2015-04-22 17:48:03 +00:00
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subroutine avg4(nutc,snrsync,dtxx,flip,nfreq,mode4,ntol,ndepth,neme, &
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mycall,hiscall,hisgrid,nfanoave,avemsg,qave,deepave,ichbest,ndeepave)
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! Decodes averaged JT4 data
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use jt4
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character*22 avemsg,deepave,deepbest
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character mycall*12,hiscall*12,hisgrid*6
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character*1 csync,cused(64)
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real sym(207,7)
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integer iused(64)
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logical first
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data first/.true./
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save
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if(first) then
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iutc=-1
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nfsave=0
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dtdiff=0.2
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first=.false.
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endif
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do i=1,64
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if(nutc.eq.iutc(i) .and. abs(nhz-nfsave(i)).le.ntol) go to 10
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enddo
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! Save data for message averaging
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iutc(nsave)=nutc
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syncsave(nsave)=snrsync
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dtsave(nsave)=dtxx
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nfsave(nsave)=nfreq
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flipsave(nsave)=flip
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ppsave(1:207,1:7,nsave)=rsymbol(1:207,1:7)
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10 sym=0.
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syncsum=0.
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dtsum=0.
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nfsum=0
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nsum=0
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do i=1,64
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cused(i)='.'
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if(iutc(i).lt.0) cycle
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if(mod(iutc(i),2).ne.mod(nutc,2)) cycle !Use only same (odd/even) sequence
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if(abs(dtxx-dtsave(i)).gt.dtdiff) cycle !DT must match
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if(abs(nfreq-nfsave(i)).gt.ntol) cycle !Freq must match
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if(flip.ne.flipsave(i)) cycle !Sync (*/#) must match
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sym(1:207,1:7)=sym(1:207,1:7) + ppsave(1:207,1:7,i)
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syncsum=syncsum + syncsave(i)
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dtsum=dtsum + dtsave(i)
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nfsum=nfsum + nfsave(i)
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cused(i)='$'
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nsum=nsum+1
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iused(nsum)=i
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enddo
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if(nsum.lt.64) iused(nsum+1)=0
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syncave=0.
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dtave=0.
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fave=0.
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if(nsum.gt.0) then
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sym=sym/nsum
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syncave=syncsum/nsum
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dtave=dtsum/nsum
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fave=float(nfsum)/nsum
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endif
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! rewind 80
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do i=1,nsave
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csync='*'
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if(flipsave(i).lt.0.0) csync='#'
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2015-05-27 13:08:28 +00:00
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write(14,1000) cused(i),iutc(i),syncsave(i)-5.0,dtsave(i),nfsave(i),csync
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2015-04-22 17:48:03 +00:00
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1000 format(a1,i5.4,f6.1,f6.2,i6,1x,a1)
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enddo
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sqt=0.
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sqf=0.
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do j=1,64
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i=iused(j)
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if(i.eq.0) exit
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csync='*'
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if(flipsave(i).lt.0.0) csync='#'
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! write(80,3001) i,iutc(i),syncsave(i),dtsave(i),nfsave(i),csync
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!3001 format(i3,i6.4,f6.1,f6.2,i6,1x,a1)
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sqt=sqt + (dtsave(i)-dtave)**2
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sqf=sqf + (nfsave(i)-fave)**2
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enddo
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rmst=0.
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rmsf=0.
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if(nsum.ge.2) then
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rmst=sqrt(sqt/(nsum-1))
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rmsf=sqrt(sqf/(nsum-1))
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endif
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! write(80,3002)
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!3002 format(16x,'----- -----')
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! write(80,3003) dtave,nint(fave)
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! write(80,3003) rmst,nint(rmsf)
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!3003 format(15x,f6.2,i6)
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! flush(80)
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! nadd=nused*mode4
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kbest=ich1
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do k=ich1,ich2
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call extract4(sym(1,k),ncount,avemsg) !Do the Fano decode
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nfanoave=0
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if(ncount.ge.0) then
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ichbest=k
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nfanoave=nsum
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go to 900
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endif
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if(nch(k).ge.mode4) exit
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enddo
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deepave=' '
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qave=0.
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! Possibly should pass nadd=nused, also ?
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if(ndepth.ge.3) then
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flipx=1.0 !Normal flip not relevant for ave msg
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qbest=0.
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do k=ich1,ich2
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call deep4(sym(2,k),neme,flipx,mycall,hiscall,hisgrid,deepave,qave)
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! write(82,3101) nutc,sym(51:53,k),flipx,k,qave,deepave
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!3101 format(i4.4,4f8.1,i3,f7.2,2x,a22)
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if(qave.gt.qbest) then
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qbest=qave
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deepbest=deepave
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kbest=k
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ndeepave=nsum
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endif
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if(nch(k).ge.mode4) exit
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enddo
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deepave=deepbest
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qave=qbest
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ichbest=kbest
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endif
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900 return
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end subroutine avg4
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