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ChannelAnalyzerNG: adjust PLL loop parameters

This commit is contained in:
f4exb 2018-05-15 09:17:54 +02:00
parent cf5901f82c
commit 7f3bec34c9

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@ -1,279 +1,280 @@
/////////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB // // Copyright (C) 2017 Edouard Griffiths, F4EXB //
// // // //
// This program is free software; you can redistribute it and/or modify // // 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 // // it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or // // the Free Software Foundation as version 3 of the License, or //
// // // //
// This program is distributed in the hope that it will be useful, // // This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of // // but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. // // GNU General Public License V3 for more details. //
// // // //
// You should have received a copy of the GNU General Public License // // You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. // // along with this program. If not, see <http://www.gnu.org/licenses/>. //
/////////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////
#include "chanalyzerng.h" #include "chanalyzerng.h"
#include <QTime> #include <QTime>
#include <QDebug> #include <QDebug>
#include <stdio.h> #include <stdio.h>
#include "device/devicesourceapi.h" #include "device/devicesourceapi.h"
#include "audio/audiooutput.h" #include "audio/audiooutput.h"
#include "dsp/threadedbasebandsamplesink.h" #include "dsp/threadedbasebandsamplesink.h"
#include "dsp/downchannelizer.h" #include "dsp/downchannelizer.h"
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelAnalyzer, Message) MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelAnalyzer, Message)
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelizer, Message) MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelizer, Message)
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgReportChannelSampleRateChanged, Message) MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgReportChannelSampleRateChanged, Message)
const QString ChannelAnalyzerNG::m_channelIdURI = "sdrangel.channel.chanalyzerng"; const QString ChannelAnalyzerNG::m_channelIdURI = "sdrangel.channel.chanalyzerng";
const QString ChannelAnalyzerNG::m_channelId = "ChannelAnalyzerNG"; const QString ChannelAnalyzerNG::m_channelId = "ChannelAnalyzerNG";
ChannelAnalyzerNG::ChannelAnalyzerNG(DeviceSourceAPI *deviceAPI) : ChannelAnalyzerNG::ChannelAnalyzerNG(DeviceSourceAPI *deviceAPI) :
ChannelSinkAPI(m_channelIdURI), ChannelSinkAPI(m_channelIdURI),
m_deviceAPI(deviceAPI), m_deviceAPI(deviceAPI),
m_sampleSink(0), m_sampleSink(0),
m_settingsMutex(QMutex::Recursive) m_settingsMutex(QMutex::Recursive)
{ {
setObjectName(m_channelId); setObjectName(m_channelId);
m_undersampleCount = 0; m_undersampleCount = 0;
m_sum = 0; m_sum = 0;
m_usb = true; m_usb = true;
m_magsq = 0; m_magsq = 0;
m_useInterpolator = false; m_useInterpolator = false;
m_interpolatorDistance = 1.0f; m_interpolatorDistance = 1.0f;
m_interpolatorDistanceRemain = 0.0f; m_interpolatorDistanceRemain = 0.0f;
SSBFilter = new fftfilt(m_config.m_LowCutoff / m_config.m_inputSampleRate, m_config.m_Bandwidth / m_config.m_inputSampleRate, ssbFftLen); SSBFilter = new fftfilt(m_config.m_LowCutoff / m_config.m_inputSampleRate, m_config.m_Bandwidth / m_config.m_inputSampleRate, ssbFftLen);
DSBFilter = new fftfilt(m_config.m_Bandwidth / m_config.m_inputSampleRate, 2*ssbFftLen); DSBFilter = new fftfilt(m_config.m_Bandwidth / m_config.m_inputSampleRate, 2*ssbFftLen);
m_pll.computeCoefficients(0.05f, 0.707f, 1000.0f); // bandwidth, damping factor, loop gain //m_pll.computeCoefficients(0.05f, 0.707f, 1000.0f); // bandwidth, damping factor, loop gain
