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https://github.com/saitohirga/WSJT-X.git
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Working on a better way to get DT, f0, f1, f2, ...
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2772 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
parent
dc303a2d65
commit
c15a98004e
@ -5,7 +5,7 @@ program jt9sim
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parameter (NMAX=1800*12000)
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integer ihdr(11)
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integer*2 iwave !Generated waveform (no noise)
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real*8 f0,f,dt,twopi,phi,dphi,baud,fspan
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real*8 f0,f,dt,twopi,phi,dphi,baud,fspan,fsample,freq
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character msg*22,msg0*22,message*22,msgsent*22,arg*8,fname*11
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integer*4 i4tone(85) !Channel symbols (values 0-8)
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@ -106,7 +106,7 @@ program jt9sim
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1020 format(i3,i4,f10.3,f7.1,2x,a22)
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phi=0.
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baud=12000.0/nsps
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baud=12000.d0/nsps
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k=12000 !Start audio at t = 1.0 s
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do isym=1,85
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freq=f + i4tone(isym)*baud
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193
lib/jt9test.f90
193
lib/jt9test.f90
@ -1,120 +1,181 @@
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program jt9test
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! Decoder for JT9.
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! Decoder for JT9. Can run stand-alone, reading data from *.wav files;
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! or as the back end of wsjt-x, with data placed in a shared memory region.
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! NB: For unknown reason, ***MUST*** be compiled by g95 with -O0 !!!
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character*80 arg,infile
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parameter (NMAX=1800*12000) !Total sample intervals per 30 minutes
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parameter (NDMAX=1800*1500) !Sample intervals at 1500 Hz rate
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parameter (NSMAX=22000) !Max length of saved spectra
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integer*4 ihdr(11)
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real*4 s(NSMAX)
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real*4 ccfred(NSMAX)
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logical*1 lstrong(0:1023)
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integer*1 i1SoftSymbols(207)
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character*22 msg
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character*33 line
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character*80 fmt,fmt14
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real*4 ccfred(NSMAX)
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integer*1 i1SoftSymbols(207)
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integer ii(1)
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complex c0(NDMAX)
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! common/jt9com/ss0(184,NSMAX),savg(NSMAX),id2(NMAX),nutc0,ndiskdat, &
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! ntr,nfqso,newdat,npts80,nfb,ntol,kin,nzhsym,nsynced,ndecoded
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! common/jt9comB/ss(184,NSMAX),c0
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integer*2 id2
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complex c0
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complex c1(0:2700000)
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common/jt9com/ss(184,NSMAX),savg(NSMAX),c0(NDMAX),id2(NMAX),nutc,ndiskdat, &
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ntr,mousefqso,newdat,nfa,nfb,ntol,kin,nzhsym,nsynced,ndecoded
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common/tracer/limtrace,lu
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nargs=iargc()
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if(nargs.lt.1) then
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print*,'Usage: jt9 TRperiod file1 [file2 ...]'
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print*,' Reads data from *.wav files.'
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print*,''
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print*,' jt9 -s'
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print*,' Gets data from shared memory region.'
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go to 999
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endif
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call getarg(1,arg)
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if(arg(1:2).eq.'-s') then
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! call jt9a
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! call ftnquit
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go to 999
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endif
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read(arg,*) ntrperiod
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ifile1=2
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limtrace=0
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lu=12
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open(12,file='timer.out',status='unknown')
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open(13,file='decoded.txt',status='unknown')
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open(14,file='wsjtx_rx.log',status='unknown',position='append')
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call timer('decoder ',0)
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nfa=1000
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nfb=2000
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ntol=500
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nfqso=1500
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newdat=1
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nb=0
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nbslider=100
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limit=20000
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ndiskdat=1
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1 read(61,end=999) ipk,ia,ib,ccfred(ia:ib),nsps,npts8,c0(1:npts8)
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print*,ipk,ia,ib,nsps,npts8
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ntrMinutes=1
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nsynced=0
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ndecoded=0
