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More progress on SWL mode.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7449 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2017-01-05 02:26:55 +00:00
parent 6d3ca346e0
commit c47403642e
2 changed files with 90 additions and 38 deletions
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14
lib/msk40decodeframe.f90
View File

@ -135,30 +135,32 @@ subroutine msk40decodeframe(c,mycall,hiscall,xsnr,bswl,nhasharray, &
nrxhash=(imsg-nrxrpt)/16
if(nhammd.le.4 .and. cord .lt. 0.65 .and. nrxhash.eq.ihash) then
!write(*,*) 'decodeframe 1',nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
!write(*,*) 'decodeframe 1',nbadsync,nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
nsuccess=1
write(msgreceived,'(a1,a,1x,a,a1,1x,a4)') "<",trim(mycall), &
trim(hiscall),">",rpt(nrxrpt)
return
elseif(bswl .and. nhammd.le.2 .and. cord.lt.0.40 .and. xsnr .gt. -3.0) then
! elseif(bswl .and. nhammd.le.2 .and. cord.lt.0.40 .and. xsnr .gt. -3.0) then
elseif(bswl .and. nhammd.le.4 .and. cord.lt.0.65 ) then
do i=1,nrecent
do j=i+1,nrecent
if( nrxhash .eq. nhasharray(i,j) ) then
nsuccess=2
write(msgreceived,'(a1,a,1x,a,a1,1x,a4)') "<",trim(recent_calls(i)), &
trim(recent_calls(j)),">",rpt(nrxrpt)
!write(*,*) 'decodeframe 2',nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
!write(*,*) 'decodeframe 2',nbadsync,nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
elseif( nrxhash .eq. nhasharray(j,i) ) then
nsuccess=2
write(msgreceived,'(a1,a,1x,a,a1,1x,a4)') "<",trim(recent_calls(j)), &
trim(recent_calls(i)),">",rpt(nrxrpt)
!write(*,*) 'decodeframe 3',nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
!write(*,*) 'decodeframe 3',nbadsync,nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
endif
enddo
enddo
if(nsuccess.eq.0 .and. nhammd.le.2 .and. cord.lt.0.40 .and. xsnr.gt.0.0 ) then
!write(*,*) 'decodeframe 4',bswl,nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma
! if(nsuccess.eq.0 .and. nhammd.le.2 .and. cord.lt.0.40 .and. xsnr.gt. -3.0 ) then
if(nsuccess.eq.0) then
nsuccess=3
!write(*,*) 'decodeframe 4',bswl,nbadsync,nhammd,cord,nrxhash,nrxrpt,ihash,xsnr,sigma,nsuccess
write(msgreceived,'(a1,i4.4,a1,1x,a4)') "<",nrxhash,">",rpt(nrxrpt)
endif
endif

