mirror of https://github.com/saitohirga/WSJT-X.git
166 lines
4.9 KiB
Fortran
166 lines
4.9 KiB
Fortran
program fox_sim
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! Simulates QSO exchanges using the proposed FT8 "DXpedition" mode.
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parameter (MAXSIG=5,NCALLS=268)
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character*6 xcall(NCALLS)
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character*4 xgrid(NCALLS)
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integer isnr(NCALLS)
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character*32 fmsg(MAXSIG),fm
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character*22 hmsg(MAXSIG),hm
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character*16 log
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character*6 called(MAXSIG)
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character*4 gcalled(MAXSIG)
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character*6 MyCall
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character*4 MyGrid
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character*8 arg
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character*1 c1,c2,c3,c4
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integer ntot(MAXSIG),irate(MAXSIG),ntimes(MAXSIG)
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logical logit
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common/dxpfifo/nc,isnr,xcall,xgrid
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nargs=iargc()
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if(nargs.ne.2 .and. nargs.ne.4) then
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print*,'Usage: fox_sim nseq maxtimes'
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print*,' fox_sim nseq maxtimes nsig fail'
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print*,' '
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print*,' nseq: number of T/R sequences to execute'
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print*,' maxtimes: number of repeats of same Tx message'
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print*,' nsig: number of simultaneous Tx sigals'
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print*,' fail: receiving error rate'
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go to 999
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endif
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ii1=1
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ii2=5
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jj1=0
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jj2=5
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nseq=80
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if(nargs.ge.2) then
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call getarg(1,arg)
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read(arg,*) nseq
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call getarg(2,arg)
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read(arg,*) maxtimes
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endif
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if(nargs.eq.4) then
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call getarg(3,arg)
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read(arg,*) nsig
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call getarg(4,arg)
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read(arg,*) fail
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ii1=nsig
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ii2=nsig
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jj1=nint(10*fail)
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jj2=nint(10*fail)
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endif
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! Read a file with calls and grids; insert random S/N values.
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! This is used in place of an operator-selected FIFO
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open(10,file='xcall.txt',status='old')
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do i=1,NCALLS
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read(10,1000) xcall(i),xgrid(i)
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1000 format(a6,7x,a4)
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if(i.ne.-99) cycle
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j=mod(i-1,26)
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c1=char(ichar('A')+j)
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k=mod((i-1)/26,26)
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c2=char(ichar('A')+k)
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n=mod((i-1)/260,10)
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c3=char(ichar('0')+n)
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xcall(i)='K'//c2//c3//c1//c1//c1
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j=mod(i-1,18)
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c1=char(ichar('A')+j)
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k=mod((i-1)/18,18)
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c2=char(ichar('A')+k)
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n=mod((i-1)/10,10)
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c4=char(ichar('0')+n)
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n=mod((i-1)/100,10)
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c3=char(ichar('0')+n)
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xgrid(i)=c1//c2//c3//c4
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call random_number(x)
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isnr(i)=-20+int(40*x)
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enddo
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! close(10)
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! Write headings for the summary file
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minutes=nseq/4
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write(13,1002) nseq,minutes,maxtimes
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1002 format(/'Nseq:',i4,' Minutes:',i3,' Maxtimes:',i2// &
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18x,'Logged QSOs',22x,'Rate (QSOs/hour)'/ &
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'fail Nsig: 1 2 3 4 5 1 2 3 4 5'/ &
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71('-'))
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write(*,1003)
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1003 format('Seq s n Fox messages Hound messages Logged info i Rate'/87('-'))
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ntot=0
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irate=0
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MyCall='KH1DX'
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MyGrid='AJ10'
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do jj=jj1,jj2 !Loop over Rx failure rates
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fail=0.1*jj
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do ii=ii1,ii2 !Loop over range of nsig
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nc=0 !Set FIFO pointer to top
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ntimes=1
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nsig=ii
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nlogged=0
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fmsg="CQ KH1DX AJ10"
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hmsg=""
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called=" "
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do iseq=0,nseq !Loop over specified number of sequences
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if(iand(iseq,1).eq.0) then
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do j=1,nsig !Loop over Fox's Tx slots
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fm=fmsg(j)
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hm=hmsg(j)
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! Call fox_tx to determine the next Tx message for this slot
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call fox_tx(maxtimes,fail,called(j),gcalled(j),hm,fm, &
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ntimes(j),log,logit)
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fmsg(j)=fm
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if(logit) then
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! Log this QSO
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nlogged=nlogged+1
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nrate=0
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if(iseq.gt.0) nrate=nint(nlogged*240.0/iseq)
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write(*,1010) iseq,j,ntimes(j),fmsg(j),log,nlogged,nrate
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1010 format(i4.4,2i2,1x,a32,20x,a16,2i4)
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! call log_routine()
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else
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write(*,1010) iseq,j,ntimes(j),fmsg(j)
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endif
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enddo
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! call transmit()
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endif
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if(iand(iseq,1).eq.1) then
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do j=1,nsig !Listen for expected responses
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fm=fmsg(j)
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call fox_rx(fail,called(j),fm,hm)
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if(j.ge.2) then
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if(hm.eq.hmsg(j-1)) hm=""
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endif
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hmsg(j)=hm
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write(*,1020) iseq,j,hmsg(j)
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1020 format(i4.4,i2,37x,a22)
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enddo
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endif
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write(*,1021)
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1021 format(87('-'))
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enddo
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ntot(ii)=nlogged
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irate(ii)=0
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if(iseq.gt.0) irate(ii)=nint(nlogged*3600.0/(15*iseq))
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write(*,1030) nsig,fail,nlogged,nc
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1030 format(/'Nsig:',i3,' Fail:',f4.1,' Logged QSOs:',i4, &
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' Final nc:',i4)
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enddo
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! Write the summary file
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write(13,1100) fail,ntot,irate
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1100 format(f4.1,2x,5i6,5x,5i6)
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enddo
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999 end program fox_sim
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