w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2024-11-25 21:58:38 -05:00
Code Issues Packages Projects Releases Wiki Activity

Morphing toward a usable WSJT-X with JT8 modes.

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2594 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor 2012-09-24 19:11:31 +00:00
parent 0ae89c922f
commit 000502af77
11 changed files with 298 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
jt8.txt Normal file
View File

@ -0,0 +1,31 @@
JT8 is a mode designed for amateur QSOs and beacon-like transmissions
at MF and LF. The mode uses the same 72-bit user messages as JT65,
augmented by a 12-bit cyclic redundancy check (CRC). Error-control
coding uses a convolutional code with constraint length K=16, rate
r=1/2, and a zero tail, leading to an encoded message length of
(72+12+15)*2 = 198 bits. Modulation is 8-FSK, so a transmission
requires 198/3 = 66 information-carrying channel symbols. Two 8x8
Costas arrays are added to each transmission for purposes of time and
frequency synchronization. A full transmission thus contains 66 + 16
= 82 symbols. Tone spacing df of the 8-FSK modulation is equal to the
keying rate; symbol duration tsym = 1/df, and the total occupied
bandwidth is 8*df. The actual transmission length TxT is slightly
less than the T/R sequence time, to allow for possible message
decoding before the next transmission starts.
Parameters of the five JT8 sub-modes are summarized in the following
table, along with S/N thresholds measured by simulation on an AWGN
(additive white Gaussian noise) channel. Parameter nsps is the number
of samples per symbol at sample rate 1500 Hz.
-----------------------------------------------------
Mode T/R TxT nsps df tsym BW S/N*
(m) (s) (Hz) (s) (Hz) (dB)
-----------------------------------------------------
JT8-1 1 52.5 960 1.562 0.64 12.6 -26.9
JT8-2 2 112.0 2048 0.732 1.37 5.9 -30.2
JT8-5 5 293.9 5376 0.279 3.58 2.2 -34.4
JT8-10 10 587.8 10752 0.140 7.17 1.1 -37.5
JT8-30 30 1791.3 32768 0.046 21.85 0.4 -42.3
-----------------------------------------------------
* Noise power measured in a 2500 Hz bandwidth.

96
libm65/genjt8.f90 Normal file
View File

@ -0,0 +1,96 @@
subroutine genjt8(message,iwave,nwave,nbit,msgsent)
! Generate a JT8 wavefile.
parameter (NMAX=60*12000) !Max length of wave file
character*24 message !Message to be generated
character*24 msgsent !Message as it will be received
character cmode*5
real*8 t,dt,phi,f,f0,dfgen,dphi,twopi,tsymbol
integer*2 iwave(NMAX) !Generated wave file
integer iu(3)
integer gsym(372) !372 is needed for JT8 mode
integer sent(144)
integer ic8(8)
data ic8/3,6,2,4,5,0,7,1/
data nsps/4096/
data twopi/6.283185307d0/
save
cmode='JT8' !### temp ? ###
call srcenc(cmode,message,nbit,iu)
! In JT8 mode, message length is always nbit=78
if(nbit.ne.78) then
print*,'genjt8, nbit=',nbit
stop
endif
! Apply FEC and do the channel encoding
call chenc(cmode,nbit,iu,gsym)
! Remove source encoding, recover the human-readable message.
call srcdec(cmode,nbit,iu,msgsent)
! Insert 8x8 Costas array at beginning and end of array sent().
sent(1:8)=ic8
sent(135:142)=ic8
! Insert two symbols after each Costas array to specify message length.
if(nbit.eq.30) then
sent(9)=2
sent(10)=2
sent(143)=2
sent(144)=2
else if(nbit.eq.48) then
sent(9)=3
sent(10)=3
sent(143)=3
sent(144)=3
else
sent(9)=6
sent(10)=6
sent(143)=6
sent(144)=6
endif
! Insert the 3-bit data symbols
sent(11:134)=gsym(1:124)
! Use the four free symbols in 30-bit mode
if(nbit.eq.30) then
sent(121)=sent(20)
sent(122)=sent(45)
sent(123)=sent(70)
sent(124)=sent(95)
endif
! Set up necessary constants
nsym=144
tsymbol=nsps/12000.d0
dt=1.d0/12000.d0
f0=1270.46d0
dfgen=12000.d0/nsps
t=0.d0
phi=0.d0
k=0
j0=0
ndata=(nsym*12000.d0*tsymbol)/2
ndata=2*ndata
do i=1,ndata
t=t+dt
j=int(t/tsymbol) + 1 !Symbol number, 1-nsym
if(j.ne.j0) then
f=f0
k=k+1
if(k.le.144) f=f0+(sent(k))*dfgen !### Fix need for this ###
dphi=twopi*dt*f
j0=j
endif
phi=phi+dphi
iwave(i)=32767.0*sin(phi)
enddo
iwave(ndata+1:)=0
nwave=ndata+6000 !0.5 s buffer before CW ID
return
end subroutine genjt8

