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https://github.com/saitohirga/WSJT-X.git
synced 2024-11-25 13:48:42 -05:00
First working code offering optional computation and use of a reference
spectrum. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6608 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
parent
3541d12a67
commit
b843894061
@ -62,6 +62,7 @@ extern struct dec_data {
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extern struct {
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float syellow[NSMAX];
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float ref[3457];
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float filter[3457];
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} spectra_;
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extern struct {
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@ -1,4 +1,4 @@
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subroutine refspectrum(id2,brefspec)
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subroutine refspectrum(id2,brefspec,buseref,fname)
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! Input:
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! id2 i*2 Raw 16-bit integer data, 12000 Hz sample rate
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@ -6,24 +6,41 @@ subroutine refspectrum(id2,brefspec)
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parameter (NFFT=6912,NH=NFFT/2)
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integer*2 id2(NH)
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logical brefspec,brefspec0
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real x(NFFT)
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real s(0:NH)
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complex cx(0:NH)
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common/spectra/syellow(6827),ref(0:NH)
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logical*1 brefspec,buseref
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real x0(0:NH-1) !Input samples
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real x1(0:NH-1) !Output samples (delayed by one block)
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real x0s(0:NH-1) !Saved upper half of input samples
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real x1s(0:NH-1) !Saved upper half of output samples
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real x(0:NFFT-1) !Work array
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real*4 w(0:NFFT-1) !Window function
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real*4 s(0:NH) !Average spectrum
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real*4 fil(0:NH)
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logical first,firstuse
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complex cx(0:NH) !Complex frequency-domain work array
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character*(*) fname
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common/spectra/syellow(6827),ref(0:NH),filter(0:NH)
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equivalence(x,cx)
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data nsave/0/,brefspec0/.false./
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! save brefspec0,nsave,ref
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data first/.true./,firstuse/.true./
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save
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if(brefspec) then
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if(.not.brefspec0) then
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if(first) then
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pi=4.0*atan(1.0)
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do i=0,NFFT-1
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ww=sin(i*pi/NFFT)
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w(i)=ww*ww/NFFT
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enddo
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nsave=0
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s=0.
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s=0.0
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filter=1.0
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x0s=0.
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x1s=0.
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first=.false.
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endif
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x(1:NH)=0.001*id2
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x(NH+1:)=0.0
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if(brefspec) then
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x(0:NH-1)=0.001*id2
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x(NH:NFFT-1)=0.0
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call four2a(x,NFFT,1,-1,0) !r2c FFT
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do i=1,NH
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@ -31,27 +48,80 @@ subroutine refspectrum(id2,brefspec)
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enddo
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nsave=nsave+1
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if(mod(nsave,34).eq.0) then !About 9.8 sec
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fac0=0.9
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if(mod(nsave,4).eq.0) then
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df=12000.0/NFFT
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ia=nint(500.0/df)
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ib=nint(2500.0/df)
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call pctile(s(ia),ib-ia+1,50,xmed)
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db0=db(xmed)
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! nhadd=10
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open(16,file='refspec.dat',status='unknown')
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ia=nint(1000.0/df)
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ib=nint(2000.0/df)
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avemid=sum(s(ia:ib))/(ib-ia+1)
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do i=0,NH
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fil(i)=0.
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filter(i)=-60.0
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if(s(i).gt.0.0) then
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fil(i)=sqrt(avemid/s(i))
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endif
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enddo
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ia=nint(240.0/df)
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fac=fac0
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do i=ia,1,-1
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fac=fac*fac0
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fil(i)=fac*fil(i)
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enddo
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ib=nint(4000.0/df)
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fac=fac0
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do i=ib,NH
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fac=fac*fac0
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fil(i)=fac*fil(i)
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enddo
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do iter=1,1000 !### ??? ###
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call smo121(fil,NH)
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enddo
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do i=0,NH
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filter(i)=-60.0
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if(s(i).gt.0.0) filter(i)=20.0*log10(fil(i))
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enddo
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! open(16,file='refspec.dat',status='unknown')
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open(16,file=fname,status='unknown')
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do i=1,NH
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freq=i*df
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! ia=max(1,i-nhadd)
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! ib=min(NH,i+nhadd)
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! smo=sum(s(ia:ib))/(ib-ia+1)
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ref(i)=db(s(i)) - db0
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write(16,1000) freq,s(i),ref(i)
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1000 format(f10.3,e12.3,f12.6)
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ref(i)=db(s(i)/avemid)
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write(16,1000) freq,s(i),ref(i),fil(i),filter(i)
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1000 format(f10.3,e12.3,f12.6,e12.3,f12.6)
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enddo
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close(16)
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endif
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return
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endif
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brefspec0=brefspec
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if(buseref) then
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if(firstuse) then
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! open(16,file='refspec.dat',status='unknown')
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fil=1.0
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open(16,file=fname,status='old',err=10)
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do i=1,NH
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read(16,1000,err=10,end=10) freq,s(i),ref(i),fil(i),filter(i)
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enddo
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10 close(16)
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firstuse=.false.
