mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-09 02:26:06 -05:00
9113a5b772
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@7515 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
178 lines
4.8 KiB
Fortran
178 lines
4.8 KiB
Fortran
subroutine qra64c(cx,cy,nutc,nqd,ikhz,nfqso,ntol,xpol,mycall_12, &
|
|
hiscall_12,hisgrid_6,nwrite_qra64)
|
|
|
|
use packjt
|
|
parameter (NFFT2=336000) !56*6000 (downsampled by 1/16)
|
|
parameter (NMAX=60*12000,LN=1152*63)
|
|
|
|
! Required input data:
|
|
! nutc,cx,cy,nf1,nf2,nfqso,ntol,mode64,minsync,ndepth,emedelay,
|
|
! mycall_12,hiscall_12,hisgrid_6
|
|
|
|
character decoded*22
|
|
character*12 mycall_12,hiscall_12
|
|
character*6 mycall,hiscall,hisgrid_6
|
|
character*4 hisgrid
|
|
character*1 cp,cmode
|
|
logical xpol,ltext
|
|
complex cx(0:NFFT2-1),cy(0:NFFT2-1)
|
|
complex c00(0:720000) !Complex spectrum of dd()
|
|
complex c0(0:720000) !Complex data for dd()
|
|
real a(3)
|
|
real s3(LN) !Symbol spectra
|
|
real s3a(LN) !Symbol spectra
|
|
integer dat4(12) !Decoded message (as 12 integers)
|
|
integer dat4x(12)
|
|
integer nap(0:11)
|
|
data nap/0,2,3,2,3,4,2,3,6,4,6,6/,cmode/'$'/
|
|
data nc1z/-1/,nc2z/-1/,ng2z/-1/,maxaptypez/-1/
|
|
save
|
|
|
|
! For now:
|
|
nf1=-3000
|
|
nf2=3000
|
|
mode64=1
|
|
minsync=-1
|
|
ndepth=3
|
|
emedelay=2.5
|
|
|
|
irc=-1
|
|
nwrite_qra64=0
|
|
decoded=' '
|
|
nft=99
|
|
mycall=mycall_12(1:6)
|
|
hiscall=hiscall_12(1:6)
|
|
hisgrid=hisgrid_6(1:4)
|
|
call packcall(mycall,nc1,ltext)
|
|
call packcall(hiscall,nc2,ltext)
|
|
call packgrid(hisgrid,ng2,ltext)
|
|
nSubmode=0
|
|
if(mode64.eq.2) nSubmode=1
|
|
if(mode64.eq.4) nSubmode=2
|
|
if(mode64.eq.8) nSubmode=3
|
|
if(mode64.eq.16) nSubmode=4
|
|
b90=1.0
|
|
nFadingModel=1
|
|
maxaptype=4
|
|
if(iand(ndepth,64).ne.0) maxaptype=5
|
|
if(nc1.ne.nc1z .or. nc2.ne.nc2z .or. ng2.ne.ng2z .or. &
|
|
maxaptype.ne.maxaptypez) then
|
|
do naptype=0,maxaptype
|
|
if(naptype.eq.2 .and. maxaptype.eq.4) cycle
|
|
call qra64_dec(s3,nc1,nc2,ng2,naptype,1,nSubmode,b90, &
|
|
nFadingModel,dat4,snr2,irc)
|
|
enddo
|
|
nc1z=nc1
|
|
nc2z=nc2
|
|
ng2z=ng2
|
|
maxaptypez=maxaptype
|
|
endif
|
|
naptype=maxaptype
|
|
npts2=NFFT2
|
|
|
|
!###
|
|
c00(0:NFFT2-1)=conjg(cy)
|
|
!###
|
|
|
|
call sync64(c00,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk0,sync, &
|
|
sync2,width)
|
|
|
|
nfreq=nint(f0)
|
|
if(mode64.eq.1 .and. minsync.ge.0 .and. (sync-7.0).lt.minsync) go to 900
|
|
a=0.
|
|
a(1)=-f0
|
|
call twkfreq(c00,c0,npts2,6000.0,a)
|
|
|
|
irc=-99
|
|
s3lim=20.
