mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-13 23:51:49 -05:00
509 lines
18 KiB
Fortran
509 lines
18 KiB
Fortran
subroutine map65a(dd,ss,savg,newdat,nutc,fcenter,ntol,idphi,nfa,nfb, &
|
|
mousedf,mousefqso,nagain,ndecdone,nfshift,ndphi,max_drift, &
|
|
nfcal,nkeep,mcall3b,nsum,nsave,nxant,mycall,mygrid, &
|
|
neme,ndepth,nstandalone,hiscall,hisgrid,nhsym,nfsample,nxpol,nmode)
|
|
|
|
! Processes timf2 data from Linrad to find and decode JT65 signals.
|
|
|
|
use wideband_sync
|
|
use timer_module, only: timer
|
|
|
|
parameter (MAXMSG=1000) !Size of decoded message list
|
|
parameter (NSMAX=60*96000)
|
|
real dd(4,NSMAX)
|
|
real*4 ss(4,322,NFFT),savg(4,NFFT)
|
|
real tavg(-50:50) !Temp for finding local base level
|
|
real base(4) !Local basel level at 4 pol'ns
|
|
real sig(MAXMSG,30) !Parameters of detected signals
|
|
real a(5)
|
|
real*8 fcenter
|
|
character*22 msg(MAXMSG)
|
|
character*3 shmsg0(4)
|
|
character mycall*12,hiscall*12,mygrid*6,hisgrid*6,cp*1,cm*1
|
|
integer indx(MAXMSG),nsiz(MAXMSG)
|
|
logical done(MAXMSG)
|
|
logical xpol,bq65,q65b_called
|
|
logical candec(MAX_CANDIDATES)
|
|
character decoded*22,blank*22,cmode*2
|
|
real short(3,NFFT) !SNR dt ipol for potential shorthands
|
|
real qphi(12)
|
|
type(candidate) :: cand(MAX_CANDIDATES)
|
|
|
|
common/c3com/ mcall3a
|
|
common/testcom/ifreq
|
|
|
|
data blank/' '/,cm/'#'/
|
|
data shmsg0/'ATT','RO ','RRR','73 '/
|
|
data nfile/0/,nutc0/-999/,nid/0/,ip000/1/,ip001/1/,mousefqso0/-999/
|
|
save
|
|
|
|
nkhz_center=nint(1000.0*(fcenter-int(fcenter)))
|
|
mfa=nfa-nkhz_center+48
|
|
mfb=nfb-nkhz_center+48
|
|
mode65=mod(nmode,10)
|
|
if(mode65.eq.3) mode65=4
|
|
mode_q65=nmode/10
|
|
xpol=(nxpol.ne.0)
|
|
|
|
nts_jt65=2**(mode65-1) !JT65 tone separation factor
|
|
nts_q65=2**(mode_q65) !Q65 tone separation factor
|
|
if(nagain.eq.0) then
|
|
call timer('get_cand',0)
|
|
call get_candidates(ss,savg,xpol,mfa,mfb,nts_jt65,nts_q65,cand,ncand)
|
|
call timer('get_cand',1)
|
|
candec=.false.