m_pll.computeCoefficients(0.002f, 0.5f, 10.0f); // bandwidth, damping factor, loop gain
apply(true);
apply(true);
m_channelizer = new DownChannelizer(this);
m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this); m_channelizer = new DownChannelizer(this);
m_deviceAPI->addThreadedSink(m_threadedChannelizer); m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
m_deviceAPI->addChannelAPI(this); m_deviceAPI->addThreadedSink(m_threadedChannelizer);
} m_deviceAPI->addChannelAPI(this);
}
ChannelAnalyzerNG::~ChannelAnalyzerNG()
{ ChannelAnalyzerNG::~ChannelAnalyzerNG()
m_deviceAPI->removeChannelAPI(this); {
m_deviceAPI->removeThreadedSink(m_threadedChannelizer); m_deviceAPI->removeChannelAPI(this);
delete m_threadedChannelizer; m_deviceAPI->removeThreadedSink(m_threadedChannelizer);
delete m_channelizer; delete m_threadedChannelizer;
delete SSBFilter; delete m_channelizer;
delete DSBFilter; delete SSBFilter;
} delete DSBFilter;
}
void ChannelAnalyzerNG::configure(MessageQueue* messageQueue,
int channelSampleRate, void ChannelAnalyzerNG::configure(MessageQueue* messageQueue,
Real Bandwidth, int channelSampleRate,
Real LowCutoff, Real Bandwidth,
int spanLog2, Real LowCutoff,
bool ssb, int spanLog2,
bool pll, bool ssb,
unsigned int pllPskOrder) bool pll,
{ unsigned int pllPskOrder)
Message* cmd = MsgConfigureChannelAnalyzer::create(channelSampleRate, Bandwidth, LowCutoff, spanLog2, ssb, pll, pllPskOrder); {
messageQueue->push(cmd); Message* cmd = MsgConfigureChannelAnalyzer::create(channelSampleRate, Bandwidth, LowCutoff, spanLog2, ssb, pll, pllPskOrder);
} messageQueue->push(cmd);
}
void ChannelAnalyzerNG::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly __attribute__((unused)))
{ void ChannelAnalyzerNG::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly __attribute__((unused)))
fftfilt::cmplx *sideband = 0; {
Complex ci; fftfilt::cmplx *sideband = 0;
Complex ci;
m_settingsMutex.lock();
m_settingsMutex.lock();
for(SampleVector::const_iterator it = begin; it < end; ++it)
{ for(SampleVector::const_iterator it = begin; it < end; ++it)
Complex c(it->real(), it->imag()); {
c *= m_nco.nextIQ(); Complex c(it->real(), it->imag());
c *= m_nco.nextIQ();
if (m_useInterpolator)
{ if (m_useInterpolator)
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci)) {
{ if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci))
processOneSample(ci, sideband); {
m_interpolatorDistanceRemain += m_interpolatorDistance; processOneSample(ci, sideband);
} m_interpolatorDistanceRemain += m_interpolatorDistance;
} }
else }
{ else
processOneSample(c, sideband); {
} processOneSample(c, sideband);
} }
}
if(m_sampleSink != 0)
{ if(m_sampleSink != 0)
m_sampleSink->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), m_running.m_ssb); // m_ssb = positive only {
} m_sampleSink->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), m_running.m_ssb); // m_ssb = positive only
}
m_sampleBuffer.clear();
m_sampleBuffer.clear();
m_settingsMutex.unlock();
} m_settingsMutex.unlock();
}
void ChannelAnalyzerNG::start()
{ void ChannelAnalyzerNG::start()
} {
}
void ChannelAnalyzerNG::stop()
{ void ChannelAnalyzerNG::stop()
} {
}
bool ChannelAnalyzerNG::handleMessage(const Message& cmd)
{ bool ChannelAnalyzerNG::handleMessage(const Message& cmd)
qDebug() << "ChannelAnalyzerNG::handleMessage: " << cmd.getIdentifier(); {
qDebug() << "ChannelAnalyzerNG::handleMessage: " << cmd.getIdentifier();
if (DownChannelizer::MsgChannelizerNotification::match(cmd))
{ if (DownChannelizer::MsgChannelizerNotification::match(cmd))
DownChannelizer::MsgChannelizerNotification& notif = (DownChannelizer::MsgChannelizerNotification&) cmd; {
