2018-03-24 07:20:34 -04:00
|
|
|
program ft8d
|
|
|
|
|
|
2018-03-31 04:02:18 -04:00
|
|
|
! Decode FT8 data read from *.c2 files.
|
2018-03-24 07:20:34 -04:00
|
|
|
|
|
|
|
|
include 'ft8_params.f90'
|
|
|
|
|
character infile*80,datetime*13,message*22,msg37*37
|
|
|
|
|
character*22 allmessages(100)
|
2018-03-24 12:00:48 -04:00
|
|
|
character*12 mycall12,hiscall12
|
|
|
|
|
character*6 mygrid6,hisgrid6
|
2018-03-24 07:20:34 -04:00
|
|
|
real s(NH1,NHSYM)
|
|
|
|
|
real sbase(NH1)
|
2018-03-24 12:00:48 -04:00
|
|
|
real candidate(3,200)
|
2018-03-24 07:20:34 -04:00
|
|
|
real dd(NMAX)
|
|
|
|
|
logical newdat,lsubtract,ldupe,bcontest
|
2018-03-24 12:00:48 -04:00
|
|
|
integer apsym(KK)
|
2018-03-24 07:20:34 -04:00
|
|
|
integer allsnrs(100)
|
|
|
|
|
save s,dd
|
|
|
|
|
|
|
|
|
|
nargs=iargc()
|
|
|
|
|
if(nargs.lt.1) then
|
2018-03-24 12:06:33 -04:00
|
|
|
print*,'Usage: ft8d file1 [file2 ...]'
|
|
|
|
|
go to 999
|
2018-03-24 07:20:34 -04:00
|
|
|
endif
|
|
|
|
|
nfiles=nargs
|
|
|
|
|
|
|
|
|
|
twopi=8.0*atan(1.0)
|
|
|
|
|
fs=12000.0 !Sample rate
|
|
|
|
|
dt=1.0/fs !Sample interval (s)
|
|
|
|
|
tt=NSPS*dt !Duration of "itone" symbols (s)
|
|
|
|
|
ts=2*NSPS*dt !Duration of OQPSK symbols (s)
|
|
|
|
|
baud=1.0/tt !Keying rate (baud)
|
|
|
|
|
txt=NZ*dt !Transmission length (s)
|
|
|
|
|
nfa=100
|
|
|
|
|
nfb=3000
|
|
|
|
|
nfqso=1500
|
|
|
|
|
|
|
|
|
|
do ifile=1,nfiles
|
2018-03-24 12:06:33 -04:00
|
|
|
call getarg(ifile,infile)
|
|
|
|
|
open(10,file=infile,status='old',access='stream')
|
2018-03-31 04:02:18 -04:00
|
|
|
read(10,end=999) dd
|
2018-03-24 12:06:33 -04:00
|
|
|
close(10)
|
2018-03-31 04:02:18 -04:00
|
|
|
j2=index(infile,'.c2')
|
2018-03-24 12:06:33 -04:00
|
|
|
read(infile(j2-6:j2-1),*) nutc
|
|
|
|
|
datetime=infile(j2-13:j2-1)
|
|
|
|
|
ndecodes=0
|
|
|
|
|
allmessages=' '
|
|
|
|
|
allsnrs=0
|
2018-03-26 02:37:27 -04:00
|
|
|
ndepth=1
|
|
|
|
|
npass=1
|
|
|
|
|
do ipass=1,npass
|
2018-03-24 12:06:33 -04:00
|
|
|
newdat=.true.
|
|
|
|
|
syncmin=1.5
|
|
|
|
|
if(ipass.eq.1) then
|
|
|
|
|
lsubtract=.true.
|
|
|
|
|
if(ndepth.eq.1) lsubtract=.false.
|
|
|
|
|
elseif(ipass.eq.2) then
|
|
|
|
|
n2=ndecodes
|
|
|
|
|
if(ndecodes.eq.0) cycle
|
|
|
|
|
lsubtract=.true.
|
|
|
|
|
elseif(ipass.eq.3) then
|
|
|
|
|
if((ndecodes-n2).eq.0) cycle
|
|
|
|
|
lsubtract=.false.
|
|
|
|
|
endif
|
|
|
|
|
call sync8(dd,nfa,nfb,syncmin,nfqso,s,candidate,ncand,sbase)
|
|
|
|
|
do icand=1,ncand
|
|
|
|
|
sync=candidate(3,icand)
|
|
|
|
|
f1=candidate(1,icand)
|
|
|
|
|
xdt=candidate(2,icand)
|
|
|
|
|
xbase=10.0**(0.1*(sbase(nint(f1/3.125))-40.0))
|
|
|
|
|
nsnr0=min(99,nint(10.0*log10(sync) - 25.5)) ! ### empirical ###
|
|
|
|
|
call ft8b(dd,newdat,nQSOProgress,nfqso,nftx,ndepth,lft8apon, &
|
|
|
|
|
lapcqonly,napwid,lsubtract,nagain,iaptype,mycall12,mygrid6, &
|
|
|
|
|
hiscall12,bcontest,sync,f1,xdt,xbase,apsym,nharderrors,dmin, &
|
|
|
|
|
nbadcrc,iappass,iera,msg37,xsnr)
|
|
|
|
|
message=msg37(1:22)
|
|
|
|
|
nsnr=nint(xsnr)
|
|
|
|
|
xdt=xdt-0.5
|
|
|
|
|
hd=nharderrors+dmin
|
|
|
|
|
if(nbadcrc.eq.0) then
|
|
|
|
|
if(bcontest) then
|
|
|
|
|
call fix_contest_msg(mygrid6,message)
|
|
|
|
|
msg37(1:22)=message
|
|
|
|
|
endif
|
|
|
|
|
ldupe=.false.
|
|
|
|
|
do id=1,ndecodes
|
|
|
|
|
if(message.eq.allmessages(id).and.nsnr.le.allsnrs(id)) ldupe=.true.
|
|
|
|
|
enddo
|
|
|
|
|
if(.not.ldupe) then
|
|
|
|
|
ndecodes=ndecodes+1
|
|
|
|
|
allmessages(ndecodes)=message
|
|
|
|
|
allsnrs(ndecodes)=nsnr
|
2018-03-24 07:20:34 -04:00
|
|
|
endif
|
2018-03-24 12:06:33 -04:00
|
|
|
write(*,1004) nutc,ncand,icand,ipass,iaptype,iappass, &
|
|
|
|
|
nharderrors,dmin,hd,min(sync,999.0),nint(xsnr), &
|
|
|
|
|
xdt,nint(f1),message
|
|
|
|
|
1004 format(i6.6,2i4,3i2,i3,3f6.1,i4,f6.2,i5,2x,a22)
|
|
|
|
|
endif
|
2018-03-24 07:20:34 -04:00
|
|
|
enddo
|
2018-03-24 12:06:33 -04:00
|
|
|
enddo
|
|
|
|
|
enddo ! ifile loop
|
2018-03-24 07:20:34 -04:00
|
|
|
|
|
|
|
|
999 end program ft8d
|
|
|
|
|
|