118
mainwindow.cpp
View File

@ -42,9 +42,11 @@ MainWindow::MainWindow(QWidget *parent) :
ui->actionBlue->setActionGroup(paletteGroup);
QActionGroup* modeGroup = new QActionGroup(this);
ui->actionJT65A->setActionGroup(modeGroup);
ui->actionJT65B->setActionGroup(modeGroup);
ui->actionJT65C->setActionGroup(modeGroup);
ui->actionJT8_1->setActionGroup(modeGroup);
ui->actionJT8_2->setActionGroup(modeGroup);
ui->actionJT8_5->setActionGroup(modeGroup);
ui->actionJT8_10->setActionGroup(modeGroup);
ui->actionJT8_30->setActionGroup(modeGroup);
QActionGroup* saveGroup = new QActionGroup(this);
ui->actionSave_all->setActionGroup(saveGroup);
@ -94,7 +96,7 @@ MainWindow::MainWindow(QWidget *parent) :
m_myCall="K1JT";
m_myGrid="FN20qi";
m_appDir = QApplication::applicationDirPath();
m_saveDir="/users/joe/wsjt-x/install/save";
m_saveDir="/users/joe/wsjtx/install/save";
m_txFreq=125;
m_setftx=0;
m_loopall=false;
@ -106,7 +108,8 @@ MainWindow::MainWindow(QWidget *parent) :
m_RxLog=1; //Write Date and Time to RxLog
m_nutc0=9999;
m_NB=false;
m_mode="JTMSK";
m_mode="JT8-1";
m_TRperiod=60;
m_colors="000066ff0000ffff00969696646464";
ui->xThermo->setFillBrush(Qt::green);
@ -126,8 +129,13 @@ MainWindow::MainWindow(QWidget *parent) :
border-style: outset; border-width: 1px; border-radius: 5px; \
border-color: black; min-width: 5em; padding: 3px;}";
genStdMsgs("26");
genStdMsgs("-30");
on_actionWide_Waterfall_triggered(); //###
if(m_mode=="JT8-1") on_actionJT8_1_triggered();
if(m_mode=="JT8-2") on_actionJT8_2_triggered();
if(m_mode=="JT8-5") on_actionJT8_5_triggered();
if(m_mode=="JT8-10") on_actionJT8_10_triggered();
if(m_mode=="JT8-30") on_actionJT8_30_triggered();
future1 = new QFuture<void>;
watcher1 = new QFutureWatcher<void>;
@ -194,7 +202,7 @@ MainWindow::~MainWindow()
//-------------------------------------------------------- writeSettings()
void MainWindow::writeSettings()
{
QString inifile = m_appDir + "/wsjt-x.ini";
QString inifile = m_appDir + "/wsjtx.ini";
QSettings settings(inifile, QSettings::IniFormat);
settings.beginGroup("MainWindow");
@ -261,7 +269,7 @@ void MainWindow::writeSettings()
//---------------------------------------------------------- readSettings()
void MainWindow::readSettings()
{
QString inifile = m_appDir + "/wsjt-x.ini";
QString inifile = m_appDir + "/wsjtx.ini";
QSettings settings(inifile, QSettings::IniFormat);
settings.beginGroup("MainWindow");
restoreGeometry(settings.value("geometry").toByteArray());
@ -307,7 +315,7 @@ void MainWindow::readSettings()
"PaletteAFMHot",false).toBool());
ui->actionBlue->setChecked(settings.value(
"PaletteBlue",false).toBool());
m_mode=settings.value("Mode","JTMSK").toString();
