WSJT-X/lib/wsjt24.f90
Joe Taylor e9e319da1e Message averaging and DS now fully integrated in wsjt24d.
Code cleanup and optimization still to be done!


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2970 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-01-23 19:54:54 +00:00

182 lines
5.7 KiB
Fortran

subroutine wsjt24(dat,npts,cfile6,NClearAve,MinSigdB, &
DFTolerance,NFreeze,mode,mode4,Nseg,MouseDF,NAgain, &
idf,lumsg,lcum,nspecial,ndf,NSyncOK,ccfblue,ccfred,ndiag)
! Orchestrates the process of decoding JT4 messages, using data that
! have been 2x downsampled.
! No message averaging and no deep search, at present.
parameter (MAXAVE=120)
real dat(npts) !Raw data
real*4 ccfblue(-5:540) !CCF in time
real*4 ccfred(-224:224) !CCF in frequency
integer DFTolerance
logical first
logical lcum
character decoded*22,cfile6*6,special*5,cooo*3
character*22 avemsg1,avemsg2,deepmsg
character*77 line,ave1,ave2
character*1 csync,c1
character*12 mycall
character*12 hiscall
character*6 hisgrid
character submode*1
real*4 ccfbluesum(-5:540),ccfredsum(-224:224)
common/ave/ppsave(207,7,MAXAVE),nflag(MAXAVE),nsave,iseg(MAXAVE)
data first/.true./,ns10/0/,ns20/0/
save
if(first) then
nsave=0
first=.false.
ave1=' '
ave2=' '
ccfblue=0.
ccfred=0.
if(nspecial.eq.999) go to 900 !Silence compiler warning
endif
ndepth=3 !###
naggressive=0
if(ndepth.ge.2) naggressive=1
nq1=3
nq2=6
if(naggressive.eq.1) nq1=1
if(NClearAve.ne.0) then
nsave=0 !Clear the averaging accumulators
ns10=0
ns20=0
ave1=' '
ave2=' '
endif
if(MinSigdB.eq.99 .or. MinSigdB.eq.-99) then
ns10=0 !For Include/Exclude ?
ns20=0
endif
! Attempt to synchronize: look for sync pattern, get DF and DT.
call sync24(dat,npts,DFTolerance,NFreeze,MouseDF,mode, &
mode4,dtx,dfx,snrx,snrsync,ccfblue,ccfred,flip,width)
csync=' '
decoded=' '
deepmsg=' '
special=' '
cooo=' '
ncount=-1 !Flag for RS decode of current record
ncount1=-1 !Flag for RS Decode of ave1
ncount2=-1 !Flag for RS Decode of ave2
NSyncOK=0
nqual1=0
nqual2=0
if(nsave.lt.MAXAVE .and. (NAgain.eq.0 .or. NClearAve.eq.1)) nsave=nsave+1
if(nsave.le.0) go to 900 !Prevent bounds error
nflag(nsave)=0 !Clear the "good sync" flag
iseg(nsave)=Nseg !Set the RX segment to 1 or 2
nsync=nint(snrsync-3.0)
nsnr=nint(snrx)
if(nsnr.lt.-30 .or. nsync.lt.0) nsync=0
nsnrlim=-33
if(nsync.lt.MinSigdB .or. nsnr.lt.nsnrlim) go to 200
! If we get here, we have achieved sync!
NSyncOK=1
nflag(nsave)=1 !Mark this RX file as good
csync='*'
if(flip.lt.0.0) then
csync='#'
cooo='O ?'
endif
call decode24(dat,npts,dtx,dfx,flip,mode,mode4,decoded, &
ncount,deepmsg,qual,submode)
200 kvqual=0
if(ncount.ge.0) kvqual=1
nqual=qual
if(ndiag.eq.0 .and. nqual.gt.10) nqual=10
if(nqual.ge.nq1 .and.kvqual.eq.0) decoded=deepmsg
ndf=nint(dfx)
if(flip.lt.0.0 .and. (kvqual.eq.1 .or. nqual.ge.nq2)) cooo='OOO'
if(kvqual.eq.0.and.nqual.ge.nq1.and.nqual.lt.nq2) cooo(2:3)=' ?'
if(decoded.eq.' ') cooo=' '
do i=1,22
c1=decoded(i:i)
if(c1.ge.'a' .and. c1.le.'z') decoded(i:i)=char(ichar(c1)-32)
enddo
jdf=ndf+idf
! call cs_lock('wsjt24')
write(line,1010) cfile6,nsync,nsnr,dtx-1.0,jdf,nint(width), &
csync,special,decoded(1:19),cooo,kvqual,nqual,submode
1010 format(a6,i3,i5,f5.1,i5,i3,1x,a1,1x,a5,a19,1x,a3,i3,i5,1x,a1)
! Blank all end-of-line stuff if no decode
if(line(31:40).eq.' ') line=line(:30)
if(lcum) write(21,1011) line
! Write decoded msg unless this is an "Exclude" request:
if(MinSigdB.lt.99) write(*,1011) line
1011 format(a77)
if(nsave.ge.1) call avemsg4(1,mode4,ndepth, &
avemsg1,nused1,nq1,nq2,neme,mycall,hiscall,hisgrid,qual1, &
ns1,ncount1)
if(nsave.ge.1) call avemsg4(2,mode4,ndepth, &
avemsg2,nused2,nq1,nq2,neme,mycall,hiscall,hisgrid,qual2, &
ns2,ncount2)
nqual1=qual1
nqual2=qual2
if(ndiag.eq.0 .and. nqual1.gt.10) nqual1=10
if(ndiag.eq.0 .and. nqual2.gt.10) nqual2=10
nc1=0
nc2=0
if(ncount1.ge.0) nc1=1
if(ncount2.ge.0) nc2=1
! Write the average line
if(ns1.ge.1) then
if(ns1.lt.10) write(ave1,1021) cfile6,1,nused1,ns1,avemsg1,nc1,nqual1
1021 format(a6,i3,i4,'/',i1,20x,a19,i7,i5)
if(ns1.ge.10 .and. nsave.le.99) write(ave1,1022) cfile6, &
1,nused1,ns1,avemsg1,nc1,nqual1
1022 format(a6,i3,i4,'/',i2,19x,a19,i7,i5)
if(ns1.ge.100) write(ave1,1023) cfile6,1,nused1,ns1, &
avemsg1,nc1,nqual1
1023 format(a6,i3,i4,'/',i3,18x,a19,i7,i5)
if(lcum .and. (avemsg1.ne.' ')) &
write(21,1011) ave1
ns10=ns1
endif
! If Monitor segment #2 is available, write that line also
if(ns2.ge.1) then
if(ns2.lt.10) write(ave2,1021) cfile6,2,nused2,ns2,avemsg2,nc2,nqual2
if(ns2.ge.10 .and. nsave.le.99) write(ave2,1022) cfile6, &
2,nused2,ns2,avemsg2,nc2,nqual2
if(ns2.ge.100) write(ave2,1023) cfile6,2,nused2,ns2,avemsg2,nc2,nqual2
if(lcum .and. (avemsg2.ne.' ')) &
write(21,1011) ave2
ns20=ns2
endif
if(ave1(31:40).eq.' ') ave1=ave1(:30)
if(ave2(31:40).eq.' ') ave2=ave2(:30)
write(12,1011) ave1
write(12,1011) ave2
call flush(12)
! call cs_unlock
900 continue
ccfbluesum=ccfbluesum + ccfblue
ccfredsum=ccfredsum + ccfred
return
end subroutine wsjt24