mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-18 14:21:49 -05:00
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2020, 2023 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// Copyright (C) 2020, 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// //
|
|
// 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 SDRBASE_DSP_MORSEDEMOD_H_
|
|
#define SDRBASE_DSP_MORSEDEMOD_H_
|
|
|
|
#include <QString>
|
|
|
|
#include "dsp/nco.h"
|
|
#include "dsp/firfilter.h"
|
|
#include "util/movingaverage.h"
|
|
#include "util/message.h"
|
|
#include "util/messagequeue.h"
|
|
|
|
#include "export.h"
|
|
|
|
// Morse code demodulator for use with VOR and ILS
|
|
class SDRBASE_API MorseDemod {
|
|
|
|
public:
|
|
class SDRBASE_API MsgReportIdent : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
QString getIdent() const { return m_ident; }
|
|
|
|
static MsgReportIdent* create(QString ident)
|
|
{
|
|
return new MsgReportIdent(ident);
|
|
}
|
|
|
|
private:
|
|
QString m_ident;
|
|
|
|
MsgReportIdent(QString ident) :
|
|
Message(),
|
|
m_ident(ident)
|
|
{
|
|
}
|
|
};
|
|
|
|
MorseDemod();
|
|
void processOneSample(const Complex &magc);
|
|
void applyChannelSettings(int channelSampleRate);
|
|
void applySettings(int identThreshold);
|
|
void reset();
|
|
void setMessageQueueToChannel(MessageQueue *messageQueue) { m_messageQueueToChannel = messageQueue; }
|
|
MessageQueue *getMessageQueueToChannel() const { return m_messageQueueToChannel; }
|
|
|
|
private:
|
|
|
|
MessageQueue *m_messageQueueToChannel;
|
|
NCO m_ncoIdent;
|
|
Bandpass<Complex> m_bandpassIdent;
|
|
Lowpass<Complex> m_lowpassIdent;
|
|
MovingAverageUtilVar<Real, double> m_movingAverageIdent;
|
|
static const int m_identBins = 20;
|
|
Real m_identMaxs[m_identBins];
|
|
Real m_identNoise;
|
|
int m_binSampleCnt;
|
|
int m_binCnt;
|
|
int m_samplesPerDot7wpm;
|
|
int m_samplesPerDot10wpm;
|
|
int m_prevBit;
|
|
int m_bitTime;
|
|
QString m_ident;
|
|
|
|
int m_identThreshold;
|
|
|
|
};
|
|
|
|
#endif /* SDRBASE_DSP_MORSEDEMOD_H_ */
|
|
|