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https://github.com/saitohirga/WSJT-X.git
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9e73f87218
MAP65 v2.3.0, r631, as checked out from the SVN repository on pulsar.princeton.edu. If all goes well with this commit, subsequent MAP65 development will use the Berlios repository. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@2461 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
439 lines
16 KiB
Fortran
439 lines
16 KiB
Fortran
subroutine map65a(dd,ss,savg,newdat,nutc,fcenter,ntol,idphi,nfa,nfb, &
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mousedf,mousefqso,nagain,ndecdone,ndiskdat,nfshift,ndphi, &
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nfcal,nkeep,mcall3b,nsave,nxant,rmsdd,mycall,mygrid, &
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neme,ndepth,hiscall,hisgrid,nhsym,nfsample,nxpol,mode65)
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! Processes timf2 data from Linrad to find and decode JT65 signals.
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parameter (MAXMSG=1000) !Size of decoded message list
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parameter (NSMAX=60*96000)
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parameter (NFFT=32768)
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real dd(4,NSMAX)
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real*4 ss(4,322,NFFT),savg(4,NFFT)
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real tavg(-50:50) !Temp for finding local base level
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real base(4) !Local basel level at 4 pol'ns
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real tmp (200) !Temp storage for pctile sorting
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real sig(MAXMSG,30) !Parameters of detected signals
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real a(5)
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real*8 fcenter
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character*22 msg(MAXMSG)
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character*3 shmsg0(4)
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character mycall*12,hiscall*12,mygrid*6,hisgrid*6,grid*6,cp*1
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integer indx(MAXMSG),nsiz(MAXMSG)
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logical done(MAXMSG)
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logical xpol
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character decoded*22,blank*22
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real short(3,NFFT) !SNR dt ipol for potential shorthands
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real qphi(12)
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common/c3com/ mcall3a
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common/testcom/ifreq
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data blank/' '/
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data shmsg0/'ATT','RO ','RRR','73 '/
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data nfile/0/,nutc0/-999/,nid/0/,ip000/1/,ip001/1/,mousefqso0/-999/
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save
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mcall3a=mcall3b
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mousefqso0=mousefqso
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xpol=(nxpol.ne.0)
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if(.not.xpol) ndphi=0
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!### Should use AppDir! ###
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! open(23,file='release/CALL3.TXT',status='unknown')
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open(23,file='CALL3.TXT',status='unknown')
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if(nutc.ne.nutc0) nfile=nfile+1
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nutc0=nutc
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df=96000.0/NFFT !df = 96000/NFFT = 2.930 Hz
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if(nfsample.eq.95238) df=95238.1/NFFT
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ftol=0.010 !Frequency tolerance (kHz)
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dphi=idphi/57.2957795
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foffset=0.001*(1270 + nfcal) !Offset from sync tone, plus CAL
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fqso=mousefqso + foffset - 0.5*(nfa+nfb) + nfshift !fqso at baseband (khz)
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iloop=0
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2 if(ndphi.eq.1) dphi=30*iloop/57.2957795
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do nqd=1,0,-1
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if(nqd.eq.1) then !Quick decode, at fQSO
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fa=1000.0*(fqso+0.001*mousedf) - ntol
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fb=1000.0*(fqso+0.001*mousedf) + ntol + 4*53.8330078
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else !Wideband decode at all freqs
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fa=-1000*0.5*(nfb-nfa) + 1000*nfshift
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fb= 1000*0.5*(nfb-nfa) + 1000*nfshift
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endif
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ia=nint(fa/df) + 16385
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ib=nint(fb/df) + 16385
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ia=max(51,ia)
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ib=min(32768-51,ib)
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km=0
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nkm=1
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nz=n/8
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freq0=-999.
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sync10=-999.
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fshort0=-999.
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syncshort0=-999.
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ntry=0
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short=0. !Zero the whole short array
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jpz=1
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if(xpol) jpz=4
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do i=ia,ib !Search over freq range
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freq=0.001*(i-16385)*df
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! Find the local base level for each polarization; update every 10 bins.
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if(mod(i-ia,10).eq.0) then
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do jp=1,jpz
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do ii=-50,50
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iii=i+ii
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if(iii.ge.1 .and. iii.le.32768) then
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tavg(ii)=savg(jp,iii)
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else
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write(13,*) ,'Error in iii:',iii,ia,ib,fa,fb
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flush(13)
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go to 999
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endif
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enddo
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call pctile(tavg,tmp,101,50,base(jp))
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enddo
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endif
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! Find max signal at this frequency
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smax=0.
