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WSJT-X
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Correct a number of parameters that control FST280 signal duration and timing.

This commit is contained in:
Joe Taylor 2020-06-25 17:18:48 -04:00
parent 1226aacaad
commit 9caf3b650c
3 changed files with 44 additions and 27 deletions
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27
Modulator/Modulator.cpp
View File

@ -69,13 +69,8 @@ void Modulator::start (unsigned symbolsLength, double framesPerSymbol,
m_bFastMode=fastMode;
m_TRperiod=TRperiod;
unsigned delay_ms=1000;
if(m_nsps==1920) delay_ms=500; //FT8
if(m_nsps==576) delay_ms=300; //FT4
if(m_nsps==800) delay_ms=750; //FST280-15
if(m_nsps==1680) delay_ms=650; //FST280-30
if(m_nsps==4000) delay_ms=450; //FST280-60
if(m_nsps==8400) delay_ms=250; //FST280-120
if(m_nsps==21504) delay_ms=50; //FST280-300
if(m_nsps==1920) delay_ms=500; //FT8
if(m_nsps==576) delay_ms=300; //FT4
// noise generator parameters
if (m_addNoise) {
@ -89,7 +84,6 @@ void Modulator::start (unsigned symbolsLength, double framesPerSymbol,
if(delay_ms > 0 and !m_bFastMode) {
m_ic = (mstr/delay_ms) * m_frameRate * delay_ms / 1000;
}
if(m_nsps==21504) m_ic=int(0.8*48000); //FST280-300
m_silentFrames = 0;
// calculate number of silent frames to send, so that audio will start at
@ -98,9 +92,21 @@ void Modulator::start (unsigned symbolsLength, double framesPerSymbol,
if(delay_ms >= mstr) m_silentFrames = m_ic + 0.001*(delay_ms-mstr)*m_frameRate;
}
// qDebug() << "aa" << QDateTime::currentDateTimeUtc().toString("hh:mm:ss.zzz")
// Special case for FST280:
// qDebug() << "aa" << m_ic << m_silentFrames << m_symbolsLength << m_nsps;
if(m_nsps==800 or m_nsps==1680 or m_nsps==3888 or m_nsps==8200 or m_nsps==21168) {
m_ic = m_ic + 48000 - 2*m_nsps + 9600; //The 9600 is empirical
m_silentFrames = m_silentFrames - 2*m_nsps;
}
if(m_silentFrames<0) {
m_ic = m_ic - m_silentFrames;
m_silentFrames = 0;
}
// qDebug() << "bb" << m_ic << m_silentFrames;
// qDebug() << "cc" << QDateTime::currentDateTimeUtc().toString("hh:mm:ss.zzz")
// << delay_ms << mstr << m_silentFrames << m_ic;
initialize (QIODevice::ReadOnly, channel);
Q_EMIT stateChanged ((m_state = (synchronize && m_silentFrames) ?
Synchronizing : Active));
@ -317,6 +323,9 @@ qint64 Modulator::readData (char * data, qint64 maxSize)
++m_ic;
}
// qDebug() << "dd" << QDateTime::currentDateTimeUtc().toString("hh:mm:ss.zzz")
// << m_ic << m_amp << foxcom_.wave[m_ic];
if (m_amp == 0.0) { // TODO G4WJS: compare double with zero might not be wise
if (icw[0] == 0) {
// no CW ID to send