|
|
endif
|
|
!###
|
|
! do k=1,ncand
|
|
! freq=cand(k)%f+nkhz_center-48.0-1.27046
|
|
! write(70,3010) nutc,k,cand(k)%snr,cand(k)%f,freq,cand(k)%xdt, &
|
|
! cand(k)%ipol,cand(k)%iflip
|
|
!3010 format(i4.4,i5,f10.1,3f10.3,2i3)
|
|
! enddo
|
|
!###
|
|
|
|
nwrite_q65=0
|
|
bq65=mode_q65.gt.0
|
|
|
|
mcall3a=mcall3b
|
|
mousefqso0=mousefqso
|
|
if(.not.xpol) ndphi=0
|
|
nsum=0
|
|
|
|
!### Should use AppDir! ###
|
|
open(23,file='CALL3.TXT',status='unknown')
|
|
|
|
df=96000.0/NFFT !df = 96000/NFFT = 2.930 Hz
|
|
if(nfsample.eq.95238) df=95238.1/NFFT
|
|
ftol=0.010 !Frequency tolerance (kHz)
|
|
dphi=idphi/57.2957795
|
|
foffset=0.001*(1270 + nfcal) !Offset from sync tone, plus CAL
|
|
fqso=mousefqso + foffset - 0.5*(nfa+nfb) + nfshift !fqso at baseband (khz)
|
|
iloop=0
|
|
|
|
2 if(ndphi.eq.1) dphi=30*iloop/57.2957795
|
|
|
|
if(nutc.ne.nutc0) nfile=nfile+1
|
|
nutc0=nutc
|
|
|
|
do nqd=1,0,-1
|
|
if(nqd.eq.1) then !Quick decode, at fQSO
|
|
fa=1000.0*(fqso+0.001*mousedf) - ntol
|
|
fb=1000.0*(fqso+0.001*mousedf) + ntol + 4*53.8330078
|
|
else !Wideband decode at all freqs
|
|
fa=-1000*0.5*(nfb-nfa) + 1000*nfshift
|
|
fb= 1000*0.5*(nfb-nfa) + 1000*nfshift
|
|
endif
|
|
ia=nint(fa/df) + 16385
|
|
ib=nint(fb/df) + 16385
|
|
ia=max(51,ia)
|
|
ib=min(32768-51,ib)
|
|
|
|
km=0
|
|
nkm=1
|
|
nz=n/8
|
|
freq0=-999.
|
|
sync10=-999.
|
|
fshort0=-999.
|
|
syncshort0=-999.
|
|
ntry=0
|
|
short=0. !Zero the whole short array
|
|
jpz=1
|
|
if(xpol) jpz=4
|
|
|
|
do i=ia,ib !Search over freq range
|
|
freq=0.001*(i-16385)*df
|
|
! Find the local base level for each polarization; update every 10 bins.
|
|
if(mod(i-ia,10).eq.0) then
|
|
do jp=1,jpz
|
|
do ii=-50,50
|
|
iii=i+ii
|
|
if(iii.ge.1 .and. iii.le.32768) then
|
|
tavg(ii)=savg(jp,iii)
|
|
else
|
|
write(13,*) 'Error in iii:',iii,ia,ib,fa,fb
|
|
flush(13)
|
|
go to 900
|
|
endif
|
|
enddo
|
|
call pctile(tavg,101,50,base(jp))
|
|
enddo
|
|
endif
|
|
|
|
! Find max signal at this frequency
|
|
smax=0.
|
|
do jp=1,jpz
|
|
if(savg(jp,i)/base(jp).gt.smax) then
|
|
smax=savg(jp,i)/base(jp)
|
|
jpmax=jp
|
|
endif
|
|
enddo
|
|
|
|
if(smax.gt.1.1 .or. ia.eq.ib) then
|
|
! Look for JT65 sync patterns and shorthand square-wave patterns.
|
|
call timer('ccf65 ',0)
|
|
! ssmax=smax
|
|
ssmax=1.e30
|
|
call ccf65(ss(1,1,i),nhsym,ssmax,sync1,ipol,jpz,dt, &
|
|
flipk,syncshort,snr2,ipol2,dt2)
|
|
if(dt.lt.-2.6 .or. dt.gt.2.5) sync1=-99.0 !###
|
|
call timer('ccf65 ',1)
|
|
if(mode65.eq.0) syncshort=-99.0 !If "No JT65", don't waste time
|
|
|
|
! ########################### Search for Shorthand Messages #################
|
|
! Is there a shorthand tone above threshold?
|
|
thresh0=1.0
|
|
! Use lower thresh0 at fQSO
|
|
if(nqd.eq.1 .and. ntol.le.100) thresh0=0.
|
|
if(syncshort.gt.thresh0) then
|
|
! ### Do shorthand AFC here (or maybe after finding a pair?) ###
|
|
short(1,i)=syncshort
|
|
short(2,i)=dt2
|
|
short(3,i)=ipol2
|
|
|
|
! Check to see if lower tone of shorthand pair was found.
