From d0f0d420a9e5c4c8ca185ecb9f344d3fb2347c51 Mon Sep 17 00:00:00 2001 From: Steve Franke Date: Fri, 19 Oct 2018 16:52:00 -0500 Subject: [PATCH] Convert ft8sim.f90 to use 77bit messages. Remove ft8sim2.f90. --- CMakeLists.txt | 4 -- lib/ft8/ft8sim.f90 | 126 +++++++++++++++++---------------------------- 2 files changed, 48 insertions(+), 82 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 786864bf2..33d59e642 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -456,7 +456,6 @@ set (wsjt_FSRCS lib/ft8/ft8code.f90 lib/ft8/ft8_downsample.f90 lib/ft8/ft8sim.f90 - lib/ft8/ft8sim2.f90 lib/gen4.f90 lib/gen65.f90 lib/gen9.f90 @@ -1250,9 +1249,6 @@ target_link_libraries (ft8code wsjt_fort wsjt_cxx) add_executable (ft8sim lib/ft8/ft8sim.f90 wsjtx.rc) target_link_libraries (ft8sim wsjt_fort wsjt_cxx) -add_executable (ft8sim2 lib/ft8/ft8sim2.f90 wsjtx.rc) -target_link_libraries (ft8sim2 wsjt_fort wsjt_cxx) - add_executable (msk144sd lib/msk144sd.f90 wsjtx.rc) target_link_libraries (msk144sd wsjt_fort wsjt_cxx) diff --git a/lib/ft8/ft8sim.f90 b/lib/ft8/ft8sim.f90 index f753128dc..b06a5ff75 100644 --- a/lib/ft8/ft8sim.f90 +++ b/lib/ft8/ft8sim.f90 @@ -1,14 +1,16 @@ -program ft8sim +program ft8sim2 -! Generate simulated data for a 15-second HF/6m mode using 8-FSK. +! Generate simulated "type 2" ft8 files ! Output is saved to a *.wav file. use wavhdr + use packjt77 include 'ft8_params.f90' !Set various constants parameter (NWAVE=NN*NSPS) type(hdr) h !Header for .wav file character arg*12,fname*17 - character msg*37,msgsent*37,msg0*37 + character msg37*37,msgsent37*37,msg40*40 + character c77*77 complex c0(0:NMAX-1) complex c(0:NMAX-1) real wave(NMAX) @@ -19,14 +21,13 @@ program ft8sim ! Get command-line argument(s) nargs=iargc() if(nargs.ne.8) then - print*,'Usage: ft8sim "message" nsig|f0 DT fdop del width nfiles snr' - print*,'Examples: ft8sim "K1ABC W9XYZ EN37" 1500.0 0.0 0.1 1.0 0 10 -18' - print*,' ft8sim "K1ABC W9XYZ EN37" 10 0.0 0.1 1.0 25 10 -18' - print*,' ft8sim "K1ABC W9XYZ EN37" 25 0.0 0.1 1.0 25 10 -18' - print*,' ft8sim "K1ABC RR73; W9XYZ -11" 300 0 0 0 25 1 -10' + print*,'Usage: ft8sim2 "message" f0 DT fdop del width nfiles snr' + print*,'Examples: ft8sim2 "K1ABC W9XYZ EN37" 1500.0 0.0 0.1 1.0 0 10 -18' + print*,' ft8sim2 "WA9XYZ/R KA1ABC/R FN42" 1500.0 0.0 0.1 1.0 0 10 -18' + print*,' ft8sim2 "K1ABC RR73; W9XYZ -11" 300 0 0 0 25 1 -10' go to 999 endif - call getarg(1,msg) !Message to be transmitted + call getarg(1,msg37) !Message to be transmitted call getarg(2,arg) read(arg,*) f0 !Frequency (only used for single-signal) call getarg(3,arg) @@ -61,84 +62,56 @@ program ft8sim if(snrdb.gt.90.0) sig=1.0 txt=NN*NSPS/12000.0 -! Source-encode, then get itone() - if(index(msg,';').le.0) then - i3bit=0 - call genft8(msg,i3bit,0,1,msgsent,msgbits,itone) - 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) - else - call foxgen_wrap(msg,msgbits,itone) - write(*,1001) f0,xdt,txt,snrdb,bw,msg -1001 