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limit=200
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if(ndepth.ge.2) limit=2000
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if(ndepth.ge.3) limit=20000
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nsps=0
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if(ntrMinutes.eq.1) then
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do ifile=ifile1,nargs
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call getarg(ifile,infile)
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open(10,file=infile,access='stream',status='old',err=998)
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read(10) ihdr
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i1=index(infile,'.wav')
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read(infile(i1-4:i1-1),*,err=1) nutc0
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go to 2
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1 nutc0=0
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2 nsps=0
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if(ntrperiod.eq.1) then
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nsps=6912
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df3=1500.0/2048.0
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fmt='(i4.4,i4,i5,f6.1,f8.0,f6.1,3x,a22)'
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fmt14='(i4.4,i4,i5,f6.1,f8.0,f6.1,i8,3x,a22)'
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else if(ntrMinutes.eq.2) then
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nzhsym=181
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else if(ntrperiod.eq.2) then
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nsps=15360
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df3=1500.0/2048.0
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fmt='(i4.4,i4,i5,f6.1,f8.1,f6.2,3x,a22)'
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fmt14='(i4.4,i4,i5,f6.1,f8.1,f6.2,i8,3x,a22)'
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else if(ntrMinutes.eq.5) then
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nzhsym=178
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else if(ntrperiod.eq.5) then
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nsps=40960
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df3=1500.0/6144.0
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fmt='(i4.4,i4,i5,f6.1,f8.1,f6.2,3x,a22)'
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fmt14='(i4.4,i4,i5,f6.1,f8.1,f6.2,i8,3x,a22)'
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else if(ntrMinutes.eq.10) then
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nzhsym=172
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else if(ntrperiod.eq.10) then
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nsps=82944
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df3=1500.0/12288.0
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fmt='(i4.4,i4,i5,f6.1,f8.2,f6.2,3x,a22)'
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fmt14='(i4.4,i4,i5,f6.1,f8.2,f6.2,i8,3x,a22)'
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else if(ntrMinutes.eq.30) then
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nzhsym=171
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else if(ntrperiod.eq.30) then
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nsps=252000
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df3=1500.0/32768.0
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fmt='(i4.4,i4,i5,f6.1,f8.2,f6.2,3x,a22)'
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fmt14='(i4.4,i4,i5,f6.1,f8.2,f6.2,i8,3x,a22)'
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nzhsym=167
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endif
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if(nsps.eq.0) stop 'Error: bad TRperiod' !Better: return an error code###
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if(nsps.eq.0) stop 'Error: bad TRperiod'
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kstep=nsps/2
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tstep=kstep/12000.0
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k=0
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nhsym0=-999
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npts=(60*ntrperiod-6)*12000
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if(ifile.eq.ifile1) then
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open(12,file='timer.out',status='unknown')
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call timer('jt9 ',0)
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endif
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! do i=1,npts
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! id2(i)=100.0*sin(6.283185307*1600.0*i/12000.0)
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! enddo
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do iblk=1,npts/kstep
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k=iblk*kstep
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call timer('read_wav',0)
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read(10,end=10) id2(k-kstep+1:k)
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call timer('read_wav',1)
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nhsym=(k-2048)/kstep
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if(nhsym.ge.1 .and. nhsym.ne.nhsym0) then
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! Emit signal readyForFFT
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ingain=0
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call timer('symspec ',0)
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call symspec(k,ntrperiod,nsps,ingain,nb,nbslider,pxdb, &
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s,ccfred,df3,ihsym,nzap,slimit,lstrong,npts8)
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call timer('symspec ',1)
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nhsym0=nhsym
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if(ihsym.ge.184) go to 10
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endif
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enddo
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10 close(10)
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nsps8=nsps/8
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c1(0:npts8-1)=conjg(c0(1:npts8))
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call test9(c1,npts8,nsps8)
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iz=1000.0/df3
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nutc=nutc0
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call timer('sync9 ',0)
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call sync9(ss,nzhsym,tstep,df3,ntol,nfqso,ccfred,ia,ib,ipk) !Get sync, freq
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call timer('sync9 ',1)
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fgood=0.
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df8=1500.0/(nsps/8)
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sbest=0.