|
|
do j=2,4
|
|
i0=i-nint(j*mode65*10.0*(11025.0/4096.0)/df)
|
|
! Should this be i0 +/- 1, or just i0?
|
|
! Should we also insist that difference in DT be either 1.5 or -1.5 s?
|
|
if(short(1,i0).gt.thresh0) then
|
|
fshort=0.001*(i0-16385)*df
|
|
noffset=0
|
|
if(nqd.eq.1) noffset=nint(1000.0*(fshort-fqso)-mousedf)
|
|
if(abs(noffset).le.ntol) then
|
|
! Keep only the best candidate within ftol.
|
|
!### NB: sync2 was not defined here!
|
|
! sync2=syncshort !### try this ???
|
|
if(fshort-fshort0.le.ftol .and. &
|
|
syncshort.gt.syncshort0 .and. nkm.eq.2) km=km-1
|
|
if(fshort-fshort0.gt.ftol .or. &
|
|
syncshort.gt.syncshort0) then
|
|
if(km.lt.MAXMSG) km=km+1
|
|
sig(km,1)=nfile
|
|
sig(km,2)=nutc
|
|
sig(km,3)=fshort + 0.5*(nfa+nfb)
|
|
sig(km,4)=syncshort
|
|
sig(km,5)=dt2
|
|
sig(km,6)=45*(ipol2-1)/57.2957795
|
|
sig(km,7)=0
|
|
sig(km,8)=snr2
|
|
sig(km,9)=0
|
|
sig(km,10)=0
|
|
! sig(km,11)=rms0
|
|
sig(km,12)=savg(ipol2,i)
|
|
sig(km,13)=0
|
|
sig(km,14)=0
|
|
sig(km,15)=0
|
|
sig(km,16)=0
|
|
! sig(km,17)=0
|
|
sig(km,18)=0
|
|
msg(km)=shmsg0(j)
|
|
fshort0=fshort
|
|
syncshort0=syncshort
|
|
nkm=2
|
|
endif
|
|
endif
|
|
endif
|
|
enddo
|
|
endif
|
|
|
|
! ########################### Search for Normal Messages ###########
|
|
! Is sync1 above threshold?
|
|
thresh1=1.0
|
|
! Use lower thresh1 at fQSO
|
|
if(nqd.eq.1 .and. ntol.le.100) thresh1=0.
|
|
noffset=0
|
|
if(nqd.ge.1) noffset=nint(1000.0*(freq-fqso)-mousedf)
|
|
if(newdat.eq.1 .and. sync1.gt.-99.0) then
|
|
sync1=thresh1+1.0
|
|
noffset=0
|
|
endif
|
|
if(sync1.gt.thresh1 .and. abs(noffset).le.ntol) then
|
|
! Keep only the best candidate within ftol.
|
|
! (Am I deleting any good decodes by doing this?)
|
|
if(freq-freq0.le.ftol .and. sync1.gt.sync10 .and. &
|
|
nkm.eq.1) km=km-1
|
|
if(freq-freq0.gt.ftol .or. sync1.gt.sync10) then
|
|
nflip=nint(flipk)
|
|
f00=(i-1)*df !Freq of detected sync tone (0-96000 Hz)
|
|
ntry=ntry+1
|
|
if((nqd.eq.1 .and. ntry.ge.40) .or. &
|
|
(nqd.eq.0 .and. ntry.ge.400)) then
|
|
! Too many calls to decode1a!
|
|
write(*,*) '! Signal too strong, or suspect data? Decoding aborted.'
|
|
write(13,*) 'Signal too strong, or suspect data? Decoding aborted.'
|
|
call flush(13)
|
|
go to 900
|
|
endif
|
|
|
|
call timer('decode1a',0)
|
|
ifreq=i
|
|
ikhz=nint(freq+0.5*(nfa+nfb)-foffset)-nfshift
|
|
idf=nint(1000.0*(freq+0.5*(nfa+nfb)-foffset-(ikHz+nfshift)))
|
|
call decode1a(dd,newdat,f00,nflip,mode65,nfsample, &
|
|
xpol,mycall,hiscall,hisgrid,neme,ndepth,nqd,dphi, &
|
|
ndphi,nutc,ikHz,idf,ipol,ntol,sync2, &
|
|
a,dt,pol,nkv,nhist,nsum,nsave,qual,decoded)
|
|
call timer('decode1a',1)
|
|
|
|
! The case sync1=2.0 is just to make sure decode1a is called and bigfft done.