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endif
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x0=id2
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x(0:NH-1)=x0s !Previous 2nd half to new 1st half
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x(NH:NFFT-1)=x0 !New 2nd half
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x0s=x0 !Save the new 2nd half
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x=w*x !Apply window
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call four2a(x,NFFT,1,-1,0) !r2c FFT (to frequency domain)
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cx=fil*cx
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call four2a(cx,NFFT,1,1,-1) !c2r FFT (back to time domain)
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x1=x1s + x(0:NH-1) !Add previous segment's 2nd half
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id2=nint(x1)
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x1s=x(NH:NFFT-1) !Save the new 2nd half
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endif
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return
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end subroutine refspectrum
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@ -30,7 +30,7 @@ subroutine symspec(shared_data,k,ntrperiod,nsps,ingain,nminw,pxdb,s, &
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complex cx(0:MAXFFT3/2)
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integer nch(7)
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common/spectra/syellow(NSMAX),ref(0:3456)
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common/spectra/syellow(NSMAX),ref(0:3456),filter(0:3456)
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data rms/999.0/,k0/99999999/,nfft3z/0/
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data nch/1,2,4,9,18,36,72/
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equivalence (xc,cx)
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@ -99,7 +99,8 @@ extern "C" {
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void hash_calls_(char calls[], int* ih9, int len);
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void degrade_snr_(short d2[], int* n, float* db, float* bandwidth);
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void wav12_(short d2[], short d1[], int* nbytes, short* nbitsam2);
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void refspectrum_(short int d2[], bool* brefspec);
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void refspectrum_(short int d2[], bool* brefspec, bool* buseref,
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const char* c_fname, int len);
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}
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int volatile itone[NUM_ISCAT_SYMBOLS]; //Audio tones for all Tx symbols
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@ -874,7 +875,12 @@ void MainWindow::dataSink(qint64 frames)
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static float df3;
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int k (frames);
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if(m_bRefSpec) refspectrum_(&dec_data.d2[k-3456],&m_bRefSpec);
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QString fname {QDir::toNativeSeparators(m_dataDir.absoluteFilePath ("refspec.dat"))};
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QByteArray bafname = fname.toLatin1();
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const char *c_fname = bafname.data();
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int len=fname.length();
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m_bUseRef=m_wideGraph->useRef();
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refspectrum_(&dec_data.d2[k-3456],&m_bRefSpec,&m_bUseRef,c_fname,len);
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if(m_diskData) {
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dec_data.params.ndiskdat=1;
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@ -4043,7 +4049,7 @@ void MainWindow::band_changed (Frequency f)
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if (f + m_wideGraph->nStartFreq () > m_freqNominal + ui->TxFreqSpinBox->value ()
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|| f + m_wideGraph->nStartFreq () + m_wideGraph->fSpan () <=
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m_freqNominal + ui->TxFreqSpinBox->value ()) {
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qDebug () << "start f:" << m_wideGraph->nStartFreq () << "span:" << m_wideGraph->fSpan () << "DF:" << ui->TxFreqSpinBox->value ();
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// qDebug () << "start f:" << m_wideGraph->nStartFreq () << "span:" << m_wideGraph->fSpan () << "DF:" << ui->TxFreqSpinBox->value ();
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// disable auto Tx if "blind" QSY outside of waterfall
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ui->stopTxButton->click (); // halt any transmission
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auto_tx_mode (false); // disable auto Tx
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@ -5344,6 +5350,7 @@ void MainWindow::fastPick(int x0, int x1, int y)
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void MainWindow::on_actionSave_reference_spectrum_triggered()
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{
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if(!m_monitoring) on_monitorButton_clicked (true);
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m_bRefSpec=true;
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}
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@ -426,6 +426,7 @@ private:
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bool m_bFastDecodeCalled;
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bool m_bDoubleClickAfterCQnnn;
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bool m_bRefSpec;
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bool m_bUseRef;
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float m_pctZap;
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char m_msg[100][80];
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@ -176,7 +176,9 @@ void CPlotter::draw(float swide[], bool bScroll) //dr
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if(m_bReference) { //Reference (red)
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float df_ref=12000.0/6912.0;
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int j=FreqfromX(i)/df_ref + 0.5;
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y2=gain2d*spectra_.ref[j] + m_plot2dZero;
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y2=spectra_.ref[j] + m_plot2dZero;
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if(gain2d>1.5) y2=spectra_.filter[j] + m_plot2dZero;
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}
