mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-10-30 20:40:28 -04:00
116 lines
3.8 KiB
Fortran
116 lines
3.8 KiB
Fortran
program allsim
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! Generate simulated data for WSJT-X modes: JT4, JT9, JT65, FT8, FT4, QRA64,
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! and WSPR. Also unmodulated carrier and 20 WPM CW.
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use wavhdr
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use packjt
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parameter (NMAX=60*12000)
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type(hdr) h !Header for the .wav file
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integer*2 iwave(NMAX) !Generated waveform (no noise)
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integer itone(206) !Channel symbols (values 0-8)
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integer icw(250) !Encoded CW message bits
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integer*1 msgbits(77) !Encoded message bits for FT8, FT4
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real dat(NMAX) !Audio waveform
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complex cwave(NMAX)
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real wave(NMAX)
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character message*22,msgsent*22,arg*8
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character*37 msg37,msgsent37
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nargs=iargc()
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if(nargs.ne.1 .and. nargs.ne.2) then
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print*,'Usage: allsim snr [isig]'
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print*,'Examples: allsim -10 #Include all signal types'
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print*,' allsim -10 6 #Include FT8 only'
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print*,'isig order: 1 2 3 4 5 6 7 8 9'
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print*,' Carrier CW WSPR JT9 JT4 FT8 FT4 QRA64 JT65'
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go to 999
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endif
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call getarg(1,arg)
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read(arg,*) snrdb !S/N in dB (2500 hz reference BW)
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isig=0
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if(nargs.eq.2) then
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call getarg(2,arg)
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read(arg,*) isig
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endif
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message='CQ KA2ABC FN20'
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msg37=message//' '
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rmsdb=25.
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rms=10.0**(0.05*rmsdb)
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sig=10.0**(0.05*snrdb)
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call init_random_seed() !Seed Fortran RANDOM_NUMBER generator
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call sgran() !Seed C rand generator (used in gran)
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h=default_header(12000,NMAX)
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open(10,file='000000_0000.wav',access='stream',status='unknown')
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do i=1,NMAX !Generate gaussian noise
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dat(i)=gran()
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enddo
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itone=0
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if(isig.eq.0 .or. isig.eq.1) then
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call addit(itone,12000,85,6912,400,sig,dat) !Unmodulated carrier
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endif
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if(isig.eq.0 .or. isig.eq.2) then
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call morse('CQ CQ DE KA2ABC KA2ABC',icw,ncw)
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call addcw(icw,ncw,600,sig,dat) !CW
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endif
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if(isig.eq.0 .or. isig.eq.3) then
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call genwspr(message,msgsent,itone)
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call addit(itone,12000,86,8192,800,sig,dat) !WSPR (only 59 s of data)
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endif
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if(isig.eq.0 .or. isig.eq.4) then
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call gen9(message,0,msgsent,itone,itype)
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call addit(itone,12000,85,6912,1000,sig,dat) !JT9
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endif
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if(isig.eq.0 .or. isig.eq.5) then
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call gen4(message,0,msgsent,itone,itype)
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call addit(itone,11025,206,2520,1200,sig,dat) !JT4
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endif
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if(isig.eq.0 .or. isig.eq.6) then
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call genft8(msg37,i3,n3,msgsent37,msgbits,itone) !FT8
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nwave=79*1920
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call gen_ft8wave(itone,79,1920,2.0,12000.0,1400.0,cwave,wave,0,nwave)
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dat(6001:6000+nwave)=dat(6001:6000+nwave) + sig*wave(1:nwave)
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k=30*12000
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dat(6001+k:6000+nwave+k)=dat(6001+k:6000+nwave+k) + sig*wave(1:nwave)
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endif
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if(isig.eq.0 .or. isig.eq.7) then
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call genft4(msg37,0,msgsent37,msgbits,itone) !FT4
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nwave=105*576
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call gen_ft4wave(itone,103,576,12000.0,1600.0,cwave,wave,0,nwave)
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dat(6001:6000+nwave)=dat(6001:6000+nwave) + sig*wave(1:nwave)
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k=15*12000
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dat(6001+k:6000+nwave+k)=dat(6001+k:6000+nwave+k) + sig*wave(1:nwave)
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k=30*12000
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dat(6001+k:6000+nwave+k)=dat(6001+k:6000+nwave+k) + sig*wave(1:nwave)
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k=45*12000
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dat(6001+k:6000+nwave+k)=dat(6001+k:6000+nwave+k) + sig*wave(1:nwave)
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endif
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if(isig.eq.0 .or. isig.eq.8) then
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call genqra64(message,0,msgsent,itone,itype)
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call addit(itone,12000,84,6912,1800,sig,dat) !QRA64
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endif
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if(isig.eq.0 .or. isig.eq.9) then
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call gen65(message,0,msgsent,itone,itype)
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call addit(itone,11025,126,4096,2000,sig,dat) !JT65
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endif
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iwave=nint(rms*dat)
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write(10) h,iwave
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close(10)
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999 end program allsim
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