { return m_force; }
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static MsgConfigureChannelAnalyzer* create(const ChannelAnalyzerSettings& settings, bool force)
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{
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return new MsgConfigureChannelAnalyzer(settings, force);
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}
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private:
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ChannelAnalyzerSettings m_settings;
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bool m_force;
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MsgConfigureChannelAnalyzer(const ChannelAnalyzerSettings& settings, bool force) :
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Message(),
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m_settings(settings),
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m_force(force)
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{ }
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};
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class MsgConfigureChannelizer : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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int getSampleRate() const { return m_sampleRate; }
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int getCenterFrequency() const { return m_centerFrequency; }
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static MsgConfigureChannelizer* create(int sampleRate, int centerFrequency)
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{
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return new MsgConfigureChannelizer(sampleRate, centerFrequency);
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}
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private:
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int m_sampleRate;
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int m_centerFrequency;
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MsgConfigureChannelizer(int sampleRate, int centerFrequency) :
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Message(),
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m_sampleRate(sampleRate),
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m_centerFrequency(centerFrequency)
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{ }
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};
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class MsgReportChannelSampleRateChanged : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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static MsgReportChannelSampleRateChanged* create()
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{
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return new MsgReportChannelSampleRateChanged();
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}
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private:
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MsgReportChannelSampleRateChanged() :
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Message()
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{ }
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};
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ChannelAnalyzer(DeviceAPI *deviceAPI);
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virtual ~ChannelAnalyzer();
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virtual void destroy() { delete this; }
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void setSampleSink(BasebandSampleSink* sampleSink) { m_sampleSink = sampleSink; }
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// void configure(MessageQueue* messageQueue,
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// int channelSampleRate,
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// Real Bandwidth,
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// Real LowCutoff,
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// int spanLog2,
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// bool ssb,
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// bool pll,
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// bool fll,
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// unsigned int pllPskOrder);
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DownChannelizer *getChannelizer() { return m_channelizer; }
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int getInputSampleRate() const { return m_inputSampleRate; }
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int getChannelSampleRate() const { return m_settings.m_downSample ? m_settings.m_downSampleRate : m_inputSampleRate; }
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int getDecimation() const { return 1<<m_settings.m_spanLog2; }
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double getMagSq() const { return m_magsq; }
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double getMagSqAvg() const { return (double) m_channelPowerAvg; }
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bool isPllLocked() const { return m_settings.m_pll && m_pll.locked(); }
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Real getPllFrequency() const;
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Real getPllDeltaPhase() const { return m_pll.getDeltaPhi(); }
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Real getPllPhase() const { return m_pll.getPhiHat(); }
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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virtual void stop();
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virtual bool handleMessage(const Message& cmd);
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virtual void getIdentifier(QString& id) { id = objectName(); }
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virtual void getTitle(QString& title) { title = objectName(); }
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virtual qint64 getCenterFrequency() const { return m_settings.m_frequency; }
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virtual QByteArray serialize() const { return QByteArray(); }
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virtual bool deserialize(const QByteArray& data) { (void) data; return false; }
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virtual int getNbSinkStreams() const { return 1; }
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virtual int getNbSourceStreams() const { return 0; }
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virtual qint64 getStreamCenterFrequency(int streamIndex, bool sinkElseSource) const
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{
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(void) streamIndex;
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(void) sinkElseSource;
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return m_settings.m_frequency;
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}
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static const QString m_channelIdURI;
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static const QString m_channelId;
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private:
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DeviceAPI *m_deviceAPI;
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ThreadedBasebandSampleSink* m_threadedChannelizer;
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DownChannelizer* m_channelizer;
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ChannelAnalyzerSettings m_settings;
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int m_inputSampleRate;
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int m_inputFrequencyOffset;
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int m_undersampleCount;
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fftfilt::cmplx m_sum;
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bool m_usb;
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double m_magsq;
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bool m_useInterpolator;
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NCOF m_nco;
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PhaseLockComplex m_pll;
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FreqLockComplex m_fll;
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Interpolator m_interpolator;
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Real m_interpolatorDistance;
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Real m_interpolatorDistanceRemain;
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fftfilt* SSBFilter;
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fftfilt* DSBFilter;
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fftfilt* RRCFilter;
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fftcorr2* m_corr;
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BasebandSampleSink* m_sampleSink;
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SampleVector m_sampleBuffer;
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MovingAverageUtil<double, double, 480> m_channelPowerAvg;
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QMutex m_settingsMutex;
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// void apply(bool force = false);
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void applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force = false);
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void applySettings(const ChannelAnalyzerSettings& settings, bool force = false);
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void setFilters(int sampleRate, float bandwidth, float lowCutoff);
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void processOneSample(Complex& c, fftfilt::cmplx *sideband);
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inline void feedOneSample(const fftfilt::cmplx& s, const fftfilt::cmplx& pll)
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{
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switch (m_settings.m_inputType)
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{
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case ChannelAnalyzerSettings::InputPLL:
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{
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if (m_settings.m_ssb & !m_usb) { // invert spectrum for LSB
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m_sampleBuffer.push_back(Sample(pll.imag()*SDR_RX_SCALEF, pll.real()*SDR_RX_SCALEF));
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} else {
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m_sampleBuffer.push_back(Sample(pll.real()*SDR_RX_SCALEF, pll.imag()*SDR_RX_SCALEF));
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}
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}
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break;
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case ChannelAnalyzerSettings::InputAutoCorr:
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{
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//std::complex<float> a = m_corr->run(s/(SDR_RX_SCALEF/768.0f), 0);
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std::complex<float> a = m_corr->run(s/SDR_RX_SCALEF, 0);
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if (m_settings.m_ssb & !m_usb) { // invert spectrum for LSB
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m_sampleBuffer.push_back(Sample(a.imag(), a.real()));
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} else {
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m_sampleBuffer.push_back(Sample(a.real(), a.imag()));
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}
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}
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break;
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case ChannelAnalyzerSettings::InputSignal:
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default:
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{
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if (m_settings.m_ssb & !m_usb) { // invert spectrum for LSB
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m_sampleBuffer.push_back(Sample(s.imag(), s.real()));
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} else {
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m_sampleBuffer.push_back(Sample(s.real(), s.imag()));
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}
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}
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break;
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}
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}
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};
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#endif // INCLUDE_CHANALYZERNG_H
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