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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/jtms3@2495 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor 2012-07-06 20:31:42 +00:00
parent 8af8a0529d
commit 9626c5f9a0
3 changed files with 16 additions and 20 deletions
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8
getfile.cpp
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@ -4,8 +4,6 @@
#include <stdlib.h>
#include <math.h>
extern qint16 id[4*60*96000];
void getfile(QString fname, bool xpol, int dbDgrd)
{
@ -17,8 +15,10 @@ void getfile(QString fname, bool xpol, int dbDgrd)
memset(datcom_.d2,0,2*npts);
if(fp != NULL) {
// Should read WAV header first
fread(datcom_.d2,2,npts,fp);
// Read (and ignore) a 44-byte WAV header; then read data
fread(datcom_.d2,1,44,fp);
int nrd=fread(datcom_.d2,2,npts,fp);
qDebug() << "Getfile" << npts << nrd;
fclose(fp);
}
}

4
jtms3.txt
View File

@ -23,8 +23,8 @@ sinc function for each bit, then multiplying by a 1500 Hz sine wave.
3. Receiving
a. Compute real-to-complex windowed FFTs, N=16384 (t=341 ms),
stepped by 8k (say). Zap birdies, remove frequency components
a. Compute real-to-complex windowed FFTs, N=8192 (t=170 ms),
stepped by 4k (say). Zap birdies, remove frequency components
outside the range 300 - 2700 Hz, and convert to analytic
time-domain signal.

24
mainwindow.cpp
View File

@ -193,7 +193,7 @@ MainWindow::MainWindow(QWidget *parent) :
soundOutThread.setOutputDevice(m_paOutDevice);
// soundOutThread.start(QThread::HighPriority);
m_monitoring=true; // Start with Monitoring ON
m_monitoring=false; // Start with Monitoring OFF
soundInThread.setMonitoring(m_monitoring);
m_diskData=false;
m_tol=500;
@ -418,7 +418,6 @@ void MainWindow::dataSink(int k)
}
sqave=0.5*(sq+sq0);
sq0=sq;
// qDebug() << "rms:" << sqrt(sq/6192.0);
px = 10.0*log10(sqave/6192.0);
if(px>60.0) px=60.0;
if(px<0.0) px=0.0;
@ -452,7 +451,7 @@ void MainWindow::dataSink(int k)
qint64 ms = QDateTime::currentMSecsSinceEpoch() % 86400000;
int n300 = (ms/100) % 300;
qDebug() << "dataSink" << k << n300 << nwrite;
qDebug() << "dataSink" << k << ms % 60000;
if(n300 >= 295 and nwrite==0) {
nwrite=1;
if(m_saveAll) {
@ -781,7 +780,7 @@ void MainWindow::on_actionOpen_triggered() //Open File
on_stopButton_clicked();
m_diskData=true;
int dbDgrd=0;
if(m_myCall=="K1JT" and m_idInt<0) dbDgrd=m_idInt;
// if(m_myCall=="K1JT" and m_idInt<0) dbDgrd=m_idInt;
*future1 = QtConcurrent::run(getfile, fname, m_xpol, dbDgrd);
watcher1->setFuture(*future1);
}
@ -830,20 +829,17 @@ void MainWindow::on_actionDecode_remaining_files_in_directory_triggered()
void MainWindow::diskDat() //diskDat()
{
//These may be redundant??
int kstep=4096;
int nsteps;
m_diskData=true;
// datcom_.newdat=1;
/*
double hsym;
if(m_fs96000) hsym=2048.0*96000.0/11025.0; //Samples per JT65 half-symbol
if(!m_fs96000) hsym=2048.0*95238.1/11025.0;
for(int i=0; i<281; i++) { // Do the half-symbol FFTs
int k = i*hsym + 2048.5;
nsteps=29.5*48000/kstep;
for(int n=1; n<nsteps; n++) { // Do the half-symbol FFTs
int k=(n+1)*kstep;
dataSink(k);
if(i%10 == 0) qApp->processEvents(); //Keep the GUI responsive
if(n%10 == 0) qApp->processEvents(); //Keep the GUI responsive
}
*/
}
void MainWindow::diskWriteFinished() //diskWriteFinished