114
lib/mskrtd.f90
View File

@ -10,14 +10,16 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
parameter (NFFT1=8192) !FFT size for making analytic signal
parameter (NPATTERNS=4) !Number of frame averaging patterns to try
parameter (NRECENT=10) !Number of recent calls to remember
parameter (NSHMEM=250) !Number of recent SWL messages to remember
character*3 decsym !"&" for mskspd or "^" for long averages
character*22 msgreceived !Decoded message
character*22 msglast !!! temporary - used for dupechecking
character*22 msglast,msglastswl !Used for dupechecking
character*80 line !Formatted line with UTC dB T Freq Msg
character*12 mycall,hiscall
character*6 mygrid
character*12 recent_calls(NRECENT)
character*22 recent_shmsgs(NSHMEM)
complex cdat(NFFT1) !Analytic signal
complex c(NSPM) !Coherently averaged complex data
@ -28,6 +30,7 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
integer iavpatterns(8,NPATTERNS)
integer npkloc(10)
integer nhasharray(NRECENT,NRECENT)
integer nsnrlast,nsnrlastswl
real d(NFFT1)
real pow(8)
@ -39,7 +42,8 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
logical*1 first
logical*1 trained
logical*1 bshdecode
logical*1 noprint
logical*1 seenb4
logical*1 bflag
data first/.true./
data iavpatterns/ &
@ -48,8 +52,8 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
1,1,1,1,1,0,0,0, &
1,1,1,1,1,1,1,0/
data xmc/2.0,4.5,2.5,3.5/ !Used to set time at center of averaging mask
save first,tsec0,nutc00,pnoise,nsnrlast,msglast,cdat,pcoeffs,trained, &
recent_calls,nhasharray
save first,tsec0,nutc00,pnoise,cdat,pcoeffs,trained,msglast,msglastswl, &
nsnrlast,nsnrlastswl,recent_calls,nhasharray,recent_shmsgs
if(first) then
tsec0=tsec
@ -59,7 +63,14 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
do i=1,nrecent
recent_calls(i)(1:12)=' '
enddo
do i=1,nshmem
recent_shmsgs(i)(1:22)=' '
enddo
trained=.false.
msglast=' '
msglastswl=' '
nsnrlast=-99
nsnrlastswl=-99
first=.false.
endif
@ -68,7 +79,9 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
! Dupe checking setup
if(nutc00.ne.nutc0 .or. tsec.lt.tsec0) then ! reset dupe checker
msglast=' '
msglastswl=' '
nsnrlast=-99
nsnrlastswl=-99
nutc00=nutc0
endif
@ -83,7 +96,7 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
fac=1.0/rms
d(1:NZ)=fac*d(1:NZ)
d(NZ+1:NFFT1)=0.
call analytic(d,NZ,NFFT1,cdat,pcoeffs,brxequal,.true.) !Convert to analytic signal and filter
call analytic(d,NZ,NFFT1,cdat,pcoeffs,brxequal,.true.)
! Calculate average power for each frame and for the entire block.
! If decode is successful, largest power will be taken as signal+noise.
@ -101,13 +114,13 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
! center a 3-frame analysis window and attempts to decode each of the
! 3 frames along with 2- and 3-frame averages.
np=8*NSPM
call msk144spd(cdat,np,ntol,nsuccess,msgreceived,fc,fest,tdec,navg,ct, &
call msk144spd(cdat,np,ntol,ndecodesuccess,msgreceived,fc,fest,tdec,navg,ct, &
softbits,recent_calls,nrecent)
if(nsuccess.eq.0 .and. bshmsg) then
call msk40spd(cdat,np,ntol,mycall(1:6),hiscall(1:6),bswl,nhasharray, &
recent_calls,nrecent,nsuccess,msgreceived,fc,fest,tdec,navg)
if(ndecodesuccess.eq.0 .and. bshmsg) then
call msk40spd(cdat,np,ntol,mycall(1:6),hiscall(1:6),bswl,nhasharray, &
recent_calls,nrecent,ndecodesuccess,msgreceived,fc,fest,tdec,navg)
endif
if( nsuccess .ge. 1 ) then
if( ndecodesuccess .ge. 1 ) then
tdec=tsec+tdec
ipk=0
is=0
@ -126,7 +139,7 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
navg=sum(iavmask)
deltaf=10.0/real(navg) ! search increment for frequency sync
npeaks=2
call msk144sync(cdat(1:8*NSPM),8,ntol,deltaf,iavmask,npeaks,fc, &
call msk144sync(cdat(1:8*NSPM),8,ntol,deltaf,iavmask,npeaks,fc, &
fest,npkloc,nsyncsuccess,xmax,c)
if( nsyncsuccess .eq. 0 ) cycle
@ -173,34 +186,51 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
if(.not. bshdecode) then
call msk144signalquality(ct,snr0,fest,tdec,softbits,msgreceived,hiscall, &
ncorrected,eyeopening,trained,pcoeffs)
ncorrected,eyeopening,trained,pcoeffs)
endif
! Dupe check. Only print if new message, or higher snr.
if(msgreceived.ne.msglast .or. nsnr.gt.nsnrlast .or. tsec.lt.tsec0) then
call update_hasharray(recent_calls,nrecent,nhasharray)
decsym=' & '
if( brxequal .and. (.not. trained) ) decsym=' ^ '
if( brxequal .and. trained ) decsym=' $ '
if( (.not. brxequal) .and. trained ) decsym=' @ '
if( msgreceived(1:1).eq.'<') then
ncorrected=0
eyeopening=0.0
endif
if( nsnr .lt. -8 ) nsnr=-8
if( nsnr .gt. 24 ) nsnr=24
! Dupe check.
bflag=ndecodesuccess.eq.1 .and. &
(msgreceived.ne.msglast .or. nsnr.gt.nsnrlast .or. tsec.lt.tsec0)
if(bflag) then
msglast=msgreceived
nsnrlast=nsnr
if( nsnr .lt. -8 ) nsnr=-8
if( nsnr .gt. 24 ) nsnr=24
if(.not. bshdecode) then
call update_hasharray(recent_calls,nrecent,nhasharray)
call fix_contest_msg(mycall(1:6),mygrid,hiscall(1:6),msgreceived)
endif
decsym=' & '
if( brxequal .and. (.not. trained) ) decsym=' ^ '
if( brxequal .and. trained ) decsym=' $ '
if( (.not. brxequal) .and. trained ) decsym=' @ '
if( msgreceived(1:1).eq.'<') then
ncorrected=0
eyeopening=0.0
endif
noprint = bswl .and. &
((nsuccess.eq.2 .and. nsnr.lt.-3).or.(nsuccess.eq.3 .and. nsnr.lt.-3))
if( .not.noprint ) then
write(line,1020) nutc0,nsnr,tdec,nint(fest),decsym,msgreceived, &
navg,ncorrected,eyeopening,char(0)
1020 format(i6.6,i4,f5.1,i5,a3,a22,i2,i3,f5.1,a1)
endif
write(line,1020) nutc0,nsnr,tdec,nint(fest),decsym,msgreceived, &
navg,ncorrected,eyeopening,char(0)
1020 format(i6.6,i4,f5.1,i5,a3,a22,i2,i3,f5.1,a1)
elseif(bswl .and. ndecodesuccess.ge.2) then
seenb4=.false.
do i=1,nshmem
if( msgreceived .eq. recent_shmsgs(i) ) then
seenb4=.true.
endif
enddo
call update_recent_shmsgs(msgreceived,recent_shmsgs,nshmem)
bflag=seenb4 .and. &
(msgreceived.ne.msglastswl .or. nsnr.gt.nsnrlastswl .or. tsec.lt.tsec0) &
.and. nsnr.gt.-6
if(bflag) then
msglastswl=msgreceived
nsnrlastswl=nsnr
write(line,1020) nutc0,nsnr,tdec,nint(fest),decsym,msgreceived, &
navg,ncorrected,eyeopening,char(0)
endif
endif
999 tsec0=tsec
@ -208,3 +238,23 @@ subroutine mskrtd(id2,nutc0,tsec,ntol,nrxfreq,ndepth,mycall,mygrid,hiscall, &
end subroutine mskrtd
include 'fix_contest_msg.f90'
subroutine update_recent_shmsgs(message,msgs,nsize)
character*22 msgs(nsize)
character*22 message
logical*1 seen
seen=.false.
do i=1,nsize
if( msgs(i) .eq. message ) seen=.true.
enddo
if( .not. seen ) then
do i=nsize,2,-1
msgs(i)=msgs(i-1)
enddo
msgs(1)=message
endif
return
end subroutine update_recent_shmsgs