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https://github.com/saitohirga/WSJT-X.git
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102 lines
2.7 KiB
Fortran
102 lines
2.7 KiB
Fortran
module q65
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parameter (NSTEP=8) !Time bins per symbol, in s1() and s1a()
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parameter (PLOG_MIN=-240.0) !List decoding threshold
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integer nsave,nlist,LL0
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integer listutc(10)
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integer apsym0(58),aph10(10)
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integer apmask(13),apsymbols(13)
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integer,dimension(22) :: isync = (/1,9,12,13,15,22,23,26,27,33,35, &
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38,46,50,55,60,62,66,69,74,76,85/)
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integer codewords(63,206)
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integer navg,ibwa,ibwb,ncw,nsps,mode_q65,istep,nsmo
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real,allocatable,save :: s1a(:,:) !Cumulative symbol spectra
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real sync(85) !sync vector
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contains
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subroutine q65_clravg
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s1a=0.
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navg=0
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return
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end subroutine q65_clravg
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subroutine q65_dec1(s3,nsubmode,b90ts,esnodb,irc,dat4,decoded)
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use packjt77
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real s3(1,1) !Silence compiler warning that wants to see a 2D array
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real s3prob(0:63,63) !Symbol-value probabilities
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integer dat4(13)
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character c77*77,decoded*37
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logical unpk77_success
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nFadingModel=1
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decoded=' '
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call q65_intrinsics_ff(s3,nsubmode,b90ts,nFadingModel,s3prob)
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call q65_dec_fullaplist(s3,s3prob,codewords,ncw,esnodb,dat4,plog,irc)
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if(sum(dat4).le.0) irc=-2
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if(irc.ge.0 .and. plog.gt.PLOG_MIN) then
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write(c77,1000) dat4(1:12),dat4(13)/2
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1000 format(12b6.6,b5.5)
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call unpack77(c77,0,decoded,unpk77_success) !Unpack to get msgsent
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else
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irc=-1
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endif
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return
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end subroutine q65_dec1
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subroutine q65_dec2(s3,nsubmode,b90ts,esnodb,irc,dat4,decoded)
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use packjt77
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real s3(1,1) !Silence compiler warning that wants to see a 2D array
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real s3prob(0:63,63) !Symbol-value probabilities
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integer dat4(13)
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character c77*77,decoded*37
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logical unpk77_success
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nFadingModel=1
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decoded=' '
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call q65_intrinsics_ff(s3,nsubmode,b90ts,nFadingModel,s3prob)
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call q65_dec(s3,s3prob,APmask,APsymbols,esnodb,dat4,irc)
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if(sum(dat4).le.0) irc=-2
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if(irc.ge.0) then
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write(c77,1000) dat4(1:12),dat4(13)/2
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1000 format(12b6.6,b5.5)
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call unpack77(c77,0,decoded,unpk77_success) !Unpack to get msgsent
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endif
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return
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end subroutine q65_dec2
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subroutine q65_s1_to_s3(s1,iz,jz,i0,j0,ipk,jpk,LL,mode_q65,sync,s3)
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! Copy from s1 or s1a into s3
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real s1(iz,jz)
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real s3(-64:LL-65,63)
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real sync(85) !sync vector
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i1=i0+ipk-64 + mode_q65
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i2=i1+LL-1
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if(i1.ge.1 .and. i2.le.iz) then
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j=j0+jpk-7
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n=0
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do k=1,85
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j=j+8
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if(sync(k).gt.0.0) then
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cycle
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endif
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n=n+1
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if(j.ge.1 .and. j.le.jz) s3(-64:LL-65,n)=s1(i1:i2,j)
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enddo
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endif
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return
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end subroutine q65_s1_to_s3
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end module q65
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