m_mode=settings.value("Mode","JT8-1").toString();
ui->actionNone->setChecked(settings.value("SaveNone",true).toBool());
ui->actionSave_all->setChecked(settings.value("SaveAll",false).toBool());
m_saveAll=ui->actionSave_all->isChecked();
@ -556,13 +564,13 @@ void MainWindow::keyPressEvent( QKeyEvent *e ) //keyPressEvent
break;
case Qt::Key_G:
if(e->modifiers() & Qt::AltModifier) {
genStdMsgs("26");
genStdMsgs("-30");
break;
}
case Qt::Key_L:
if(e->modifiers() & Qt::ControlModifier) {
lookup();
genStdMsgs("26");
genStdMsgs("-30");
break;
}
}
@ -616,13 +624,13 @@ void MainWindow::createStatusBar() //createStatusBar
lab3->setFrameStyle(QFrame::Panel | QFrame::Sunken);
statusBar()->addWidget(lab3);
/*
lab4 = new QLabel("");
lab4->setAlignment(Qt::AlignHCenter);
lab4->setMinimumSize(QSize(80,10));
lab4->setFrameStyle(QFrame::Panel | QFrame::Sunken);
statusBar()->addWidget(lab4);
/*
lab5 = new QLabel("");
lab5->setAlignment(Qt::AlignHCenter);
lab5->setMinimumSize(QSize(50,10));
@ -898,19 +906,18 @@ void MainWindow::guiUpdate()
static char msgsent[29];
static int nsendingsh=0;
int khsym=0;
double trperiod=30.0;
double tx1=0.0;
double tx2=trperiod;
double tx2=m_TRperiod;
if(!m_txFirst) {
tx1 += trperiod;
tx2 += trperiod;
tx1 += m_TRperiod;
tx2 += m_TRperiod;
}
qint64 ms = QDateTime::currentMSecsSinceEpoch() % 86400000;
int nsec=ms/1000;
double tsec=0.001*ms;
double t2p=fmod(tsec,2*trperiod);
double t2p=fmod(tsec,2*m_TRperiod);
bool bTxTime = t2p >= tx1 && t2p < tx2;
if(m_auto) {
@ -948,7 +955,7 @@ void MainWindow::guiUpdate()
int len1=28;
genmsk_(message,iwave,&nwave,len1);
if(m_restart) {
QFile f("wsjt-x_tx.log");
QFile f("wsjtx_tx.log");
f.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append);
QTextStream out(&f);
out << QDateTime::currentDateTimeUtc().toString("yyyy-MMM-dd hh:mm")
@ -969,7 +976,7 @@ void MainWindow::guiUpdate()
btxok=true;
m_transmitting=true;
QFile f("wsjt-x_tx.log");
QFile f("wsjtx_tx.log");
f.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append);
QTextStream out(&f);
out << QDateTime::currentDateTimeUtc().toString("yyyy-MMM-dd hh:mm")
@ -1010,7 +1017,6 @@ void MainWindow::guiUpdate()
}
if(nsec != m_sec0) { //Once per second
if(m_transmitting) {
if(nsendingsh==1) {
lab1->setStyleSheet("QLabel{background-color: #66ffff}");
@ -1158,7 +1164,7 @@ void MainWindow::doubleClickOnCall(QString hiscall, bool ctrl)
QString rpt="";
if(ctrl) rpt=t2.mid(23,3);
lookup();
rpt="26";
rpt="-30";
genStdMsgs(rpt);
if(t2.indexOf(m_myCall)>0) {
m_ntx=2;
@ -1408,7 +1414,7 @@ void MainWindow::on_dxGridEntry_textChanged(const QString &t) //dxGrid changed