DownChannelizer::MsgChannelizerNotification& notif = (DownChannelizer::MsgChannelizerNotification&) cmd;
m_config.m_inputSampleRate = notif.getSampleRate();
m_config.m_frequency = notif.getFrequencyOffset(); m_config.m_inputSampleRate = notif.getSampleRate();
m_config.m_frequency = notif.getFrequencyOffset();
qDebug() << "ChannelAnalyzerNG::handleMessage: MsgChannelizerNotification:"
<< " m_sampleRate: " << m_config.m_inputSampleRate qDebug() << "ChannelAnalyzerNG::handleMessage: MsgChannelizerNotification:"
<< " frequencyOffset: " << m_config.m_frequency; << " m_sampleRate: " << m_config.m_inputSampleRate
<< " frequencyOffset: " << m_config.m_frequency;
apply();
apply();
if (getMessageQueueToGUI())
{ if (getMessageQueueToGUI())
MsgReportChannelSampleRateChanged *msg = MsgReportChannelSampleRateChanged::create(); {
getMessageQueueToGUI()->push(msg); MsgReportChannelSampleRateChanged *msg = MsgReportChannelSampleRateChanged::create();
} getMessageQueueToGUI()->push(msg);
}
return true;
} return true;
else if (MsgConfigureChannelizer::match(cmd)) }
{ else if (MsgConfigureChannelizer::match(cmd))
MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd; {
m_channelizer->configure(m_channelizer->getInputMessageQueue(), MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
cfg.getSampleRate(), m_channelizer->configure(m_channelizer->getInputMessageQueue(),
cfg.getCenterFrequency()); cfg.getSampleRate(),
return true; cfg.getCenterFrequency());
} return true;
else if (MsgConfigureChannelAnalyzer::match(cmd)) }
{ else if (MsgConfigureChannelAnalyzer::match(cmd))
MsgConfigureChannelAnalyzer& cfg = (MsgConfigureChannelAnalyzer&) cmd; {
MsgConfigureChannelAnalyzer& cfg = (MsgConfigureChannelAnalyzer&) cmd;
m_config.m_channelSampleRate = cfg.getChannelSampleRate();
m_config.m_Bandwidth = cfg.getBandwidth(); m_config.m_channelSampleRate = cfg.getChannelSampleRate();
m_config.m_LowCutoff = cfg.getLoCutoff(); m_config.m_Bandwidth = cfg.getBandwidth();
m_config.m_spanLog2 = cfg.getSpanLog2(); m_config.m_LowCutoff = cfg.getLoCutoff();
m_config.m_ssb = cfg.getSSB(); m_config.m_spanLog2 = cfg.getSpanLog2();
m_config.m_pll = cfg.getPLL(); m_config.m_ssb = cfg.getSSB();
m_config.m_pllPskOrder = cfg.getPLLPSKOrder(); m_config.m_pll = cfg.getPLL();
m_config.m_pllPskOrder = cfg.getPLLPSKOrder();
qDebug() << "ChannelAnalyzerNG::handleMessage: MsgConfigureChannelAnalyzer:"
<< " m_channelSampleRate: " << m_config.m_channelSampleRate qDebug() << "ChannelAnalyzerNG::handleMessage: MsgConfigureChannelAnalyzer:"
<< " m_Bandwidth: " << m_config.m_Bandwidth << " m_channelSampleRate: " << m_config.m_channelSampleRate
<< " m_LowCutoff: " << m_config.m_LowCutoff << " m_Bandwidth: " << m_config.m_Bandwidth
<< " m_spanLog2: " << m_config.m_spanLog2 << " m_LowCutoff: " << m_config.m_LowCutoff
<< " m_ssb: " << m_config.m_ssb << " m_spanLog2: " << m_config.m_spanLog2
<< " m_pll: " << m_config.m_pll << " m_ssb: " << m_config.m_ssb
<< " m_pllPskOrder: " << m_config.m_pllPskOrder; << " m_pll: " << m_config.m_pll
<< " m_pllPskOrder: " << m_config.m_pllPskOrder;
apply();
return true; apply();
} return true;
else }
{ else
if (m_sampleSink != 0) {
{ if (m_sampleSink != 0)
return m_sampleSink->handleMessage(cmd); {
} return m_sampleSink->handleMessage(cmd);
else }
{ else
return false; {
} return false;
} }
} }
}
void ChannelAnalyzerNG::apply(bool force)
{ void ChannelAnalyzerNG::apply(bool force)
if ((m_running.m_frequency != m_config.m_frequency) || {
(m_running.m_inputSampleRate != m_config.m_inputSampleRate) || if ((m_running.m_frequency != m_config.m_frequency) ||
force) (m_running.m_inputSampleRate != m_config.m_inputSampleRate) ||
{ force)
m_nco.setFreq(-m_config.m_frequency, m_config.m_inputSampleRate); {