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do jp=1,jpz
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if(savg(jp,i)/base(jp).gt.smax) then
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smax=savg(jp,i)/base(jp)
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jpmax=jp
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endif
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enddo
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if(smax.gt.1.1) then
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! Look for JT65 sync patterns and shorthand square-wave patterns.
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call timer('ccf65 ',0)
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! ssmax=4.0*(rmsdd/22.5)**2
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ssmax=savg(jpmax,i)
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call ccf65(ss(1,1,i),nhsym,ssmax,sync1,ipol,jpz,dt,flipk, &
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syncshort,snr2,ipol2,dt2)
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call timer('ccf65 ',1)
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! ########################### Search for Shorthand Messages #################
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! Is there a shorthand tone above threshold?
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thresh0=1.0
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! Use lower thresh0 at fQSO
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if(nqd.eq.1 .and. ntol.le.100) thresh0=0.
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if(syncshort.gt.thresh0) then
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! ### Do shorthand AFC here (or maybe after finding a pair?) ###
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short(1,i)=syncshort
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short(2,i)=dt2
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short(3,i)=ipol2
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! Check to see if lower tone of shorthand pair was found.
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do j=2,4
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i0=i-nint(j*mode65*10.0*(11025.0/4096.0)/df)
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! Should this be i0 +/- 1, or just i0?
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! Should we also insist that difference in DT be either 1.5 or -1.5 s?
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if(short(1,i0).gt.thresh0) then
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fshort=0.001*(i0-16385)*df
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noffset=0
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if(nqd.eq.1) noffset=nint(1000.0*(fshort-fqso)-mousedf)
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if(abs(noffset).le.ntol) then
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! Keep only the best candidate within ftol.
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!### NB: sync2 was not defined here!
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! sync2=syncshort !### try this ???
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if(fshort-fshort0.le.ftol .and. syncshort.gt.syncshort0 &
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.and. nkm.eq.2) km=km-1
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if(fshort-fshort0.gt.ftol .or. &
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syncshort.gt.syncshort0) then
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if(km.lt.MAXMSG) km=km+1
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sig(km,1)=nfile
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sig(km,2)=nutc
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sig(km,3)=fshort + 0.5*(nfa+nfb)
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sig(km,4)=syncshort
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sig(km,5)=dt2
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sig(km,6)=45*(ipol2-1)/57.2957795
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sig(km,7)=0
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sig(km,8)=snr2
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sig(km,9)=0
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sig(km,10)=0
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! sig(km,11)=rms0
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sig(km,12)=savg(ipol2,i)
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sig(km,13)=0
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sig(km,14)=0
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sig(km,15)=0
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sig(km,16)=0
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! sig(km,17)=0
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sig(km,18)=0
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msg(km)=shmsg0(j)
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fshort0=fshort
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syncshort0=syncshort
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nkm=2
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endif
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endif
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endif
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enddo
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endif
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! ########################### Search for Normal Messages ###########
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! Is sync1 above threshold?
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thresh1=1.0
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! Use lower thresh1 at fQSO
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if(nqd.eq.1 .and. ntol.le.100) thresh1=0.
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noffset=0
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if(nqd.eq.1) noffset=nint(1000.0*(freq-fqso)-mousedf)
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if(sync1.gt.thresh1 .and. abs(noffset).le.ntol) then
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! Keep only the best candidate within ftol.
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! (Am I deleting any good decodes by doing this?)
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if(freq-freq0.le.ftol .and. sync1.gt.sync10 .and. &
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nkm.eq.1) km=km-1
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if(freq-freq0.gt.ftol .or. sync1.gt.sync10) then
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nflip=nint(flipk)
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f00=(i-1)*df !Freq of detected sync tone (0-96000 Hz)
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ntry=ntry+1
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if((nqd.eq.1 .and. ntry.ge.40) .or. &
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(nqd.eq.0 .and. ntry.ge.400)) then
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! Too many calls to decode1a!
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write(*,*) '! Signal too strong? Decoding aborted.'
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write(13,*) 'Signal too strong? Decoding aborted.'
