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Temporary code, to aid with a series of tests of the JT9 decoder.
This commit will serve as a benchmark for comparison with new code to be written. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3266 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor
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e00dd5fdb0
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@ -21,6 +21,12 @@ subroutine decoder(ss,c0,nstandalone)
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common/tracer/limtrace,lu
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save
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call system_clock(iclock0,iclock_rate,iclock_max) !###
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nfreqs0=0
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nfreqs1=0
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ndecodes0=0
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ndecodes1=0
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call timer('decoder ',0)
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open(13,file='decoded.txt',status='unknown')
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@ -112,11 +118,18 @@ subroutine decoder(ss,c0,nstandalone)
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(ccfred(i).lt.ccfred(i+1))) cycle
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if(nqd.eq.1 .or. &
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(ccfred(i).ge.ccflim .and. abs(f-fgood).gt.10.0*df8)) then
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if(nqd.eq.0) nfreqs0=nfreqs0+1
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if(nqd.eq.1) nfreqs1=nfreqs1+1
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call timer('softsym ',0)
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fpk=1000.0 + df3*(i-1)
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c1(1:npts8)=conjg(c0(1:npts8))
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call softsym(c1,npts8,nsps8,fpk,syncpk,snrdb,xdt,freq,drift, &
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i1SoftSymbols)
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! c1(1:npts8)=conjg(c0(1:npts8))
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! call softsym(c1,npts8,nsps8,fpk,syncpk,snrdb,xdt,freq,drift, &
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! i1SoftSymbols)
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call softsym(c0,npts8,nsps8,newdat,fpk,syncpk,snrdb,xdt,freq, &
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drift,i1SoftSymbols)
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call timer('softsym ',1)
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call timer('decode9 ',0)
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@ -129,11 +142,19 @@ subroutine decoder(ss,c0,nstandalone)
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if(nsync.gt.10) nsync=10
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nsnr=nint(snrdb)
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ndrift=nint(drift/df3)
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write(38,3002) nutc,freq,ccfred(i),nlim,msg
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3002 format(i4.4,2f8.1,i9,2x,a22)
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if(msg.ne.' ') then
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if(nqd.eq.0) ndecodes0=ndecodes0+1
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if(nqd.eq.1) ndecodes1=ndecodes1+1
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write(*,fmt) nutc,nsync,nsnr,xdt,freq,ndrift,msg
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write(13,fmt) nutc,nsync,nsnr,xdt,freq,ndrift,msg
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! write(14,1014) nutc,nsync,nsnr,xdt,freq,ndrift,ccfred(i),nlim,msg
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!1014 format(i4.4,i4,i5,f6.1,f8.0,i4,f9.1,i9,3x,a22)
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iaa=max(1,i-3)
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ibb=min(NSMAX,i+11)
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fgood=f
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@ -158,5 +179,12 @@ subroutine decoder(ss,c0,nstandalone)
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call timer('decoder ',1)
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if(nstandalone.eq.0) call timer('decoder ',101)
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call system_clock(iclock,iclock_rate,iclock_max)
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write(39,3001) nutc,nfreqs1,nfreqs0,ndecodes1,ndecodes0, &
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float(iclock-iclock0)/iclock_rate
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3001 format(5i8,f10.3)
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call flush(38)
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call flush(39)
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return
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end subroutine decoder
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@ -1,4 +1,4 @@
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subroutine downsam9(c0,npts8,nsps8,nspsd,fpk,c2,nz2)
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subroutine downsam9(c0,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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!Downsample to nspsd samples per symbol, info centered at fpk
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@ -7,29 +7,36 @@ subroutine downsam9(c0,npts8,nsps8,nspsd,fpk,c2,nz2)
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complex c1(0:NMAX-1)
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complex c2(0:4096-1)
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real s(1000)
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save
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fac=1.e-4
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c1(0:npts8-1)=fac*c0 !Copy c0 into c1
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do i=1,npts8-1,2
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c1(i)=-c1(i)
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enddo
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c1(npts8:)=0. !Zero the rest of c1
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nfft1=128*nsps8 !Forward FFT length
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nh1=nfft1/2
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df1=1500.0/nfft1
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call four2a(c1,nfft1,1,-1,1) !Forward FFT
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nadd=1.0/df1
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j=250/df1
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s=0.
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do i=1,1000
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do n=1,nadd
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j=j+1
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s(i)=s(i)+real(c1(j))**2 + aimag(c1(j))**2
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if(newdat.eq.1) then
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fac=1.e-4
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do i=0,npts8-1,2
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c1(i)=fac*conjg(c0(i))
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c1(i+1)=-fac*conjg(c0(i+1))
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enddo
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enddo
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call pctile(s,1000,40,avenoise)
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c1(npts8:)=0. !Zero the rest of c1
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call four2a(c1,nfft1,1,-1,1) !Forward FFT
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nadd=1.0/df1
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j=250/df1
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s=0.
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do i=1,1000
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do n=1,nadd
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j=j+1
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s(i)=s(i)+real(c1(j))**2 + aimag(c1(j))**2
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enddo
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! write(37,3001) i+1000,s(i),db(s(i)),nadd
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!3001 format(i5,2f12.3,i8)
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enddo
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call pctile(s,1000,40,avenoise)
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newdat=0
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endif
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ndown=nsps8/16 !Downsample factor
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nfft2=nfft1/ndown !Backward FFT length
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nh2=nfft2/2
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@ -1,4 +1,4 @@
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subroutine softsym(c0,npts8,nsps8,fpk,syncpk,snrdb,xdt,freq,drift, &
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subroutine softsym(c0,npts8,nsps8,newdat,fpk,syncpk,snrdb,xdt,freq,drift, &
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i1SoftSymbols)
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! Compute the soft symbols
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@ -16,7 +16,7 @@ subroutine softsym(c0,npts8,nsps8,fpk,syncpk,snrdb,xdt,freq,drift, &
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ndown=nsps8/nspsd
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! Mix, low-pass filter, and downsample to 16 samples per symbol
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call downsam9(c0,npts8,nsps8,nspsd,fpk,c2,nz2)
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call downsam9(c0,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
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call peakdt9(c2,nz2,nsps8,nspsd,c3,nz3,xdt) !Find DT
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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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