} m_nco.setFreq(-m_config.m_frequency, m_config.m_inputSampleRate);
}
if ((m_running.m_inputSampleRate != m_config.m_inputSampleRate) ||
(m_running.m_channelSampleRate != m_config.m_channelSampleRate) || if ((m_running.m_inputSampleRate != m_config.m_inputSampleRate) ||
force) (m_running.m_channelSampleRate != m_config.m_channelSampleRate) ||
{ force)
m_settingsMutex.lock(); {
m_interpolator.create(16, m_config.m_inputSampleRate, m_config.m_inputSampleRate / 2.2); m_settingsMutex.lock();
m_interpolatorDistanceRemain = 0.0f; m_interpolator.create(16, m_config.m_inputSampleRate, m_config.m_inputSampleRate / 2.2);
m_interpolatorDistance = (Real) m_config.m_inputSampleRate / (Real) m_config.m_channelSampleRate; m_interpolatorDistanceRemain = 0.0f;
m_useInterpolator = (m_config.m_inputSampleRate != m_config.m_channelSampleRate); // optim m_interpolatorDistance = (Real) m_config.m_inputSampleRate / (Real) m_config.m_channelSampleRate;
m_settingsMutex.unlock(); m_useInterpolator = (m_config.m_inputSampleRate != m_config.m_channelSampleRate); // optim
} m_settingsMutex.unlock();
}
if ((m_running.m_channelSampleRate != m_config.m_channelSampleRate) ||
(m_running.m_Bandwidth != m_config.m_Bandwidth) || if ((m_running.m_channelSampleRate != m_config.m_channelSampleRate) ||
(m_running.m_LowCutoff != m_config.m_LowCutoff) || (m_running.m_Bandwidth != m_config.m_Bandwidth) ||
force) (m_running.m_LowCutoff != m_config.m_LowCutoff) ||
{ force)
float bandwidth = m_config.m_Bandwidth; {
float lowCutoff = m_config.m_LowCutoff; float bandwidth = m_config.m_Bandwidth;
float lowCutoff = m_config.m_LowCutoff;
if (bandwidth < 0)
{ if (bandwidth < 0)
bandwidth = -bandwidth; {
lowCutoff = -lowCutoff; bandwidth = -bandwidth;
m_usb = false; lowCutoff = -lowCutoff;
} m_usb = false;
else }
{ else
m_usb = true; {
} m_usb = true;
}
if (bandwidth < 100.0f)
{ if (bandwidth < 100.0f)
bandwidth = 100.0f; {
lowCutoff = 0; bandwidth = 100.0f;
} lowCutoff = 0;
}
m_settingsMutex.lock();
m_settingsMutex.lock();
SSBFilter->create_filter(lowCutoff / m_config.m_channelSampleRate, bandwidth / m_config.m_channelSampleRate);
DSBFilter->create_dsb_filter(bandwidth / m_config.m_channelSampleRate); SSBFilter->create_filter(lowCutoff / m_config.m_channelSampleRate, bandwidth / m_config.m_channelSampleRate);
DSBFilter->create_dsb_filter(bandwidth / m_config.m_channelSampleRate);
m_settingsMutex.unlock();
} m_settingsMutex.unlock();
}
if (m_running.m_pll != m_config.m_pll || force)
{ if (m_running.m_pll != m_config.m_pll || force)
if (m_config.m_pll) { {
m_pll.reset(); if (m_config.m_pll) {
} m_pll.reset();
} }
}
if (m_running.m_pll != m_config.m_pll || force)
{ if (m_running.m_pll != m_config.m_pll || force)
m_pll.setPskOrder(m_config.m_pllPskOrder); {
} m_pll.setPskOrder(m_config.m_pllPskOrder);
}
m_running.m_frequency = m_config.m_frequency;
m_running.m_channelSampleRate = m_config.m_channelSampleRate; m_running.m_frequency = m_config.m_frequency;
m_running.m_inputSampleRate = m_config.m_inputSampleRate; m_running.m_channelSampleRate = m_config.m_channelSampleRate;
m_running.m_Bandwidth = m_config.m_Bandwidth; m_running.m_inputSampleRate = m_config.m_inputSampleRate;
m_running.m_LowCutoff = m_config.m_LowCutoff; m_running.m_Bandwidth = m_config.m_Bandwidth;
m_running.m_LowCutoff = m_config.m_LowCutoff;
//m_settingsMutex.lock();
m_running.m_spanLog2 = m_config.m_spanLog2; //m_settingsMutex.lock();
m_running.m_ssb = m_config.m_ssb; m_running.m_spanLog2 = m_config.m_spanLog2;
m_running.m_pll = m_config.m_pll; m_running.m_ssb = m_config.m_ssb;
m_running.m_pllPskOrder = m_config.m_pllPskOrder; m_running.m_pll = m_config.m_pll;
//m_settingsMutex.unlock(); m_running.m_pllPskOrder = m_config.m_pllPskOrder;
} //m_settingsMutex.unlock();
}