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call flush(13)
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go to 999
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endif
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call timer('decode1a',0)
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ifreq=i
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ikHz=nint(freq+0.5*(nfa+nfb)-foffset)-nfshift
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idf=nint(1000.0*(freq+0.5*(nfa+nfb)-foffset-(ikHz+nfshift)))
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call decode1a(dd,newdat,f00,nflip,mode65,nfsample,xpol, &
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mycall,hiscall,hisgrid,neme,ndepth,nqd,dphi, &
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nutc,ikHz,idf,ipol,sync2,a,dt,pol,nkv,nhist,qual,decoded)
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dt=dt+0.8 !### empirical tweak
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call timer('decode1a',1)
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if(km.lt.MAXMSG) km=km+1
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sig(km,1)=nfile
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sig(km,2)=nutc
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sig(km,3)=freq + 0.5*(nfa+nfb)
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sig(km,4)=sync1
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sig(km,5)=dt
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sig(km,6)=pol
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sig(km,7)=flipk
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sig(km,8)=sync2
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sig(km,9)=nkv
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sig(km,10)=qual
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! sig(km,11)=idphi
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sig(km,12)=savg(ipol,i)
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sig(km,13)=a(1)
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sig(km,14)=a(2)
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sig(km,15)=a(3)
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sig(km,16)=a(4)
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! sig(km,17)=a(5)
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sig(km,18)=nhist
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msg(km)=decoded
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freq0=freq
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sync10=sync1
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nkm=1
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endif
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endif
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endif
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!70 continue
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enddo
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if(nqd.eq.1) then
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nwrite=0
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do k=1,km
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decoded=msg(k)
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if(decoded.ne.' ') then
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nutc=sig(k,2)
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freq=sig(k,3)
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sync1=sig(k,4)
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dt=sig(k,5)
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npol=nint(57.2957795*sig(k,6))
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flip=sig(k,7)
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sync2=sig(k,8)
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nkv=sig(k,9)
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nqual=sig(k,10)
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! idphi=nint(sig(k,11))
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if(flip.lt.0.0) then
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do i=22,1,-1
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if(decoded(i:i).ne.' ') go to 8
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enddo
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stop 'Error in message format'
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8 if(i.le.18) decoded(i+2:i+4)='OOO'
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endif
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nkHz=nint(freq-foffset)-nfshift
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mhz=fcenter ! ... +fadd ???
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f0=mhz+0.001*nkHz
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ndf=nint(1000.0*(freq-foffset-(nkHz+nfshift)))
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nsync1=sync1
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nsync2=nint(10.0*log10(sync2)) - 40 !### empirical ###
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if(decoded(1:4).eq.'RO ' .or. decoded(1:4).eq.'RRR ' .or. &
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decoded(1:4).eq.'73 ') nsync2=nsync2-6
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nwrite=nwrite+1
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if(nxant.ne.0) then
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npol=npol-45
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if(npol.lt.0) npol=npol+180
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endif
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! If Tx station's grid is in decoded message, compute optimum TxPol
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i1=index(decoded,' ')
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i2=index(decoded(i1+1:),' ') + i1
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grid=' '
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if(i2.ge.8 .and. i2.le.18) grid=decoded(i2+1:i2+4)//'mm'
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ntxpol=0
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cp=' '
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if(xpol) then
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if(grid(1:1).ge.'A' .and. grid(1:1).le.'R' .and. &
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grid(2:2).ge.'A' .and. grid(2:2).le.'R' .and. &
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grid(3:3).ge.'0' .and. grid(3:3).le.'9' .and. &
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grid(4:4).ge.'0' .and. grid(4:4).le.'9') then
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ntxpol=mod(npol-nint(2.0*dpol(mygrid,grid))+720,180)
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if(nxant.eq.0) then
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cp='H'
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if(ntxpol.gt.45 .and. ntxpol.le.135) cp='V'
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else
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cp='/'
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if(ntxpol.ge.90 .and. ntxpol.lt.180) cp='\\'
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endif
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endif
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endif
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if(ndphi.eq.0) then
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write(*,1010) nkHz,ndf,npol,nutc,dt,nsync2, &
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decoded,nkv,nqual,ntxpol,cp
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1010 format('!',i3,i5,i4,i5.4,f5.1,i4,2x,a22,i5,i4,i5,1x,a1)
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else
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if(iloop.ge.1) qphi(iloop)=sig(k,10)
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write(*,1010) nkHz,ndf,npol,nutc,dt,nsync2, &
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decoded,nkv,nqual,30*iloop
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write(27,1011) 30*iloop,nkHz,ndf,npol,nutc, &
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dt,sync2,nkv,nqual,decoded
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1011 format(i3,i4,i5,i4,i5.4,f5.1,f7.1,i3,i5,2x,a22)
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endif
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endif
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enddo
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if(nwrite.eq.0) then
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write(*,1012) mousefqso,nutc
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1012 format('!',i3,9x,i5.4,' ')
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endif
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endif
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if(ndphi.eq.1 .and.iloop.lt.12) then
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iloop=iloop+1
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go to 2
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endif
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if(ndphi.eq.1 .and.iloop.eq.12) call getdphi(qphi)
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if(nagain.eq.1) go to 999
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enddo
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! Trim the list and produce a sorted index and sizes of groups.