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, & - ' BW:',f4.1,2x,a37) - endif + ! Source-encode, then get itone() + i3=-1 + n3=-1 + call pack77(msg37,i3,n3,c77) + call genft8_174_91(msg37,i3,n3,msgsent37,msgbits,itone) - write(*,1030) msgbits(1:56) -1030 format(/'Call1: ',28i1,' Call2: ',28i1) - write(*,1032) msgbits(57:72),msgbits(73:75) -1032 format('Grid: ',16i1,' 3Bit: ',3i1) - write(*,1034) itone -1034 format(/'Channel symbols:'/79i1/) + write(*,*) + write(*,'(a23,a37,3x,a7,i1,a1,i1)') 'New Style FT8 Message: ',msgsent37,'i3.n3: ',i3,'.',n3 + write(*,1000) f0,xdt,txt,snrdb,bw +1000 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, & + ' BW:',f4.1) + write(*,*) + if(i3.eq.1) then + write(*,*) ' mycall hiscall hisgrid' + write(*,'(28i1,1x,i1,1x,28i1,1x,i1,1x,i1,1x,15i1,1x,3i1)') msgbits(1:77) + else + write(*,'(a14)') 'Message bits: ' + write(*,'(77i1)') msgbits + endif + write(*,*) + write(*,'(a17)') 'Channel symbols: ' + write(*,'(79i1)') itone + write(*,*) call sgran() msg0=msg do ifile=1,nfiles - c=0. - do isig=1,nsig - c0=0. - if(nsig.eq.2) then - if(index(msg,'R-').gt.0) f0=500 - i1=index(msg,' ') - msg(i1+4:i1+4)=char(ichar('A')+isig-1) - if(isig.eq.2) then - f0=f0+100 - endif - call genft8(msg,i3bit,msgsent,msgbits,itone) - endif - if(nsig.eq.25) then - f0=(isig+2)*100.0 - else if(nsig.eq.50) then - msg=msg0 - f0=1000.0 + (isig-1)*60.0 - i1=index(msg,' ') - i2=index(msg(i1+1:),' ') + i1 - msg(i1+2:i1+2)=char(ichar('0')+mod(isig-1,10)) - msg(i1+3:i1+3)=char(ichar('A')+mod(isig-1,26)) - msg(i1+4:i1+4)=char(ichar('A')+mod(isig-1,26)) - msg(i1+5:i1+5)=char(ichar('A')+mod(isig-1,26)) - write(msg(i2+3:i2+4),'(i2.2)') isig-1 - if(ifile.ge.2 .and. isig.eq.ifile-1) then - write(msg(i2+1:i2+4),1002) -isig -1002 format('R',i3.2) - f0=600.0 + mod(isig-1,5)*60.0 - endif - call genft8(msg,i3bit,msgsent,msgbits,itone) - endif -! k=nint((xdt+0.5+0.01*gran())/dt) - k=nint((xdt+0.5)/dt) - ia=k - phi=0.0 - do j=1,NN !Generate complex waveform - dphi=twopi*(f0*dt+itone(j)/real(NSPS)) - do i=1,NSPS - if(k.ge.0 .and. k.lt.NMAX) c0(k)=cmplx(cos(phi),sin(phi)) - k=k+1 - phi=mod(phi+dphi,twopi) - enddo + k=nint((xdt+0.5)/dt) + ia=k + phi=0.0 + c0=0.0 + do j=1,NN !Generate complex waveform + dphi=twopi*(f0*dt+itone(j)/real(NSPS)) + do i=1,NSPS + if(k.ge.0 .and. k.lt.NMAX) c0(k)=cmplx(cos(phi),sin(phi)) + k=k+1 + phi=mod(phi+dphi,twopi) enddo - if(fspread.ne.0.0 .or. delay.ne.0.0) call watterson(c0,NMAX,fs,delay,fspread) - c=c+sig*c0 enddo + if(fspread.ne.0.0 .or. delay.ne.0.0) call watterson(c0,NMAX,fs,delay,fspread) + c=sig*c0 + ib=k wave=real(c) peak=maxval(abs(wave(ia:ib))) rms=sqrt(dot_product(wave(ia:ib),wave(ia:ib))/NWAVE) nslots=1 if(width.gt.0.0) call filt8(f0,nslots,width,wave) - + if(snrdb.lt.90) then do i=1,NMAX !Add gaussian noise at specified SNR xnoise=gran() @@ -159,8 +132,5 @@ program ft8sim close(10) write(*,1110) ifile,xdt,f0,snrdb,fname 1110 format(i4,f7.2,f8.2,f7.1,2x,a17) - enddo - -999 end program ft8sim - - + enddo +999 end program ft8sim2