42
widgets/mainwindow.cpp
View File

@ -1342,11 +1342,18 @@ void MainWindow::fixStop()
} else if (m_mode=="FT4") {
m_hsymStop=21;
} else if(m_mode=="FST280" or m_mode=="FST280W") {
if(m_TRperiod==15) m_hsymStop=51;
if(m_TRperiod==30) m_hsymStop=95;
if(m_TRperiod==60) m_hsymStop=205;
if(m_TRperiod==120) m_hsymStop=414;
if(m_TRperiod==300) m_hsymStop=1036;
int stop[] = {45,87,192,397,1012};
int stop_EME[] = {51,96,201,406,1021};
int i=0;
if(m_TRperiod==30) i=1;
if(m_TRperiod==60) i=2;
if(m_TRperiod==120) i=3;
if(m_TRperiod==300) i=4;
if(m_config.decode_at_52s()) {
m_hsymStop=stop_EME[i];
} else {
m_hsymStop=stop[i];
}
}
}
@ -3531,11 +3538,11 @@ void MainWindow::guiUpdate()
if(m_modeTx=="QRA64") txDuration=1.0 + 84*6912/12000.0; // QRA64
if(m_modeTx=="WSPR") txDuration=2.0 + 162*8192/12000.0; // WSPR
if(m_modeTx=="FST280" or m_mode=="FST280W") { //FST280, FST280W
if(m_TRperiod==15) txDuration=1.0 + 164*800/12000.0;
if(m_TRperiod==30) txDuration=1.0 + 164*1680/12000.0;
if(m_TRperiod==60) txDuration=1.0 + 164*4000/12000.0;
if(m_TRperiod==120) txDuration=1.0 + 164*8400/12000.0;
if(m_TRperiod==300) txDuration=1.0 + 164*2150500/12000.0;
if(m_TRperiod==15) txDuration=1.0 + 166*800/12000.0;
if(m_TRperiod==30) txDuration=1.0 + 166*1680/12000.0;
if(m_TRperiod==60) txDuration=1.0 + 166*3888/12000.0;
if(m_TRperiod==120) txDuration=1.0 + 166*8200/12000.0;
if(m_TRperiod==300) txDuration=1.0 + 166*21168/12000.0;
}
if(m_modeTx=="ISCAT" or m_mode=="MSK144" or m_bFast9) {
txDuration=m_TRperiod-0.25; // ISCAT, JT9-fast, MSK144
@ -3877,15 +3884,16 @@ void MainWindow::guiUpdate()
int hmod=int(pow(2.0,double(m_nSubMode)));
int nsps=800;
if(m_TRperiod==30) nsps=1680;
if(m_TRperiod==60) nsps=4000;
if(m_TRperiod==120) nsps=8400;
if(m_TRperiod==300) nsps=21504;
if(m_TRperiod==60) nsps=3888;
if(m_TRperiod==120) nsps=8200;
if(m_TRperiod==300) nsps=21168;
nsps=4*nsps; //48000 Hz sampling
int nsym=164;
float fsample=48000.0;
float dfreq=hmod*fsample/nsps;
float f0=ui->TxFreqSpinBox->value() - m_XIT + 1.5*dfreq;
int nwave=(nsym+2)*nsps;
// int nwave=(nsym+2)*nsps;
int nwave=48000 + 166*nsps;
int icmplx=0;
gen_fst280wave_(const_cast<int *>(itone),&nsym,&nsps,&nwave,
&fsample,&hmod,&f0,&icmplx,foxcom_.wave,foxcom_.wave);
@ -7160,9 +7168,9 @@ void MainWindow::transmit (double snr)
toneSpacing=-2.0; //Transmit a pre-computed, filtered waveform.
int nsps=800;
if(m_TRperiod==30) nsps=1680;
if(m_TRperiod==60) nsps=4000;
if(m_TRperiod==120) nsps=8400;
if(m_TRperiod==300) nsps=21504;
if(m_TRperiod==60) nsps=3888;
if(m_TRperiod==120) nsps=8200;
if(m_TRperiod==300) nsps=21168;
int hmod=int(pow(2.0,double(m_nSubMode)));
double dfreq=hmod*12000.0/nsps;
double f0=ui->TxFreqSpinBox->value() - m_XIT + 1.5*dfreq;

2
widgets/mainwindow.h
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@ -49,7 +49,7 @@
#define NUM_QRA64_SYMBOLS 84 //63 data + 21 sync
#define NUM_FT8_SYMBOLS 79
#define NUM_FT4_SYMBOLS 105
#define NUM_FST280_SYMBOLS 164 //280/2 data + 6*4 sync
#define NUM_FST280_SYMBOLS 166 //280/2 data + 6*4 sync + 2 ramp
#define NUM_CW_SYMBOLS 250
#define TX_SAMPLE_RATE 48000
#define N_WIDGETS 33