Further work on ft8sim and ft8d.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7723 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Joe Taylor 2017-06-16 13:27:17 +00:00
parent ee9aab4d18
commit 19965050b9
4 changed files with 38 additions and 24 deletions

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@ -4,7 +4,6 @@ parameter (ND=58) !Data symbols
parameter (NS=21) !Sync symbols (3 @ Costas 7x7)
parameter (NN=NS+ND) !Total channel symbols (79)
parameter (NSPS=2048) !Samples per symbol at 12000 S/s
parameter (N7=7*NSPS) !Samples in Costas 7x7 array (14,336)
parameter (NZ=NSPS*NN) !Samples in full 15 s waveform (161,792)
parameter (NMAX=15*12000) !Samples in iwave (180,000)
parameter (NFFT1=2*NSPS, NH1=NFFT1/2) !Length of FFTs for symbol spectra

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@ -12,7 +12,7 @@ program ft8d
include 'ft8_params.f90'
parameter(NRECENT=10)
character*12 recent_calls(NRECENT)
character*12 recent_calls(NRECENT),arg
character message*22,infile*80,datetime*13
real s(NH1,NHSYM)
real s1(0:7,ND)
@ -21,13 +21,20 @@ program ft8d
integer ihdr(11)
integer*2 iwave(NMAX) !Generated full-length waveform
! integer*1 idat(7)
integer*1 decoded(KK),apmask(ND),cw(ND)
integer*1 decoded(KK),apmask(3*ND),cw(3*ND)
integer*8 count0,count1,clkfreq
nargs=iargc()
if(nargs.lt.1) then
print*,'Usage: ft8d file1 [file2 ...]'
if(nargs.lt.3) then
print*,'Usage: ft8d MaxIt Norder file1 [file2 ...]'
print*,'Example ft8d 40 2 *.wav'
go to 999
endif
call getarg(1,arg)
read(arg,*) max_iterations
call getarg(2,arg)
read(arg,*) norder
nfiles=nargs-2
twopi=8.0*atan(1.0)
fs=12000.0 !Sample rate
@ -36,15 +43,22 @@ program ft8d
ts=2*NSPS*dt !Duration of OQPSK symbols (s)
baud=1.0/tt !Keying rate (baud)
txt=NZ*dt !Transmission length (s)
nsync=0
ngood=0
nbad=0
tsec=0.
do ifile=1,nargs
call getarg(ifile,infile)
do ifile=1,nfiles
call getarg(ifile+2,infile)
open(10,file=infile,status='old',access='stream')
read(10,end=999) ihdr,iwave
close(10)
j2=index(infile,'.wav')
read(infile(j2-6:j2-1),*) nutc
datetime=infile(j2-13:j2-1)
call system_clock(count0,clkfreq)
! call ft8filbig(iwave,NN*NSPS)
call sync8(iwave,xdt,f1,s)
xsnr=0.
@ -85,28 +99,30 @@ program ft8d
ss=0.84
llr=2.0*rxdata/(ss*ss)
apmask=0
max_iterations=40
ifer=0
call bpdecode174(llr,apmask,max_iterations,decoded,niterations)
if(niterations.lt.0) then
write(41,*) llr,apmask,max_iterations,decoded,niterations
call osd174(llr,2,decoded,niterations,cw)
write(42,*) llr,apmask,max_iterations,decoded,niterations
! if(niterations.lt.0) stop
endif
if(niterations.lt.0) call osd174(llr,norder,decoded,nharderrors,cw)
nbadcrc=0
if(niterations.ge.0) call chkcrc12a(decoded,nbadcrc)
if(niterations.lt.0 .or. nbadcrc.ne.0) ifer=1
call chkcrc12a(decoded,nbadcrc)
message=' '
if(ifer.eq.0) then
if(nbadcrc.eq.0) then
call extractmessage174(decoded,message,ncrcflag,recent_calls,nrecent)
endif
nsnr=nint(xsnr)
write(13,1110) datetime,0,nsnr,xdt,freq,message,nfdot
1110 format(a11,2i4,f6.2,f12.7,2x,a22,i3)
write(13,1110) datetime,0,nsnr,xdt,f1,niterations,nharderrors,message
1110 format(a13,2i4,f6.2,f7.1,2i4,2x,a22)
write(*,1112) datetime(8:13),nsnr,xdt,nint(f1),message
1112 format(a6,i4,f5.1,i6,2x,a22)
enddo ! ifile loop
if(abs(xdt).le.0.1 .or. abs(f1-1500).le.2.93) nsync=nsync+1
if(message.eq.'K1ABC W9XYZ EN37 ') ngood=ngood+1
if(message.ne.'K1ABC W9XYZ EN37 ' .and. &
message.ne.' ') nbad=nbad+1
call system_clock(count1,clkfreq)
tsec=tsec+float(count1-count0)/float(clkfreq)
enddo ! ifile loop
write(*,1100) max_iterations,norder,float(nsync)/nfiles,float(ngood)/nfiles, &
float(nbad)/nfiles,tsec/nfiles
1100 format(2i5,3f8.4,f9.3)
999 end program ft8d

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@ -50,7 +50,6 @@ program ft8sim
write(*,1000) f0,xdt,txt,snrdb,bw,msgsent
1000 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, &
' BW:',f4.1,2x,a22)
phi=0.0
c0=0.
k=-1 + nint(xdt/dt)

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@ -1,6 +1,6 @@
subroutine pctile(x,npts,npct,xpct)
parameter (NMAX=100000)
parameter (NMAX=128*1024)
real*4 x(npts)
real*4 tmp(NMAX)