void MainWindow::on_genStdMsgsPushButton_clicked() //genStdMsgs button
{
genStdMsgs("26");
genStdMsgs("-30");
}
void MainWindow::on_logQSOButton_clicked() //Log QSO button
@ -1433,10 +1439,10 @@ void MainWindow::on_logQSOButton_clicked() //Log QSO button
void MainWindow::on_actionErase_wsjtx_rx_log_triggered() //Erase Rx log
{
int ret = QMessageBox::warning(this, "Confirm Erase",
"Are you sure you want to erase file wsjt-x_rx.log ?",
"Are you sure you want to erase file wsjtx_rx.log ?",
QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
if(ret==QMessageBox::Yes) {
m_RxLog |= 2; // Rewind wsjt-x_rx.log
m_RxLog |= 2; // Rewind wsjtx_rx.log
}
}
*/
@ -1444,10 +1450,70 @@ void MainWindow::on_actionErase_wsjtx_rx_log_triggered() //Erase Rx log
void MainWindow::on_actionErase_wsjtx_tx_log_triggered() //Erase Tx log
{
int ret = QMessageBox::warning(this, "Confirm Erase",
"Are you sure you want to erase file wsjt-x_tx.log ?",
"Are you sure you want to erase file wsjtx_tx.log ?",
QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
if(ret==QMessageBox::Yes) {
QFile f("wsjt-x_tx.log");
QFile f("wsjtx_tx.log");
f.remove();
}
}
void MainWindow::on_actionJT8_1_triggered()
{
m_mode="JT8-1";
m_TRperiod=60;
soundInThread.setPeriod(m_TRperiod);
soundOutThread.setPeriod(m_TRperiod);
g_pWideGraph->setPeriod(m_TRperiod);
lab4->setStyleSheet("QLabel{background-color: #ff6ec7}");
lab4->setText(m_mode);
ui->actionJT8_1->setChecked(true);
}
void MainWindow::on_actionJT8_2_triggered()
{
m_mode="JT8-2";
m_TRperiod=120;
soundInThread.setPeriod(m_TRperiod);
soundOutThread.setPeriod(m_TRperiod);
g_pWideGraph->setPeriod(m_TRperiod);
lab4->setStyleSheet("QLabel{background-color: #ffff00}");
lab4->setText(m_mode);
ui->actionJT8_2->setChecked(true);
}
void MainWindow::on_actionJT8_5_triggered()
{
m_mode="JT8-5";
m_TRperiod=300;
soundInThread.setPeriod(m_TRperiod);
soundOutThread.setPeriod(m_TRperiod);
g_pWideGraph->setPeriod(m_TRperiod);
lab4->setStyleSheet("QLabel{background-color: #ffa500}");
lab4->setText(m_mode);
ui->actionJT8_5->setChecked(true);
}
void MainWindow::on_actionJT8_10_triggered()
{
m_mode="JT8-10";
m_TRperiod=600;
soundInThread.setPeriod(m_TRperiod);
soundOutThread.setPeriod(m_TRperiod);
g_pWideGraph->setPeriod(m_TRperiod);
lab4->setStyleSheet("QLabel{background-color: #7fff00}");
lab4->setText(m_mode);
ui->actionJT8_10->setChecked(true);
}
void MainWindow::on_actionJT8_30_triggered()
{
m_mode="JT8-30";
m_TRperiod=1800;
soundInThread.setPeriod(m_TRperiod);
soundOutThread.setPeriod(m_TRperiod);
g_pWideGraph->setPeriod(m_TRperiod);
lab4->setStyleSheet("QLabel{background-color: #97ffff}");
lab4->setText(m_mode);
ui->actionJT8_30->setChecked(true);
}

