VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-08-15 07:55:26 -04:00
Code Issues Projects Releases Wiki Activity

Frequency Tracker: init sequence fix. Tracking low correction threshold. GUI updates

Browse Source
This commit is contained in:
f4exb
2019-05-06 01:57:41 +02:00
parent 1a5f643705
commit 30725b9651
2 changed files with 21 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
plugins/channelrx/freqtracker/freqtracker.cpp
+14 -12
View File
@@ -80,18 +80,17 @@ FreqTracker::FreqTracker(DeviceSourceAPI *deviceAPI) :
#endif
m_magsq = 0.0;
m_rrcFilter = new fftfilt(m_settings.m_rfBandwidth / m_channelSampleRate, 2*1024);
m_pll.computeCoefficients(0.002f, 0.5f, 10.0f); // bandwidth, damping factor, loop gain
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
m_channelizer = new DownChannelizer(this);
m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
m_deviceAPI->addThreadedSink(m_threadedChannelizer);
m_deviceAPI->addChannelAPI(this);
m_pll.computeCoefficients(0.002f, 0.5f, 10.0f); // bandwidth, damping factor, loop gain
m_rrcFilter = new fftfilt(m_settings.m_rfBandwidth / m_channelSampleRate, 2*1024);
m_networkManager = new QNetworkAccessManager();
connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
}
FreqTracker::~FreqTracker()
@@ -760,19 +759,22 @@ void FreqTracker::tick()
{
uint32_t decayDivider = 1000.0 * m_settings.m_alphaEMA;
int decayAmount = m_channelSampleRate < decayDivider ? 1 : m_channelSampleRate / decayDivider;
int trim = m_channelSampleRate / 1000;
if (m_lastCorrAbs < decayAmount)
{
FreqTrackerSettings settings = m_settings;
settings.m_inputFrequencyOffset += m_avgDeltaFreq;
m_lastCorrAbs = m_avgDeltaFreq < 0 ? m_avgDeltaFreq : m_avgDeltaFreq;
applySettings(settings);
m_lastCorrAbs = m_avgDeltaFreq < 0 ? -m_avgDeltaFreq : m_avgDeltaFreq;
if (m_lastCorrAbs > trim)
{
FreqTrackerSettings settings = m_settings;
settings.m_inputFrequencyOffset += m_avgDeltaFreq;
applySettings(settings);
}
}
else
{
if (m_lastCorrAbs >= decayAmount) {
m_lastCorrAbs -= decayAmount;
}
m_lastCorrAbs -= decayAmount;
}
}