subroutine extract(s3,nadd,ncount,nhist,decoded,ltext) use packjt real s3(64,63) character decoded*22 integer dat4(12) integer mrsym(63),mr2sym(63),mrprob(63),mr2prob(63) logical first,ltext integer correct(63),itmp(63) integer param(0:8) integer h0(0:11),d0(0:11) real r0(0:11) common/test001/s3a(64,63),mrs(63),mrs2(63) !### TEST ONLY ### ! 0 1 2 3 4 5 6 7 8 9 10 11 data h0/41,42,43,43,44,45,46,47,48,48,49,49/ data d0/71,72,73,74,76,77,78,80,81,82,83,83/ ! 0 1 2 3 4 5 6 7 8 9 10 11 data r0/0.70,0.72,0.74,0.76,0.78,0.80,0.82,0.84,0.86,0.88,0.90,0.90/ data first/.true./,nsec1/0/ save nfail=0 call pctile(s3,4032,50,base) ! ### or, use ave from demod64a s3=s3/base s3a=s3 1 call demod64a(s3,nadd,mrsym,mrprob,mr2sym,mr2prob,ntest,nlow) ! if(ntest.lt.50 .or. nlow.gt.20) then ! ncount=-999 !Flag bad data ! go to 900 ! endif call chkhist(mrsym,nhist,ipk) if(nhist.ge.20) then nfail=nfail+1 call pctile(s3,4032,50,base) ! ### or, use ave from demod64a s3(ipk,1:63)=base if(nfail.gt.30) then decoded=' ' ncount=-1 go to 900 endif go to 1 endif mrs=mrsym mrs2=mr2sym call graycode(mrsym,63,-1) call interleave63(mrsym,-1) call interleave63(mrprob,-1) call graycode(mr2sym,63,-1) call interleave63(mr2sym,-1) call interleave63(mr2prob,-1) ntrials=10000 naggressive=10 ntry=0 param=0 call timer('ftrsd ',0) call ftrsd2(mrsym,mrprob,mr2sym,mr2prob,ntrials,correct,param,ntry) call timer('ftrsd ',1) ncandidates=param(0) nhard=param(1) nsoft=param(2) nerased=param(3) rtt=0.001*param(4) ntotal=param(5) qual=0.001*param(7) nd0=81 r00=0.87 if(naggressive.eq.10) then nd0=83 r00=0.90 endif if(ntotal.le.nd0 .and. rtt.le.r00) nft=1 n=naggressive if(nhard.gt.50) nft=0 if(nhard.gt.h0(n)) nft=0 if(ntotal.gt.d0(n)) nft=0 if(rtt.gt.r0(n)) nft=0 ncount=-1 decoded=' ' ltext=.false. if(nft.gt.0) then ! Turn the corrected symbol array into channel symbols for subtraction; ! pass it back to jt65a via common block "chansyms65". do i=1,12 dat4(i)=correct(13-i) enddo do i=1,63 itmp(i)=correct(64-i) enddo correct(1:63)=itmp(1:63) call interleave63(correct,63,1) call graycode65(correct,63,1) call unpackmsg(dat4,decoded) !Unpack the user message ncount=0 if(iand(dat4(10),8).ne.0) ltext=.true. endif 900 continue if(nft.eq.1 .and. nhard.lt.0) decoded=' ' ! write(81,3001) naggressive,ncandidates,nhard,ntotal,rtt,qual,decoded !3001 format(i2,i6,i3,i4,2f8.2,2x,a22) return end subroutine extract subroutine getpp(workdat,p) integer workdat(63) integer a(63) common/test001/s3a(64,63),mrs(63),mrs2(63) a(1:63)=workdat(63:1:-1) call interleave63(a,1) call graycode(a,63,1,a) psum=0. do j=1,63 i=a(j)+1 x=s3a(i,j) s3a(i,j)=0. psum=psum + x s3a(i,j)=x enddo p=psum/63.0 return end subroutine getpp