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if(i==iz-1) painter2D.drawPolyline(LineBuf,j);
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@ -51,6 +51,8 @@ WideGraph::WideGraph(QSettings * settings, QWidget *parent) :
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m_bFlatten=m_settings->value("Flatten",true).toBool();
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ui->cbFlatten->setChecked(m_bFlatten);
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ui->widePlot->setFlatten(m_bFlatten);
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m_bRef=m_settings->value("UseRef",false).toBool();
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ui->cbRef->setChecked(m_bRef);
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ui->widePlot->setBreadth(m_settings->value("PlotWidth",1000).toInt());
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ui->bppSpinBox->setValue(n);
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m_nsmo=m_settings->value("SmoothYellow",1).toInt();
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@ -130,6 +132,7 @@ void WideGraph::saveSettings() //saveS
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m_settings->setValue ("UserPalette", QVariant::fromValue (m_userPalette.colours ()));
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m_settings->setValue ("Fmin", m_fMin);
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m_settings->setValue("Flatten",m_bFlatten);
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m_settings->setValue("UseRef",m_bRef);
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m_settings->endGroup ();
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}
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@ -377,9 +380,22 @@ void WideGraph::on_paletteComboBox_activated (QString const& palette) //palet
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void WideGraph::on_cbFlatten_toggled(bool b) //Flatten On/Off
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{
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m_bFlatten=b;
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if(m_bRef and m_bFlatten) {
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m_bRef=false;
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ui->cbRef->setChecked(false);
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}
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ui->widePlot->setFlatten(m_bFlatten);
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}
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void WideGraph::on_cbRef_toggled(bool b)
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{
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m_bRef=b;
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if(m_bRef and m_bFlatten) {
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m_bFlatten=false;
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ui->cbFlatten->setChecked(false);
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}
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}
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void WideGraph::on_adjust_palette_push_button_clicked (bool) //Adjust Palette
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{
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try
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@ -404,6 +420,11 @@ bool WideGraph::flatten() //Flatten
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return m_bFlatten;
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}
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bool WideGraph::useRef() //Flatten
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{
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return m_bRef;
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}
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void WideGraph::on_gainSlider_valueChanged(int value) //Gain
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{
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ui->widePlot->setPlotGain(value);
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@ -40,6 +40,7 @@ public:
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void setModeTx(QString modeTx);
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void setLockTxFreq(bool b);
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bool flatten();
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bool useRef();
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void setTol(int n);
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int smoothYellow();
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void setRxBand(QString band);
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@ -68,6 +69,7 @@ private slots:
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void on_fStartSpinBox_valueChanged(int n);
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void on_paletteComboBox_activated(const QString &palette);
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void on_cbFlatten_toggled(bool b);
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void on_cbRef_toggled(bool b);
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void on_adjust_palette_push_button_clicked (bool);
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void on_gainSlider_valueChanged(int value);
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void on_zeroSlider_valueChanged(int value);
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@ -99,6 +101,7 @@ private:
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bool m_lockTxFreq;
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bool m_bFlatten;
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bool m_bRef;
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bool m_bHaveTransmitted; //Set true at end of a WSPR transmission
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QString m_mode;
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@ -562,14 +562,14 @@
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<item>
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<widget class="QCheckBox" name="cbFlatten">
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<property name="text">
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<string>Flat</string>
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<string>Flatten</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QCheckBox" name="cbRef">
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<property name="text">
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<string>Ref</string>
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<string>Ref Spec</string>
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</property>
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</widget>
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</item>
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