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10 ii=maxloc(ccfred(ia:ib))
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i=ii(1) + ia - 1
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do i=ia,ib
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f=(i-1)*df3
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if((i.eq.ipk .or. ccfred(i).ge.3.0) .and. abs(f-fgood).gt.10.0*df8) then
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if((i.eq.ipk .or. ccfred(i).ge.3.0) .and. f.gt.fgood+10.0*df8) then
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call timer('spec9 ',0)
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call spec9(c0,npts8,nsps,f,fpk,xdt,snr,i1SoftSymbols)
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call spec9(c0,npts8,nsps,f,fpk,xdt,snrdb,i1SoftSymbols)
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call timer('spec9 ',1)
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call timer('decode9 ',0)
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call decode9(i1SoftSymbols,limit,nlim,msg)
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call timer('decode9 ',1)
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snr=snrdb
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sync=ccfred(i) - 2.0
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if(sync.lt.0.0) sync=0.0
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nsync=sync
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if(nsync.gt.10) nsync=10
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nsnr=nint(snr)
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drift=0.0
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width=0.0
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if(ccfred(i).gt.sbest .and. fgood.eq.0.0) then
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sbest=ccfred(i)
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write(line,fmt) nutc,nsync,nsnr,xdt,1000.0+fpk,drift
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write(line,1010) nutc,nsync,nsnr,xdt,1000.0+fpk,width
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if(nsync.gt.0) nsynced=1
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endif
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if(msg.ne.' ') then
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write(13,fmt) nutc,nsync,nsnr,xdt,1000.0+fpk,drift,msg
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write(14,fmt14) nutc,nsync,nsnr,xdt,1000.0+fpk,drift,nlim,msg
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write(*,1010) nutc,nsync,nsnr,xdt,1000.0+fpk,width,msg
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1010 format(i4.4,i4,i5,f6.1,f8.2,f6.2,3x,a22)
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fgood=f
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nsynced=1
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ndecoded=1
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ccfred(max(ia,i):min(ib,i+8))=0.
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endif
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endif
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ccfred(i)=0.
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if(maxval(ccfred(ia:ib)).gt.3.0) go to 10
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enddo
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if(fgood.eq.0.0) then
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write(13,1020) line
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write(14,1020) line
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write(*,1020) line
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1020 format(a33)
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endif
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call flush(13)
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call flush(14)
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go to 1
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enddo
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999 call timer('decoder ',1)
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call timer('decoder ',101)
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call timer('jt9 ',1)
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call timer('jt9 ',101)
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! call ftnquit
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go to 999
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end program jt9test
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998 print*,'Cannot open file:'
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print*,infile
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999 end program jt9test
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@ -99,7 +99,6 @@ subroutine spec9(c0,npts8,nsps,fpk0,fpk,xdt,snrdb,i1SoftSymbols)
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snrdb=db(t) - db(2500.0/df8) - 5.0
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m0=3
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ntones=8
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k=0
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do j=1,69
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smax=0.
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53
lib/test9.f90
Normal file
53
lib/test9.f90
Normal file
@ -0,0 +1,53 @@
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subroutine test9(c0,npts8,nsps8)
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parameter (NMAX=128*864)
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complex c0(0:npts8-1)
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complex c1(0:NMAX-1)
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complex c2(0:4096-1)
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complex z
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real p(0:3300)
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include 'jt9sync.f90'
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c1(0:npts8-1)=c0 !Copy c0 into c1
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c1(npts8:)=0. !Zero the rest of c1
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nfft1=NMAX !Forward FFT length
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call four2a(c1,nfft1,1,-1,1) !Forward FFT
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ndown=54 !Downsample factor
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nfft2=nfft1/ndown !Backward FFT length
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nh2=nfft2/2
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fac=1.e-5
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c2(0:nh2)=fac*c1(0:nh2)
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c2(nh2+1:nh2+nh2-1)=fac*c1(nfft1-nh2+1:nfft1-1)
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call four2a(c2,nfft2,1,1,1) !Backward FFT
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nspsd=nsps8/ndown
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nz=npts8/ndown
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p=0.
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i0=5*nspsd
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do i=0,nz-1
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z=sum(c2(max(i-(nspsd-1),0):i)) !Integrate
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p(i0+i)=real(z)**2 + aimag(z)**2 !Symbol power at freq=0
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! write(51,3001) i,p(i)
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enddo
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iz=85*nspsd
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fac0=1.0/69.0
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fac1=1.0/16.0
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lagmax=13*nspsd
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do lag=0,lagmax
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ss=0.
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do i=0,iz-1
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if(isync(1+i/nspsd).eq.1) then
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ss=ss + fac1*p(i+lag) !Add the sync powers
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else
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ss=ss - fac0*p(i+lag) !Subtract the non-sync powers
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endif
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enddo
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write(52,3001) lag,ss
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3001 format(i5,f12.3)
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enddo
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return
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end subroutine test9
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@ -1,4 +1,4 @@
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//---------------------------------------------------------------- MainWindow
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//--------------------------------------------------------------- MainWindow
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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include "devsetup.h"
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