|
|
if(mode65.ne.0 .and. sync1.ne.2.000000) then
|
|
if(km.lt.MAXMSG) km=km+1
|
|
sig(km,1)=nfile
|
|
sig(km,2)=nutc
|
|
sig(km,3)=freq + 0.5*(nfa+nfb)
|
|
sig(km,4)=sync1
|
|
sig(km,5)=dt
|
|
sig(km,6)=pol
|
|
sig(km,7)=flipk
|
|
sig(km,8)=sync2
|
|
sig(km,9)=nkv
|
|
sig(km,10)=qual
|
|
! sig(km,11)=idphi
|
|
sig(km,12)=savg(ipol,i)
|
|
sig(km,13)=a(1)
|
|
sig(km,14)=a(2)
|
|
sig(km,15)=a(3)
|
|
sig(km,16)=a(4)
|
|
! sig(km,17)=a(5)
|
|
sig(km,18)=nhist
|
|
msg(km)=decoded
|
|
freq0=freq
|
|
sync10=sync1
|
|
nkm=1
|
|
endif
|
|
endif
|
|
endif
|
|
endif
|
|
enddo !i=ia,ib
|
|
|
|
if(nqd.eq.1) then
|
|
nwrite=0
|
|
do k=1,km
|
|
decoded=msg(k)
|
|
if(decoded.ne.' ') then
|
|
nutc=sig(k,2)
|
|
freq=sig(k,3)
|
|
sync1=sig(k,4)
|
|
dt=sig(k,5)
|
|
npol=nint(57.2957795*sig(k,6))
|
|
flip=sig(k,7)
|
|
sync2=sig(k,8)
|
|
nkv=sig(k,9)
|
|
nqual=sig(k,10)
|
|
! idphi=nint(sig(k,11))
|
|
if(flip.lt.0.0) then
|
|
do i=22,1,-1
|
|
if(decoded(i:i).ne.' ') go to 8
|
|
enddo
|
|
stop 'Error in message format'
|
|
8 if(i.le.18) decoded(i+2:i+4)='OOO'
|
|
endif
|
|
nkHz=nint(freq-foffset)-nfshift
|
|
mhz=fcenter ! ... +fadd ???
|
|
f0=mhz+0.001*nkHz
|
|
ndf=nint(1000.0*(freq-foffset-(nkHz+nfshift)))
|
|
nsync1=sync1
|
|
|
|
s2db=10.0*log10(sync2) - 40 !### empirical ###
|
|
nsync2=nint(s2db)
|
|
if(decoded(1:4).eq.'RO ' .or. decoded(1:4).eq.'RRR ' .or. &
|
|
decoded(1:4).eq.'73 ') then
|
|
nsync2=nint(1.33*s2db + 2.0)
|
|
endif
|
|
|
|
nwrite=nwrite+1
|
|
if(nxant.ne.0) then
|
|
npol=npol-45
|
|
if(npol.lt.0) npol=npol+180
|
|
endif
|
|
|
|
call txpol(xpol,decoded,mygrid,npol,nxant,ntxpol,cp)
|
|
|
|
if(ndphi.eq.0) then
|
|
write(*,1010) nkHz,ndf,npol,nutc,dt,nsync2, &
|
|
cm,decoded,nkv,nqual,ntxpol,cp
|
|
1010 format('!',i3,i5,i4,i6.4,f5.1,i5,1x,a1,1x,a22,i2,i5,i5,1x,a1)
|
|
else
|
|
if(iloop.ge.1) qphi(iloop)=sig(k,10)
|
|
write(*,1010) nkHz,ndf,npol,nutc,dt,nsync2, &
|
|
cm,decoded,nkv,nqual,30*iloop
|
|
write(27,1011) 30*iloop,nkHz,ndf,npol,nutc, &
|
|
dt,sync2,nkv,nqual,cm,decoded
|
|
1011 format(i3,i4,i5,i4,i6.4,1x,f5.1,f7.1,i3,i5,a1,1x,a22)
|
|
endif
|
|
endif
|
|
enddo ! k=1,km
|
|
|
|
if(bq65) then
|
|
q65b_called=.false.