|
|
itz=11
|
|
if(mode64.eq.4) itz=9
|
|
if(mode64.eq.2) itz=7
|
|
if(mode64.eq.1) itz=5
|
|
|
|
LL=64*(mode64+2)
|
|
NN=63
|
|
napmin=99
|
|
do itry0=1,5
|
|
idt=itry0/2
|
|
if(mod(itry0,2).eq.0) idt=-idt
|
|
jpk=jpk0 + 750*idt
|
|
call spec64(c0,npts2,mode64,jpk,s3a,LL,NN)
|
|
call pctile(s3a,LL*NN,40,base)
|
|
s3a=s3a/base
|
|
where(s3a(1:LL*NN)>s3lim) s3a(1:LL*NN)=s3lim
|
|
do iter=itz,0,-2
|
|
b90=1.728**iter
|
|
if(b90.gt.230.0) cycle
|
|
if(b90.lt.0.15*width) exit
|
|
s3(1:LL*NN)=s3a(1:LL*NN)
|
|
call timer('qra64_de',0)
|
|
call qra64_dec(s3,nc1,nc2,ng2,naptype,0,nSubmode,b90, &
|
|
nFadingModel,dat4,snr2,irc)
|
|
call timer('qra64_de',1)
|
|
if(irc.eq.0) go to 10
|
|
if(irc.gt.0) call badmsg(irc,dat4,nc1,nc2,ng2)
|
|
iirc=max(0,min(irc,11))
|
|
if(irc.gt.0 .and. nap(iirc).lt.napmin) then
|
|
dat4x=dat4
|
|
b90x=b90
|
|
snr2x=snr2
|
|
napmin=nap(iirc)
|
|
irckeep=irc
|
|
dtxkeep=jpk/6000.0 - 1.0
|
|
itry0keep=itry0
|
|
iterkeep=iter
|
|
endif
|
|
enddo
|
|
if(irc.eq.0) exit
|
|
enddo
|
|
|
|
if(napmin.ne.99) then
|
|
dat4=dat4x
|
|
b90=b90x
|
|
snr2=snr2x
|
|
irc=irckeep
|
|
dtx=dtxkeep
|
|
itry0=itry0keep
|
|
iter=iterkeep
|
|
endif
|
|
10 decoded=' '
|
|
|
|
if(irc.ge.0) then
|
|
call unpackmsg(dat4,decoded) !Unpack the user message
|
|
call fmtmsg(decoded,iz)
|
|
if(index(decoded,"000AAA ").ge.1) then
|
|
! Suppress a certain type of garbage decode.
|
|
decoded=' '
|
|
irc=-1
|
|
endif
|
|
nft=100 + irc
|
|
nsnr=nint(snr2)
|
|
else
|
|
snr2=0.
|
|
endif
|
|
|
|
900 if(irc.lt.0) then
|
|
sy=max(1.0,sync)
|
|
if(nSubmode.eq.0) nsnr=nint(10.0*log10(sy)-35.0) !A
|
|
if(nSubmode.eq.1) nsnr=nint(10.0*log10(sy)-34.0) !B
|
|
if(nSubmode.eq.2) nsnr=nint(10.0*log10(sy)-29.0) !C
|
|
if(nSubmode.eq.3) nsnr=nint(10.0*log10(sy)-29.0) !D
|
|
if(nSubmode.eq.4) nsnr=nint(10.0*log10(sy)-24.0) !E
|
|
endif
|
|
|
|
npol=0
|
|
cp='H'
|
|
ntxpol=0
|
|
if(irc.ge.0) then
|
|
write(*,1010) ikHz,nfreq,npol,nutc,dtx,nsnr,cmode,decoded,irc,ntxpol,cp
|
|
1010 format('!',i3,i5,i4,i6.4,f5.1,i5,1x,a1,1x,a22,i2,i5,1x,a1)
|
|
nwrite_qra64=nwrite_qra64+1
|
|
else
|
|
write(*,1010) ikHz,nfreq,npol,nutc,dtx,nsnr,cmode
|
|
nwrite_qra64=nwrite_qra64+1
|
|
endif
|
|
|
|
999 return
|
|
end subroutine qra64c
|