mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-18 10:01:57 -05:00
138 lines
4.3 KiB
Fortran
138 lines
4.3 KiB
Fortran
subroutine qra_loops(c00,npts2,nsps,mode,mode64,nsubmode,nFadingModel, &
|
|
ndepth,nc1,nc2,ng2,naptype,jpk0,xdt,f0,width,snr2,irc,dat4)
|
|
|
|
use packjt
|
|
use timer_module, only: timer
|
|
parameter (LN=2176*63) !LN=LL*NN; LL = 64*(mode64+2)
|
|
character*37 decoded
|
|
complex c00(0:npts2-1) !Analytic representation of dd(), 6000 Hz
|
|
complex ,allocatable :: c0(:) !Ditto, with freq shift
|
|
real a(3) !twkfreq params f,f1,f2
|
|
real s3(LN) !Symbol spectra
|
|
real s3avg(LN) !Averaged symbol spectra
|
|
integer dat4(12),dat4x(12) !Decoded message (as 12 integers)
|
|
integer nap(0:11) !AP return codes
|
|
data nap/0,2,3,2,3,4,2,3,6,4,6,6/,nsave/0/
|
|
save nsave,s3avg
|
|
|
|
allocate(c0(0:npts2-1))
|
|
irc=-99
|
|
s3lim=20.
|
|
ibwmax=11
|
|
if(mode64.le.4) ibwmax=9
|
|
ibwmin=ibwmax
|
|
idtmax=3
|
|
call qra_params(ndepth,maxaptype,idfmax,idtmax,ibwmin,ibwmax,maxdist)
|
|
LL=64*(mode64+2)
|
|
NN=63
|
|
napmin=99
|
|
ncall=0
|
|
|
|
do iavg=0,1
|
|
if(iavg.eq.1) then
|
|
idfmax=1
|
|
idtmax=1
|
|
endif
|
|
do idf=1,idfmax
|
|
ndf=idf/2
|
|
if(mod(idf,2).eq.0) ndf=-ndf
|
|
a=0.
|
|
a(1)=-(f0+0.4*ndf)
|
|
call twkfreq(c00,c0,npts2,6000.0,a)
|
|
do idt=1,idtmax
|
|
ndt=idt/2
|
|
if(iavg.eq.0) then
|
|
if(mod(idt,2).eq.0) ndt=-ndt
|
|
jpk=jpk0 + 240*ndt !240/6000 = 0.04 s = tsym/32
|
|
if(jpk.lt.0) jpk=0
|
|
call timer('spec64 ',0)
|
|
call spec64(c0,nsps,mode,mode64,jpk,s3,LL,NN)
|
|
call timer('spec64 ',1)
|
|
call pctile(s3,LL*NN,40,base)
|
|
s3=s3/base
|
|
where(s3(1:LL*NN)>s3lim) s3(1:LL*NN)=s3lim
|
|
else
|
|
s3(1:LL*NN)=s3avg(1:LL*NN)
|
|
endif
|
|
do ibw=ibwmax,ibwmin,-2
|
|
ndist=ndf**2 + ndt**2 + ((ibwmax-ibw)/2)**2
|
|
if(ndist.gt.maxdist) cycle
|
|
b90=1.728**ibw
|
|
if(b90.gt.230.0) cycle
|
|
if(b90.lt.0.15*width) exit
|
|
ncall=ncall+1
|
|
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 200
|
|
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
|
|
xdtkeep=jpk/6000.0 - 1.0
|
|
f0keep=-a(1)
|
|
idfkeep=idf
|
|
idtkeep=idt
|
|
ibwkeep=ibw
|
|
ndistx=ndist
|
|
go to 100 !###
|
|
endif
|
|
enddo ! ibw (b90 loop)
|
|
!### if(iand(ndepth,3).lt.3 .and. irc.ge.0) go to 100
|
|
enddo ! idt (DT loop)
|
|
enddo ! idf (f0 loop)
|
|
! if(iavg.eq.0 .and. abs(jpk0-4320).le.1300) then
|
|
if(iavg.eq.0) then
|
|
a=0.
|
|
a(1)=-f0
|
|
call twkfreq(c00,c0,npts2,6000.0,a)
|
|
jpk=3000 !### These definitions need work ###
|
|
! if(nsps.ge.3600) jpk=4080 !###
|
|
if(nsps.ge.3600) jpk=6000 !###
|
|
call spec64(c0,nsps,mode,mode64,jpk,s3,LL,NN)
|
|
call pctile(s3,LL*NN,40,base)
|
|
s3=s3/base
|
|
where(s3(1:LL*NN)>s3lim) s3(1:LL*NN)=s3lim
|
|
s3avg(1:LL*NN)=s3avg(1:LL*NN)+s3(1:LL*NN)
|
|
nsave=nsave+1
|
|
endif
|
|
if(iavg.eq.0 .and. nsave.lt.2) exit
|
|
enddo ! iavg
|
|
|
|
100 if(napmin.ne.99) then
|
|
dat4=dat4x
|
|
b90=b90x
|
|
snr2=snr2x
|
|
irc=irckeep
|
|
xdt=xdtkeep
|
|
f0=f0keep
|
|
idt=idtkeep
|
|
idf=idfkeep
|
|
ibw=ibwkeep
|
|
ndist=ndistx
|
|
endif
|
|
|
|
200 if(mode.eq.65 .and. nsps.eq.7200/2) xdt=xdt+0.4 !### Empirical -- WHY ??? ###
|
|
|
|
if(irc.ge.0) then
|
|
navg=nsave
|
|
if(iavg.eq.0) navg=0
|
|
!### For tests only:
|
|
open(53,file='fort.53',status='unknown',position='append')
|
|
call unpackmsg(dat4,decoded) !Unpack the user message
|
|
write(53,3053) idf,idt,ibw,b90,xdt,f0,snr2,ndist,irc,navg,decoded(1:22)
|
|
3053 format(3i5,f7.1,f7.2,2f7.1,3i4,2x,a22)
|
|
close(53)
|
|
!###
|
|
nsave=0
|
|
s3avg=0.
|
|
irc=irc + 100*navg
|
|
endif
|
|
return
|
|
end subroutine qra_loops
|