WSJT-X/map65/libm65/extract.f90

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Fortran
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subroutine extract(s3,nadd,ncount,nhist,decoded,ltext)
use packjt
real s3(64,63)
character decoded*22
integer era(51),dat4(12),indx(64)
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),ne(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