WSJT-X/lib/jt65.f90

97 lines
2.4 KiB
Fortran
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program jt65
! Test the JT65 decoder for WSJT-X
use options
character c
logical :: display_help=.false.,err
parameter (NZMAX=60*12000)
integer*4 ihdr(11)
integer*2 id2(NZMAX)
real*4 dd(NZMAX)
character*80 infile
character(len=500) optarg
common/tracer/limtrace,lu
equivalence (lenfile,ihdr(2))
type (option) :: long_options(3) = [ &
option ('help',.false.,'h','Display this help message',''), &
option ('ntrials',.true.,'n','default=1000',''), &
option ('single-signal mode',.false.,'s','default=1000','') ]
limtrace=0
lu=12
ntol=50
nfqso=1270
nagain=0
nsubmode=0
ntrials=10000
nlow=200
nhigh=4000
n2pass=2
do
call getopt('hn:s',long_options,c,optarg,narglen,nstat,noffset,nremain,err)
if( nstat .ne. 0 ) then
exit
end if
select case (c)
case ('h')
display_help = .true.
case ('n')
read (optarg(:narglen), *) ntrials
case ('s')
nlow=1250
nhigh=1290
n2pass=1
end select
end do
nargs=iargc()
if(display_help .or. (nargs.lt.1)) then
print*,'Usage: jt65 [-n ntrials] [-s] file1 [file2 ...]'
print*,' -s single-signal mode'
go to 999
endif
open(12,file='timer.out',status='unknown')
call timer('jt65 ',0)
ndecoded=0
do ifile=1,nargs
newdat=1
nfa=nlow
nfb=nhigh
call getarg(ifile+noffset,infile)
if( infile.eq.'' ) goto 900
open(10,file=infile,access='stream',status='old',err=998)
call timer('read ',0)
read(10) ihdr
i1=index(infile,'.wav')
if( i1 .eq. 0 ) i1=index(infile,'.WAV')
read(infile(i1-4:i1-1),*,err=998) nutc
npts=52*12000
read(10) id2(1:npts)
call timer('read ',1)
dd(1:npts)=id2(1:npts)
dd(npts+1:)=0.
call timer('jt65a ',0)
! open(56,file='subtracted.wav',access='stream',status='unknown')
! write(56) ihdr(1:11)
call jt65a(dd,npts,newdat,nutc,nfa,nfb,nfqso,ntol,nsubmode, &
minsync,nagain,n2pass,ntrials, naggressive,ndepth,ndecoded)
call timer('jt65a ',1)
enddo
900 call timer('jt65 ',1)
call timer('jt65 ',101)
! call four2a(a,-1,1,1,1) !Free the memory used for plans
! call filbig(a,-1,1,0.0,0,0,0,0,0) ! (ditto)
go to 999
998 print*,'Cannot read from file:'
print*,infile
999 end program jt65