mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-08 01:56:10 -05:00
82cd0c51af
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2625 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
110 lines
2.7 KiB
Fortran
110 lines
2.7 KiB
Fortran
program jt9
|
|
|
|
! Decoder for JT9. Can run stand-alone, reading data from *.wav files;
|
|
! or as the back end of wsjt-x, with data placed in a shared memory region.
|
|
|
|
character*80 arg,infile
|
|
parameter (NMAX=1800*12000) !Total sample intervals per 30 minutes
|
|
parameter (NDMAX=1800*1500) !Sample intervals at 1500 Hz rate
|
|
parameter (NSMAX=22000) !Max length of saved spectra
|
|
integer*4 ihdr(11)
|
|
real*4 s(NSMAX)
|
|
logical*1 lstrong(0:1023)
|
|
integer*2 id2
|
|
complex c0
|
|
common/jt8com/id2(NMAX),ss(184,NSMAX),savg(NSMAX),c0(NDMAX),nutc,junk(20)
|
|
common/tracer/limtrace,lu
|
|
|
|
nargs=iargc()
|
|
if(nargs.lt.1) then
|
|
print*,'Usage: jt9 TRperiod file1 [file2 ...]'
|
|
print*,' Reads data from *.wav files.'
|
|
print*,''
|
|
print*,' jt9 -s'
|
|
print*,' Gets data from shared memory region.'
|
|
go to 999
|
|
endif
|
|
call getarg(1,arg)
|
|
if(arg(1:2).eq.'-s') then
|
|
! call jt9a
|
|
! call ftnquit
|
|
go to 999
|
|
endif
|
|
read(arg,*) ntrperiod
|
|
ifile1=2
|
|
limtrace=0
|
|
lu=12
|
|
call timer('jt9 ',0) !###
|
|
|
|
nfa=1000
|
|
nfb=2000
|
|
ntol=500
|
|
mousedf=0
|
|
mousefqso=1500
|
|
newdat=1
|
|
nb=0
|
|
nbslider=100
|
|
|
|
! call ftninit('.')
|
|
|
|
do ifile=ifile1,nargs
|
|
call getarg(ifile,infile)
|
|
open(10,file=infile,access='stream',status='old',err=998)
|
|
read(10) ihdr
|
|
i1=index(infile,'.wav')
|
|
read(infile(i1-4:i1-1),*,err=1) nutc0
|
|
go to 2
|
|
1 nutc0=0
|
|
2 nsps=0
|
|
if(ntrperiod.eq.1) nsps=6912
|
|
if(ntrperiod.eq.2) nsps=15360
|
|
if(ntrperiod.eq.5) nsps=40960
|
|
if(ntrperiod.eq.10) nsps=82944
|
|
if(ntrperiod.eq.30) nsps=252000
|
|
if(nsps.eq.0) stop 'Error: bad TRprtiod'
|
|
|
|
kstep=nsps/2
|
|
k=0
|
|
nhsym0=-999
|
|
npts=(60*ntrperiod-6)*12000
|
|
call timer('read_wav',0)
|
|
read(10) id2(1:npts)
|
|
call timer('read_wav',1)
|
|
|
|
! do i=1,npts
|
|
! id2(i)=100.0*sin(6.283185307*1046.875*i/12000.0)
|
|
! enddo
|
|
|
|
! if(ifile.eq.ifile1) call timer('jt9 ',0)
|
|
do iblk=1,npts/kstep
|
|
k=iblk*kstep
|
|
nhsym=(k-2048)/kstep
|
|
if(nhsym.ge.1 .and. nhsym.ne.nhsym0) then
|
|
! Emit signal readyForFFT
|
|
call timer('symspec ',0)
|
|
call symspecx(k,ntrperiod,nsps,ndiskdat,nb,nbslider,pxdb,s,df3, &
|
|
ihsym,nzap,slimit,lstrong)
|
|
call timer('symspec ',1)
|
|
nhsym0=nhsym
|
|
if(ihsym.ge.184) go to 10
|
|
endif
|
|
enddo
|
|
|
|
10 continue
|
|
|
|
nutc=nutc0
|
|
nstandalone=1
|
|
call sync9(ss,df3)
|
|
! call decode0(dd,ss,savg,nstandalone,nfsample)
|
|
enddo
|
|
|
|
call timer('jt9 ',1)
|
|
call timer('jt9 ',101)
|
|
! call ftnquit
|
|
go to 999
|
|
|
|
998 print*,'Cannot open file:'
|
|
print*,infile
|
|
|
|
999 end program jt9
|