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Add basic ap functionality. Needs testing for decoding speed.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7806 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke
parent
a985952057
commit
8d8f8b9bce
@ -1,4 +1,4 @@
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subroutine ft8b(dd0,newdat,nfqso,ndepth,icand,sync0,f1,xdt,nharderrors, &
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subroutine ft8b(dd0,newdat,nfqso,ndepth,icand,sync0,f1,xdt,apsym,nharderrors, &
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dmin,nbadcrc,message,xsnr)
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use timer_module, only: timer
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@ -9,14 +9,17 @@ subroutine ft8b(dd0,newdat,nfqso,ndepth,icand,sync0,f1,xdt,nharderrors, &
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real a(5)
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real s1(0:7,ND),s2(0:7,NN)
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real ps(0:7)
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real rxdata(3*ND),llr(3*ND) !Soft symbols
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real rxdata(3*ND),llr(3*ND),llrap(3*ND) !Soft symbols
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real dd0(15*12000)
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integer*1 decoded(KK),apmask(3*ND),cw(3*ND)
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integer*1 msgbits(KK)
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integer apsym(KK),rr73(11)
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integer itone(NN)
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complex cd0(3200)
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complex ctwk(32)
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complex csymb(32)
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logical newdat
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data rr73/-1,1,1,1,1,1,1,-1,1,1,-1/
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max_iterations=40
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norder=2
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@ -106,34 +109,69 @@ subroutine ft8b(dd0,newdat,nfqso,ndepth,icand,sync0,f1,xdt,nharderrors, &
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rxdata=rxdata/rxsig
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ss=0.84
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llr=2.0*rxdata/(ss*ss)
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apmask=0
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cw=0
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call timer('bpd174 ',0)
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call bpdecode174(llr,apmask,max_iterations,decoded,cw,nharderrors)
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call timer('bpd174 ',1)
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dmin=0.0
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if(nharderrors.lt.0) then
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call timer('osd174 ',0)
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call osd174(llr,norder,decoded,cw,nharderrors,dmin)
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call timer('osd174 ',1)
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endif
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nbadcrc=1
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message=' '
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xsnr=-99.0
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if(count(cw.eq.0).eq.174) go to 900 !Reject the all-zero codeword
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if( nharderrors.ge.0 .and. dmin.le.30.0 .and. nharderrors .lt. 30) then
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call chkcrc12a(decoded,nbadcrc)
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else
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nharderrors=-1
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go to 900
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endif
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if(nbadcrc.eq.0) then
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call extractmessage174(decoded,message,ncrcflag,recent_calls,nrecent)
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call genft8(message,msgsent,itone)
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do iap=0,3
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if(iap.eq.0) then
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apmask=0
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apmask(160:162)=1
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llrap=llr
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llrap(160:162)=5.0*apsym(73:75)/ss
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elseif(iap.eq.1) then
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apmask=0
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apmask(88:115)=1 ! mycall
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apmask(160:162)=1 ! 3 extra bits
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llrap=0.0
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llrap(88:115)=5.0*apsym(1:28)/ss
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llrap(160:162)=5.0*apsym(73:75)/ss
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where(apmask.eq.0) llrap=llr
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elseif(iap.eq.2) then
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apmask=0
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apmask(88:115)=1 ! mycall
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apmask(116:143)=1 ! hiscall
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apmask(160:162)=1 ! 3 extra bits
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llrap=0.0
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llrap(88:143)=5.0*apsym(1:56)/ss
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llrap(160:162)=5.0*apsym(73:75)/ss
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where(apmask.eq.0) llrap=llr
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elseif(iap.eq.3) then
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apmask=0
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apmask(88:115)=1 ! mycall
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apmask(116:143)=1 ! hiscall
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apmask(144:154)=1 ! RRR or 73
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apmask(160:162)=1 ! 3 extra bits
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llrap=0.0
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llrap(88:143)=5.0*apsym(1:56)/ss
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llrap(144:154)=5.0*rr73/ss
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llrap(160:162)=5.0*apsym(73:75)/ss
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where(apmask.eq.0) llrap=llr
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endif
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cw=0
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call timer('bpd174 ',0)
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call bpdecode174(llrap,apmask,max_iterations,decoded,cw,nharderrors)
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call timer('bpd174 ',1)
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dmin=0.0
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if(nharderrors.lt.0) then
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call timer('osd174 ',0)