|
|
do icand=1,ncand
|
|
if(cand(icand)%iflip.ne.0) cycle !Keep only Q65 candidates
|
|
freq=cand(icand)%f+nkhz_center-48.0-1.27046
|
|
nhzdiff=nint(1000.0*(freq-mousefqso)-mousedf) - nfcal
|
|
! Now looking for "quick decode" (nqd=1) candidates at cursor freq +/- ntol.
|
|
if(nqd.eq.1 .and. abs(nhzdiff).gt.ntol) cycle
|
|
ikhz=mousefqso
|
|
q65b_called=.true.
|
|
f0=cand(icand)%f
|
|
call timer('q65b ',0)
|
|
call q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf, &
|
|
ntol,xpol,mycall,mygrid, hiscall,hisgrid,mode_q65,f0,fqso, &
|
|
newdat,nagain,max_drift,idec)
|
|
call timer('q65b ',1)
|
|
if(idec.ge.0) candec(icand)=.true.
|
|
enddo
|
|
if(.not.q65b_called) then
|
|
freq=mousefqso + 0.001*mousedf
|
|
ikhz=mousefqso
|
|
f0=freq - (nkhz_center-48.0-1.27046) !### ??? ###
|
|
call timer('q65b ',0)
|
|
call q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf, &
|
|
ntol,xpol,mycall,mygrid,hiscall,hisgrid,mode_q65,f0,fqso, &
|
|
newdat,nagain,max_drift,idec)
|
|
call timer('q65b ',1)
|
|
endif
|
|
endif
|
|
|
|
if(nwrite.eq.0 .and. nwrite_q65.eq.0) then
|
|
write(*,1012) mousefqso,nutc
|
|
1012 format('!',i3,9x,i6.4,' ')
|
|
endif
|
|
endif !nqd.eq.1
|
|
|
|
if(ndphi.eq.1 .and.iloop.lt.12) then
|
|
iloop=iloop+1
|
|
go to 2
|
|
endif
|
|
|
|
if(ndphi.eq.1 .and.iloop.eq.12) call getdphi(qphi)
|
|
if(nqd.eq.1) then
|
|
write(*,1013) nsum,nsave
|
|
1013 format('<QuickDecodeDone>',2i4)
|
|
flush(6)
|
|
endif
|
|
if(nqd.eq.1 .and. nagain.eq.1) go to 900
|
|
|
|
if(nqd.eq.0 .and. bq65) then
|
|
! Do the wideband Q65 decode
|
|
do icand=1,ncand
|
|
if(cand(icand)%iflip.ne.0) cycle !Do only Q65 candidates here
|
|
if(candec(icand)) cycle !Skip if already decoded
|
|
freq=cand(icand)%f+nkhz_center-48.0-1.27046
|
|
! If here at nqd=1, do only candidates at mousefqso +/- ntol
|
|
if(nqd.eq.1 .and. abs(freq-mousefqso).gt.0.001*ntol) cycle
|
|
ikhz=nint(freq)
|
|
f0=cand(icand)%f
|
|
call timer('q65b ',0)
|
|
call q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol, &
|
|
xpol,mycall,mygrid,hiscall,hisgrid,mode_q65,f0,fqso,newdat, &
|
|
nagain,max_drift,idec)
|
|
call timer('q65b ',1)
|
|
if(idec.ge.0) candec(icand)=.true.
|
|
enddo ! icand
|
|
endif
|
|
|
|
enddo ! nqd
|
|
|
|
! Trim the list and produce a sorted index and sizes of groups.
|
|
! (Should trimlist remove all but best SNR for given UTC and message content?)
|
|
call trimlist(sig,km,ftol,indx,nsiz,nz)
|
|
|
|
do i=1,km
|
|
done(i)=.false.
