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Code Issues Projects Releases Wiki Activity

Tidy up

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This commit is contained in:
srcejon
2023-09-01 20:09:37 +01:00
parent 1ec01ab2d9
commit 01ab3e440e
14 changed files with 173 additions and 173 deletions
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plugins/channeltx/modrtty/rttymodsource.cpp
+45 -46
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@@ -29,10 +29,10 @@
RttyModSource::RttyModSource() :
m_channelSampleRate(48000),
m_channelFrequencyOffset(0),
m_spectrumRate(8000),
m_audioPhase(0.0f),
m_spectrumRate(2000),
m_fmPhase(0.0),
m_spectrumSink(nullptr),
m_specSampleBufferIndex(0),
m_magsq(0.0),
m_levelCalcCount(0),
m_peakLevel(0.0f),
@@ -48,6 +48,7 @@ RttyModSource::RttyModSource() :
m_demodBuffer.resize(1<<12);
m_demodBufferFill = 0;
m_specSampleBuffer.resize(m_specSampleBufferSize);
m_interpolatorDistanceRemain = 0;
m_interpolatorConsumed = false;
m_interpolatorDistance = (Real)m_channelSampleRate / (Real)m_spectrumRate;
@@ -98,21 +99,22 @@ void RttyModSource::pullOne(Sample& sample)
sample.m_imag = (FixReal) (ci.imag() * SDR_TX_SCALEF);
}
void RttyModSource::sampleToSpectrum(Real sample)
void RttyModSource::sampleToSpectrum(Complex sample)
{
if (m_spectrumSink)
{
Complex out;
Complex in;
in.real(sample);
in.imag(0.0f);
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, in, &out))
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, sample, &out))
{
sample = std::real(out);
m_sampleBuffer.push_back(Sample(sample * 0.891235351562f * SDR_TX_SCALEF, 0.0f));
m_spectrumSink->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), true);
m_sampleBuffer.clear();
m_interpolatorDistanceRemain += m_interpolatorDistance;
Real r = std::real(out) * SDR_TX_SCALEF;
Real i = std::imag(out) * SDR_TX_SCALEF;
m_specSampleBuffer[m_specSampleBufferIndex++] = Sample(r, i);
if (m_specSampleBufferIndex == m_specSampleBufferSize)
{
m_spectrumSink->feed(m_specSampleBuffer.begin(), m_specSampleBuffer.end(), false);
m_specSampleBufferIndex = 0;
}
}
}
}
@@ -130,12 +132,12 @@ void RttyModSource::modulateSample()
// Encode a character at a time, so we get a TxReport after each character
QString s = m_textToTransmit.left(1);
m_textToTransmit = m_textToTransmit.mid(1);
encodePacket(s);
encodeText(s);
}
else
{
// Transmit "diddle"
encodePacket(">");
encodeText(">");
}
initTX();
}
@@ -148,30 +150,20 @@ void RttyModSource::modulateSample()
m_sampleIdx = 0;
}
if (!m_settings.m_bbNoise)
// FSK
if (m_settings.m_pulseShaping)
{
// FSK
if (m_settings.m_pulseShaping)
{
if (m_sampleIdx == 1) {
audioMod = m_pulseShape.filter(m_bit ? 1.0f : -1.0f);
} else {
audioMod = m_pulseShape.filter(0.0f);
}
}
else
{
audioMod = m_bit ? 1.0f : -1.0f;
if (m_sampleIdx == 1) {
audioMod = m_pulseShape.filter(m_bit ? 1.0f : -1.0f);
} else {
audioMod = m_pulseShape.filter(0.0f);
}
}
else
{
audioMod = (Real)rand() / ((Real)RAND_MAX) - 0.5; // Noise to test filter frequency response
audioMod = m_bit ? 1.0f : -1.0f;
}
// Display baseband audio in spectrum analyser
sampleToSpectrum(audioMod);
// FM
m_fmPhase += m_phaseSensitivity * audioMod * (m_settings.m_spaceHigh ? -1.0f : 1.0f);
// Keep phase in range -pi,pi
@@ -196,6 +188,9 @@ void RttyModSource::modulateSample()
// Apply low pass filter to limit RF BW
m_modSample = m_lowpass.filter(m_modSample);
// Display in spectrum analyser
sampleToSpectrum(m_modSample);
Real s = std::real(m_modSample);
calculateLevel(s);
@@ -245,7 +240,12 @@ void RttyModSource::calculateLevel(Real& sample)
void RttyModSource::applySettings(const RttyModSettings& settings, bool force)
{
// Only recreate filters if settings have changed
if ((settings.m_baud != m_settings.m_baud) || force)
{
m_samplesPerSymbol = m_channelSampleRate / settings.m_baud;
qDebug() << "m_samplesPerSymbol: " << m_samplesPerSymbol << " (" << m_channelSampleRate << "/" << settings.m_baud << ")";
}
if ((settings.m_lpfTaps != m_settings.m_lpfTaps) || (settings.m_rfBandwidth != m_settings.m_rfBandwidth) || force)
{
qDebug() << "RttyModSource::applySettings: Creating new lpf with taps " << settings.m_lpfTaps << " rfBW " << settings.m_rfBandwidth;
@@ -273,9 +273,6 @@ void RttyModSource::applySettings(const RttyModSettings& settings, bool force)
m_settings = settings;
m_samplesPerSymbol = m_channelSampleRate / m_settings.m_baud;
qDebug() << "m_samplesPerSymbol: " << m_samplesPerSymbol << " (" << m_channelSampleRate << "/" << m_settings.m_baud << ")";
// Precalculate FM sensensity and linear gain to save doing it in the loop
m_phaseSensitivity = 2.0f * M_PI * (m_settings.m_frequencyShift/2.0f) / (double)m_channelSampleRate;
m_linearGain = powf(10.0f, m_settings.m_gain/20.0f);
@@ -320,6 +317,7 @@ void RttyModSource::applyChannelSettings(int channelSampleRate, int channelFrequ
m_channelFrequencyOffset = channelFrequencyOffset;
m_samplesPerSymbol = m_channelSampleRate / m_settings.m_baud;
qDebug() << "m_samplesPerSymbol: " << m_samplesPerSymbol << " (" << m_channelSampleRate << "/" << m_settings.m_baud << ")";
// Precalculate FM sensensity to save doing it in the loop
m_phaseSensitivity = 2.0f * M_PI * (m_settings.m_frequencyShift/2.0f) / (double)m_channelSampleRate;
@@ -385,25 +383,26 @@ void RttyModSource::initTX()
m_bit = 0;
}
void RttyModSource::addTXPacket(QString data)
void RttyModSource::addTXText(QString text)
{
int count = m_settings.m_repeat ? m_settings.m_repeatCount : 1;
for (int i = 0; i < count; i++) {
m_textToTransmit.append(data);
QString s = text;
if (m_settings.m_prefixCRLF) {
s.prepend("\r\r\n>"); // '>' switches to letters
}
if (m_settings.m_postfixCRLF) {
s.append("\r\r\n");
}
m_textToTransmit.append(s);
}
}
void RttyModSource::addTXPacket(QByteArray data)
{
int count = m_settings.m_repeat ? m_settings.m_repeatCount : 1;
for (int i = 0; i < count; i++) {
m_textToTransmit.append(QString(data));
}
}
void RttyModSource::encodePacket(const QString& text)
void RttyModSource::encodeText(const QString& text)
{
// RTTY encoding
m_byteIdx = 0;