13
mainwindow.h
View File

@ -98,11 +98,21 @@ private slots:
void on_genStdMsgsPushButton_clicked();
void bumpDF(int n);
void on_logQSOButton_clicked();
// void on_actionErase_wsjt-x_rx_log_triggered();
// void on_actionErase_wsjtx_rx_log_triggered();
void on_actionErase_wsjtx_tx_log_triggered();
void on_actionAFMHot_triggered();
void on_actionBlue_triggered();
void on_actionJT8_2_triggered();
void on_actionJT8_1_triggered();
void on_actionJT8_5_triggered();
void on_actionJT8_30_triggered();
void on_actionJT8_10_triggered();
private:
Ui::MainWindow *ui;
qint32 m_nDevIn;
@ -133,6 +143,7 @@ private:
qint32 m_adjustIQ;
qint32 m_applyIQcal;
qint32 m_mult570;
qint32 m_TRperiod;
double m_fAdd;
double m_IQamp;

45
mainwindow.ui
View File

@ -1126,6 +1126,11 @@ p, li { white-space: pre-wrap; }
<property name="title">
<string>Mode</string>
</property>
<addaction name="actionJT8_1"/>
<addaction name="actionJT8_2"/>
<addaction name="actionJT8_5"/>
<addaction name="actionJT8_10"/>
<addaction name="actionJT8_30"/>
</widget>
<addaction name="menuFile"/>
<addaction name="menuSetup"/>
@ -1469,6 +1474,46 @@ p, li { white-space: pre-wrap; }
<string>FUNcube Dongle Settings</string>
</property>
</action>
<action name="actionJT8_1">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>JT8-1</string>
</property>
</action>
<action name="actionJT8_2">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>JT8-2</string>
</property>
</action>
<action name="actionJT8_5">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>JT8-5</string>
</property>
</action>
<action name="actionJT8_10">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>JT8-10</string>
</property>
</action>
<action name="actionJT8_30">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>JT8-30</string>
</property>
</action>
</widget>
<layoutdefault spacing="6" margin="11"/>
<customwidgets>

4
soundin.cpp
View File

@ -156,6 +156,10 @@ void SoundInThread::setMonitoring(bool b) //setMonitoring()
m_monitoring = b;
}
void SoundInThread::setPeriod(int n)
{
m_TRperiod=n;
}
int SoundInThread::mstep()
{

3
soundin.h
View File

@ -26,6 +26,7 @@ public:
void setInputDevice(qint32 n);
void setMonitoring(bool b);
void setPeriod(int n);
int mstep();
signals:
@ -41,6 +42,8 @@ private:
bool m_monitoring;
qint32 m_step;
qint32 m_nDevIn;
qint32 m_TRperiod;
qint32 m_TRperiod0;
};

5
soundout.cpp
View File

@ -103,3 +103,8 @@ void SoundOutThread::setOutputDevice(int n) //setOutputDevice()
if (isRunning()) return;
this->m_nDevOut=n;
}
void SoundOutThread::setPeriod(int n)
{
m_TRperiod=n;
}

3
soundout.h
View File

@ -25,6 +25,7 @@ public:
public:
void setOutputDevice(qint32 n);
void setPeriod(int n);
bool quitExecution; //If true, thread exits gracefully
@ -33,6 +34,8 @@ private:
qint32 m_nDevOut; //Output device number
bool m_txOK; //Enable Tx audio
bool m_txMute; //Mute temporarily
qint32 m_TRperiod; //T/R period (30 or 60 s)
};
#endif

5
widegraph.cpp
View File

@ -208,6 +208,11 @@ void WideGraph::setPalette(QString palette)
ui->widePlot->setPalette(palette);
}
void WideGraph::setPeriod(int n)
{
m_TRperiod=n;
}
void WideGraph::on_cbSpec2d_toggled(bool b)
{
ui->widePlot->set2Dspec(b);

2
widegraph.h
View File

@ -32,6 +32,7 @@ public:
void setFcal(int n);
void setPalette(QString palette);
void setMode65(int n);
void setPeriod(int n);
qint32 m_qsoFreq;
@ -58,6 +59,7 @@ private:
qint32 m_fCal;
qint32 m_fSample;
qint32 m_mode65;
qint32 m_TRperiod;
Ui::WideGraph *ui;
};