|
|
enddo
|
|
j=0
|
|
ilatest=-1
|
|
do n=1,nz
|
|
ifile0=0
|
|
do m=1,nsiz(n)
|
|
i=indx(j+m)
|
|
ifile=sig(i,1)
|
|
if(ifile.gt.ifile0 .and.msg(i).ne.blank) then
|
|
ilatest=i
|
|
ifile0=ifile
|
|
endif
|
|
enddo
|
|
i=ilatest
|
|
|
|
if(i.ge.1) then
|
|
if(.not.done(i)) then
|
|
done(i)=.true.
|
|
nutc=sig(i,2)
|
|
freq=sig(i,3)
|
|
sync1=sig(i,4)
|
|
dt=sig(i,5)
|
|
npol=nint(57.2957795*sig(i,6))
|
|
flip=sig(i,7)
|
|
sync2=sig(i,8)
|
|
nkv=sig(i,9)
|
|
nqual=min(sig(i,10),10.0)
|
|
! rms0=sig(i,11)
|
|
do k=1,5
|
|
a(k)=sig(i,12+k)
|
|
enddo
|
|
nhist=sig(i,18)
|
|
decoded=msg(i)
|
|
|
|
if(flip.lt.0.0) then
|
|
do i=22,1,-1
|
|
if(decoded(i:i).ne.' ') go to 10
|
|
enddo
|
|
stop 'Error in message format'
|
|
10 if(i.le.18) decoded(i+2:i+4)='OOO'
|
|
endif
|
|
mhz=fcenter !... +fadd ???
|
|
nkHz=nint(freq-foffset)-nfshift
|
|
f0=mhz+0.001*nkHz
|
|
ndf=nint(1000.0*(freq-foffset-(nkHz+nfshift)))
|
|
ndf0=nint(a(1))
|
|
ndf1=nint(a(2))
|
|
ndf2=nint(a(3))
|
|
nsync1=sync1
|
|
|
|
s2db=10.0*log10(sync2) - 40 !### empirical ###
|
|
nsync2=nint(s2db)
|
|
if(decoded(1:4).eq.'RO ' .or. decoded(1:4).eq.'RRR ' .or. &
|
|
decoded(1:4).eq.'73 ') then
|
|
nsync2=nint(1.33*s2db + 2.0)
|
|
endif
|
|
|
|
if(nxant.ne.0) then
|
|
npol=npol-45
|
|
if(npol.lt.0) npol=npol+180
|
|
endif
|
|
|
|
call txpol(xpol,decoded,mygrid,npol,nxant,ntxpol,cp)
|
|
|
|
cmode='#A'
|
|
if(mode65.eq.2) cmode='#B'
|
|
if(mode65.eq.4) cmode='#C'
|
|
write(26,1014) f0,ndf,ndf0,ndf1,ndf2,dt,npol,nsync1, &
|
|
nsync2,nutc,decoded,cp,cmode
|
|
1014 format(f8.3,i5,3i3,f5.1,i4,i3,i4,i5.4,4x,a22,2x,a1,3x,a2)
|
|
write(21,1016) f0,ndf,dt,npol,nsync2,nutc,decoded,cp, &
|
|
cmode(1:1),cmode(2:2)
|
|
1016 format(f8.3,i5,f5.1,2i4,i5.4,2x,a22,2x,a1,3x,a1,1x,a1)
|
|
|
|
! write(21,1014) f0,ndf,ndf0,ndf1,ndf2,dt,npol,nsync1, &
|
|
! nutc,decoded,cp,cmode
|
|
|
|
endif
|
|
endif
|
|
j=j+nsiz(n)
|
|
enddo !i=1,km
|
|
|
|
write(26,1015) nutc
|
|
1015 format(37x,i6.4,' ')
|
|
call flush(21)
|
|
call flush(26)
|
|
call display(nkeep,ftol)
|
|
ndecdone=2
|
|
|
|
900 close(23)
|
|
ndphi=0
|
|
mcall3b=mcall3a
|
|
|
|
return
|
|
end subroutine map65a
|