mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-08 17:46:03 -05:00
141 lines
4.5 KiB
C++
141 lines
4.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2019 Edouard Griffiths, F4EXB //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef INCLUDE_FREQTRACKERSINK_H
|
|
#define INCLUDE_FREQTRACKERSINK_H
|
|
|
|
#include <QObject>
|
|
|
|
#include <vector>
|
|
|
|
#include "dsp/channelsamplesink.h"
|
|
#include "dsp/ncof.h"
|
|
#include "dsp/interpolator.h"
|
|
#include "util/movingaverage.h"
|
|
#include "dsp/agc.h"
|
|
#include "dsp/bandpass.h"
|
|
#include "dsp/lowpass.h"
|
|
#include "dsp/phaselockcomplex.h"
|
|
#include "dsp/freqlockcomplex.h"
|
|
#include "util/message.h"
|
|
#include "util/doublebufferfifo.h"
|
|
|
|
#include "freqtrackersettings.h"
|
|
|
|
class fftfilt;
|
|
class MessageQueue;
|
|
class QTimer;
|
|
|
|
class FreqTrackerSink : public QObject, public ChannelSampleSink {
|
|
Q_OBJECT
|
|
public:
|
|
FreqTrackerSink();
|
|
~FreqTrackerSink();
|
|
|
|
virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end);
|
|
|
|
void applySettings(const FreqTrackerSettings& settings, bool force = false);
|
|
void applyChannelSettings(int sinkSampleRate, int channelSampleRate, int channelFrequencyOffset, bool force = false);
|
|
void setMessageQueueToInput(MessageQueue *messageQueue) { m_messageQueueToInput = messageQueue;}
|
|
|
|
uint32_t getSampleRate() const { return m_sinkSampleRate; }
|
|
double getMagSq() const { return m_magsq; }
|
|
bool getSquelchOpen() const { return m_squelchOpen; }
|
|
bool getPllLocked() const { return (m_settings.m_trackerType == FreqTrackerSettings::TrackerPLL) && m_pll.locked(); }
|
|
Real getFrequency() const;
|
|
Real getAvgDeltaFreq() const { return m_avgDeltaFreq; }
|
|
|
|
void getMagSqLevels(double& avg, double& peak, int& nbSamples)
|
|
{
|
|
if (m_magsqCount > 0)
|
|
{
|
|
m_magsq = m_magsqSum / m_magsqCount;
|
|
m_magSqLevelStore.m_magsq = m_magsq;
|
|
m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
|
|
}
|
|
|
|
avg = m_magSqLevelStore.m_magsq;
|
|
peak = m_magSqLevelStore.m_magsqPeak;
|
|
nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
|
|
|
|
m_magsqSum = 0.0f;
|
|
m_magsqPeak = 0.0f;
|
|
m_magsqCount = 0;
|
|
}
|
|
|
|
private:
|
|
struct MagSqLevelsStore
|
|
{
|
|
MagSqLevelsStore() :
|
|
m_magsq(1e-12),
|
|
m_magsqPeak(1e-12)
|
|
{}
|
|
double m_magsq;
|
|
double m_magsqPeak;
|
|
};
|
|
|
|
enum RateState {
|
|
RSInitialFill,
|
|
RSRunning
|
|
};
|
|
|
|
FreqTrackerSettings m_settings;
|
|
|
|
int m_channelSampleRate;
|
|
int m_inputFrequencyOffset;
|
|
uint32_t m_sinkSampleRate;
|
|
|
|
NCOF m_nco;
|
|
PhaseLockComplex m_pll;
|
|
FreqLockComplex m_fll;
|
|
Interpolator m_interpolator;
|
|
Real m_interpolatorDistance;
|
|
Real m_interpolatorDistanceRemain;
|
|
|
|
fftfilt* m_rrcFilter;
|
|
|
|
Real m_squelchLevel;
|
|
uint32_t m_squelchCount;
|
|
bool m_squelchOpen;
|
|
uint32_t m_squelchGate; //!< Squelch gate in samples
|
|
double m_magsq;
|
|
double m_magsqSum;
|
|
double m_magsqPeak;
|
|
int m_magsqCount;
|
|
MagSqLevelsStore m_magSqLevelStore;
|
|
|
|
MovingAverageUtil<Real, double, 16> m_movingAverage;
|
|
|
|
const QTimer *m_timer;
|
|
bool m_timerConnected;
|
|
uint32_t m_tickCount;
|
|
int m_lastCorrAbs;
|
|
Real m_avgDeltaFreq;
|
|
|
|
MessageQueue *m_messageQueueToInput;
|
|
|
|
MessageQueue *getMessageQueueToInput() { return m_messageQueueToInput; }
|
|
void setInterpolator();
|
|
void connectTimer();
|
|
void disconnectTimer();
|
|
void processOneSample(Complex &ci);
|
|
|
|
private slots:
|
|
void tick();
|
|
};
|
|
|
|
#endif // INCLUDE_FREQTRACKERSINK_H
|