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! (Should trimlist remove all but best SNR for given UTC and message content?)
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call trimlist(sig,km,ftol,indx,nsiz,nz)
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do i=1,km
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done(i)=.false.
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enddo
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j=0
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ilatest=-1
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do n=1,nz
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ifile0=0
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do m=1,nsiz(n)
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i=indx(j+m)
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ifile=sig(i,1)
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if(ifile.gt.ifile0 .and.msg(i).ne.blank) then
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ilatest=i
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ifile0=ifile
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endif
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enddo
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i=ilatest
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if(i.ge.1) then
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if(.not.done(i)) then
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done(i)=.true.
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nutc=sig(i,2)
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freq=sig(i,3)
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sync1=sig(i,4)
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dt=sig(i,5)
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npol=nint(57.2957795*sig(i,6))
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flip=sig(i,7)
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sync2=sig(i,8)
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nkv=sig(i,9)
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nqual=min(sig(i,10),10.0)
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! rms0=sig(i,11)
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do k=1,5
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a(k)=sig(i,12+k)
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enddo
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nhist=sig(i,18)
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decoded=msg(i)
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if(flip.lt.0.0) then
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do i=22,1,-1
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if(decoded(i:i).ne.' ') go to 10
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enddo
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stop 'Error in message format'
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10 if(i.le.18) decoded(i+2:i+4)='OOO'
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endif
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mhz=fcenter !... +fadd ???
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nkHz=nint(freq-foffset)-nfshift
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f0=mhz+0.001*nkHz
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ndf=nint(1000.0*(freq-foffset-(nkHz+nfshift)))
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ndf0=nint(a(1))
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ndf1=nint(a(2))
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ndf2=nint(a(3))
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nsync1=sync1
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nsync2=nint(10.0*log10(sync2)) - 40 !### empirical ###
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if(decoded(1:4).eq.'RO ' .or. decoded(1:4).eq.'RRR ' .or. &
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decoded(1:4).eq.'73 ') nsync2=nsync2-6
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if(nxant.ne.0) then
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npol=npol-45
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if(npol.lt.0) npol=npol+180
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endif
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! If Tx station's grid is in decoded message, compute optimum TxPol
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i1=index(decoded,' ')
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i2=index(decoded(i1+1:),' ') + i1
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grid=' '
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if(i2.ge.8 .and. i2.le.18) grid=decoded(i2+1:i2+4)//'mm'
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ntxpol=0
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cp=' '
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if(xpol) then
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if(grid(1:1).ge.'A' .and. grid(1:1).le.'R' .and. &
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grid(2:2).ge.'A' .and. grid(2:2).le.'R' .and. &
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grid(3:3).ge.'0' .and. grid(3:3).le.'9' .and. &
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grid(4:4).ge.'0' .and. grid(4:4).le.'9') then
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ntxpol=mod(npol-nint(2.0*dpol(mygrid,grid))+720,180)
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if(nxant.eq.0) then
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cp='H'
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if(ntxpol.gt.45 .and. ntxpol.le.135) cp='V'
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else
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cp='/'
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if(ntxpol.ge.90 .and. ntxpol.lt.180) cp='\\'
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endif
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endif
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endif
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write(26,1014) f0,ndf,ndf0,ndf1,ndf2,dt,npol,nsync1, &
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nsync2,nutc,decoded,nkv,nqual,nhist,cp
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write(21,1014) f0,ndf,ndf0,ndf1,ndf2,dt,npol,nsync1, &
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nsync2,nutc,decoded,nkv,nqual,nhist
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1014 format(f8.3,i5,3i3,f5.1,i4,i3,i4,i5.4,2x,a22,3i3,1x,a1)
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endif
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endif
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j=j+nsiz(n)
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enddo
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write(26,1015) nutc
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1015 format(39x,i4.4)
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call flush(21)
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|
call flush(26)
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call display(nkeep,ftol)
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ndecdone=2
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|
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999 close(23)
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ndphi=0
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|
nagain=0
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mcall3b=mcall3a
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return
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end subroutine map65a
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