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call osd174(llr,norder,decoded,cw,nharderrors,dmin)
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call timer('osd174 ',1)
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endif
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nbadcrc=1
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message=' '
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xsnr=-99.0
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if(count(cw.eq.0).eq.174) cycle !Reject the all-zero codeword
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if( nharderrors.ge.0 .and. dmin.le.30.0 .and. nharderrors .lt. 30) then
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call chkcrc12a(decoded,nbadcrc)
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else
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nharderrors=-1
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cycle
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endif
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if(nbadcrc.eq.0) then
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call extractmessage174(decoded,message,ncrcflag,recent_calls,nrecent)
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call genft8(message,msgsent,msgbits,itone)
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! call subtractft8(dd0,itone,f1,xdt2)
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xsig=0.0
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xnoi=0.0
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do i=1,79
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xsig=0.0
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xnoi=0.0
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do i=1,79
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xsig=xsig+s2(itone(i),i)**2
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ios=mod(itone(i)+4,7)
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xnoi=xnoi+s2(ios,i)**2
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@ -142,10 +180,10 @@ subroutine ft8b(dd0,newdat,nfqso,ndepth,icand,sync0,f1,xdt,nharderrors, &
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if( xnoi.gt.0 .and. xnoi.lt.xsig ) xsnr=xsig/xnoi-1.0
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xsnr=10.0*log10(xsnr)-27.0
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if( xsnr .lt. -24.0 ) xsnr=-24.0
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! write(50,3050) icand,sync0,f1,xdt,nharderrors,dmin,message
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!3050 format(i3,3f10.3,i5,f10.3,2x,a22)
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endif
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900 continue
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! write(50,3050) icand,sync0,f1,xdt,nharderrors,dmin,message,iap
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!3050 format(i3,3f10.3,i5,f10.3,2x,a22,i3)
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return
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endif
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enddo
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return
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end subroutine ft8b
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@ -11,6 +11,7 @@ program ft8sim
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complex c0(0:NMAX-1)
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complex c(0:NMAX-1)
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integer itone(NN)
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integer*1 msgbits(KK)
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integer*2 iwave(NMAX) !Generated full-length waveform
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! Get command-line argument(s)
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@ -44,11 +45,16 @@ program ft8sim
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if(snrdb.gt.90.0) sig=1.0
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txt=NN*NSPS/12000.0
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call genft8(msg,msgsent,itone) !Source-encode, then get itone()
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call genft8(msg,msgsent,msgbits,itone) !Source-encode, then get itone()
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write(*,1000) f0,xdt,txt,snrdb,bw,msgsent
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1000 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, &
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' BW:',f4.1,2x,a22)
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write(*,'(28i1,1x,28i1)') msgbits(1:56)
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write(*,'(16i1)') msgbits(57:72)
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write(*,'(3i1)') msgbits(73:75)
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write(*,'(12i1)') msgbits(76:87)
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! call sgran()
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c=0.
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do ifile=1,nfiles
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@ -1,4 +1,4 @@
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subroutine genft8(msg,msgsent,itone)
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subroutine genft8(msg,msgsent,msgbits,itone)
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! Encode an FT8 message, producing array itone().
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@ -36,7 +36,7 @@ subroutine genft8(msg,msgsent,itone)
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1003 format(12b6.6,b3.3,b12.12)
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read(cbits,1004) msgbits
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1004 format(87i1)
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call encode174(msgbits,codeword) !Encode the test message
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! Message structure: S7 D29 S7 D29 S7
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@ -23,7 +23,7 @@ module ft8_decode
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contains
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subroutine decode(this,callback,iwave,nfqso,newdat,nutc,nfa, &
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nfb,nagain,ndepth,nsubmode,mycall,hiscall,hisgrid)
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nfb,nagain,ndepth,nsubmode,mycall12,hiscall12,hisgrid6)
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!use wavhdr
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use timer_module, only: timer
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include 'fsk4hf/ft8_params.f90'
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@ -35,9 +35,10 @@ contains
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real candidate(3,200)
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real dd(15*12000)
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logical, intent(in) :: newdat, nagain
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character*12 mycall, hiscall
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character*6 hisgrid
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character*12 mycall12, hiscall12
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character*6 hisgrid6
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integer*2 iwave(15*12000)
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integer apsym(KK)
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character datetime*13,message*22
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save s,dd
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@ -45,8 +46,10 @@ contains
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write(datetime,1001) nutc !### TEMPORARY ###
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1001 format("000000_",i6.6)
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dd=iwave
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if(index(hisgrid6," ").eq.0) hisgrid6="EN50"
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call ft8apset(mycall12,hiscall12,hisgrid6,apsym)
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dd=iwave
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call timer('sync8 ',0)
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call sync8(dd,nfa,nfb,nfqso,s,candidate,ncand)
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call timer('sync8 ',1)
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@ -59,7 +62,7 @@ contains
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xdt=candidate(2,icand)
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nsnr0=min(99,nint(10.0*log10(sync) - 25.5)) !### empirical ###
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call timer('ft8b ',0)
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call ft8b(dd,newdat,nfqso,ndepth,icand,sync,f1,xdt,nharderrors, &
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call ft8b(dd,newdat,nfqso,ndepth,icand,sync,f1,xdt,apsym,nharderrors, &
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dmin,nbadcrc,message,xsnr)
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nsnr=xsnr
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xdt=xdt-0.6
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@ -82,3 +85,23 @@ contains
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end subroutine decode
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end module ft8_decode
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subroutine ft8apset(mycall12,hiscall12,hisgrid6,apsym)
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parameter(NAPM=4,KK=87)
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character*12 mycall12,hiscall12
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character*22 msg,msgsent
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character*6 mycall,hiscall
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character*6 hisgrid6
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character*4 hisgrid
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integer apsym(KK)
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integer*1 msgbits(KK)
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integer itone(KK)
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mycall=mycall12(1:6)
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hiscall=hiscall12(1:6)
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hisgrid=hisgrid6(1:4)
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msg=mycall//' '//hiscall//' '//hisgrid
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call genft8(msg,msgsent,msgbits,itone)
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apsym=2*msgbits-1
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return
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end subroutine ft8apset
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@ -50,7 +50,7 @@ program jt9
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'THREADS'), &
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option ('jt65', .false., '6', 'JT65 mode', ''), &
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option ('jt9', .false., '9', 'JT9 mode', ''), &
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option ('ft9', .false., '8', 'FT8 mode', ''), &
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option ('ft8', .false., '8', 'FT8 mode', ''), &
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option ('jt4', .false., '4', 'JT4 mode', ''), &
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option ('qra64', .false., 'q', 'QRA64 mode', ''), &
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option ('sub-mode', .true., 'b', 'Sub mode, default SUBMODE=A', 'A'), &
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@ -264,9 +264,9 @@ program jt9
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shared_data%params%minsync=0 !### TEST ONLY
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! shared_data%params%nfqso=1500 !### TEST ONLY
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mycall="G3WDG " !### TEST ONLY
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hiscall="VK7MO " !### TEST ONLY
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hisgrid="QE37 " !### TEST ONLY
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! mycall="G3WDG " !### TEST ONLY
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! hiscall="VK7MO " !### TEST ONLY
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! hisgrid="QE37 " !### TEST ONLY
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if(mode.eq.164 .and. nsubmode.lt.100) nsubmode=nsubmode+100
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shared_data%params%naggressive=0
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@ -75,7 +75,7 @@ extern "C" {
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int len1, int len2, int len3, int len4, int len5);
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// float s[], int* jh, char line[], char mygrid[],
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void genft8_(char* msg, char* msgsent, int itone[], int len1, int len2);
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void genft8_(char* msg, char* msgsent, char ft8msgbits[], int itone[], int len1, int len2);
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void gen4_(char* msg, int* ichk, char* msgsent, int itone[],
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int* itext, int len1, int len2);
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@ -132,6 +132,7 @@ extern "C" {
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}
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int volatile itone[NUM_ISCAT_SYMBOLS]; //Audio tones for all Tx symbols
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char volatile ft8msgbits[75]; //packed 75 bit ft8 message
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int volatile icw[NUM_CW_SYMBOLS]; //Dits for CW ID
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struct dec_data dec_data; // for sharing with Fortran
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@ -3059,7 +3060,7 @@ void MainWindow::guiUpdate()
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len1, len1);
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if(m_mode=="WSPR-LF") genwspr_fsk8_(message, msgsent, const_cast<int *> (itone),
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len1, len1);
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if(m_mode=="FT8") genft8_(message, msgsent, const_cast<int *> (itone), len1, len1);
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if(m_mode=="FT8") genft8_(message, msgsent, const_cast<char *> (ft8msgbits), const_cast<int *> (itone), len1, len1);
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if(m_modeTx=="MSK144") {
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bool bcontest=m_config.contestMode();
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char MyGrid[6];
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