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https://github.com/saitohirga/WSJT-X.git
synced 2025-11-04 05:50:31 -05:00
ft8sim can now generate old (174,87) or new (174,91) frames. Frame type is selected using the itype command line parameter.
This commit is contained in:
Steve Franke
parent
86a5ae6596
commit
772b1bd5fa
@ -462,6 +462,7 @@ set (wsjt_FSRCS
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lib/geniscat.f90
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lib/fsk4hf/genfsk4hf.f90
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lib/ft8/genft8.f90
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lib/ft8/genft8_174_91.f90
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lib/genmsk144.f90
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lib/genmsk40.f90
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lib/fsk4hf/genmskhf.f90
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@ -15,18 +15,18 @@ program ft8sim
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complex c(0:NMAX-1)
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real wave(NMAX)
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integer itone(NN)
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integer*1 msgbits(KK)
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integer*1 msgbits(91)
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integer*2 iwave(NMAX) !Generated full-length waveform
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data mygrid6/'EM48 '/
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! Get command-line argument(s)
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nargs=iargc()
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if(nargs.ne.8) then
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print*,'Usage: ft8sim "message" nsig|f0 DT fdop del width nfiles snr'
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print*,'Examples: ft8sim "K1ABC W9XYZ EN37" 1500.0 0.0 0.1 1.0 0 10 -18'
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print*,' ft8sim "K1ABC W9XYZ EN37" 10 0.0 0.1 1.0 25 10 -18'
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print*,' ft8sim "K1ABC W9XYZ EN37" 25 0.0 0.1 1.0 25 10 -18'
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print*,' ft8sim "K1ABC RR73; W9XYZ <KH1/KH7Z> -11" 300 0 0 0 25 1 -10'
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if(nargs.ne.9) then
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print*,'Usage: ft8sim "message" nsig|f0 DT fdop del width nfiles snr type'
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print*,'Examples: ft8sim "K1ABC W9XYZ EN37" 1500.0 0.0 0.1 1.0 0 10 -18 1'
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print*,' ft8sim "K1ABC W9XYZ EN37" 10 0.0 0.1 1.0 25 10 -18 1'
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print*,' ft8sim "K1ABC W9XYZ EN37" 25 0.0 0.1 1.0 25 10 -18 1'
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print*,' ft8sim "K1ABC RR73; W9XYZ <KH1/KH7Z> -11" 300 0 0 0 25 1 -10 1'
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print*,'Make nfiles negative to invoke 72-bit contest mode.'
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go to 999
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endif
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@ -45,6 +45,9 @@ program ft8sim
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read(arg,*) nfiles !Number of files
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call getarg(8,arg)
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read(arg,*) snrdb !SNR_2500
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call getarg(9,arg)
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read(arg,*) itype !itype=1 for (174,87), itype=2 for (174,91)
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nsig=1
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if(f0.lt.100.0) then
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nsig=f0
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@ -69,7 +72,11 @@ program ft8sim
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if(index(msg40,';').le.0) then
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i3bit=0
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msg=msg40(1:22)
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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if(itype.eq.1) then
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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elseif(itype.eq.2) then
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call genft8_174_91(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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endif
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write(*,1000) f0,xdt,txt,snrdb,bw,msgsent
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1000 format('f0:',f9.3,' DT:',f6.2,' TxT:',f6.1,' SNR:',f6.1, &
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' BW:',f4.1,2x,a22)
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@ -82,8 +89,13 @@ program ft8sim
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write(*,1030) msgbits(1:56)
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1030 format(/'Call1: ',28i1,' Call2: ',28i1)
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write(*,1032) msgbits(57:72),msgbits(73:75),msgbits(76:87)
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if(itype.eq.1) then
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write(*,1032) msgbits(57:72),msgbits(73:75),msgbits(76:87)
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1032 format('Grid: ',16i1,' 3Bit: ',3i1,' CRC12: ',12i1)
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elseif(itype.eq.2) then
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write(*,1033) msgbits(57:72),msgbits(73:77),msgbits(78:91)
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1033 format('Grid: ',16i1,' 5Bit: ',5i1,' CRC14: ',14i1)
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endif
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write(*,1034) itone
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1034 format(/'Channel symbols:'/79i1/)
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@ -99,7 +111,11 @@ program ft8sim
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if(isig.eq.2) then
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f0=f0+100
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endif
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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if(itype.eq.1) then
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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elseif(itype.eq.2) then
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call genft8_174_91(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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endif
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endif
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if(nsig.eq.25) then
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f0=(isig+2)*100.0
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@ -118,7 +134,11 @@ program ft8sim
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1002 format('R',i3.2)
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f0=600.0 + mod(isig-1,5)*60.0
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endif
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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if(itype.eq.1) then
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call genft8(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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elseif(itype.eq.2) then
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call genft8_174_91(msg,mygrid6,bcontest,i3bit,msgsent,msgbits,itone)
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endif
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endif
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k=-1 + nint((xdt+0.5+0.01*gran())/dt)
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! k=-1 + nint((xdt+0.5)/dt)
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53
lib/ft8/genft8_174_91.f90
Normal file
53
lib/ft8/genft8_174_91.f90
Normal file
@ -0,0 +1,53 @@
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subroutine genft8_174_91(msg,mygrid,bcontest,i5bit,msgsent,msgbits,itone)
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! Encode an FT8 message, producing array itone().
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use crc
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use packjt
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include 'ft8_params.f90'
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character*22 msg,msgsent
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character*6 mygrid
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character*91 cbits
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logical bcontest,checksumok
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integer*4 i4Msg6BitWords(12) !72-bit message as 6-bit words
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integer*1 msgbits(91),codeword(174)
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integer*1, target:: i1Msg8BitBytes(12)
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integer itone(79)
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integer icos7(0:6)
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# data icos7/2,5,6,0,4,1,3/ !Costas 7x7 tone pattern
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data icos7/3,1,4,0,6,5,2/ !Costas 7x7 tone pattern
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call packmsg(msg,i4Msg6BitWords,itype,bcontest) !Pack into 12 6-bit bytes
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call unpackmsg(i4Msg6BitWords,msgsent,bcontest,mygrid) !Unpack to get msgsent
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write(cbits,1000) i4Msg6BitWords,8*i5bit
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1000 format(12b6.6,b8.8)
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read(cbits,1001) i1Msg8BitBytes(1:10)
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1001 format(10b8)
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i1Msg8BitBytes(10)=iand(i1Msg8BitBytes(10),128+64+32+16+8)
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i1Msg8BitBytes(11:12)=0
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icrc14=crc14(c_loc(i1Msg8BitBytes),12)
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i1Msg8BitBytes(11)=icrc14/256
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i1Msg8BitBytes(12)=iand (icrc14,255)
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write(cbits,1003) i4Msg6BitWords,i5bit,icrc14
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1003 format(12b6.6,b5.5,b14.14)
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read(cbits,1004) msgbits
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1004 format(91i1)
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call encode174_91(msgbits,codeword) !Encode the test message
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! Message structure: S7 D29 S7 D29 S7
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itone(1:7)=icos7
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itone(36+1:36+7)=icos7
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itone(NN-6:NN)=icos7
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k=7
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do j=1,ND
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i=3*j -2
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k=k+1
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if(j.eq.30) k=k+7
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itone(k)=codeword(i)*4 + codeword(i+1)*2 + codeword(i+2)
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enddo
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return
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end subroutine genft8_174_91
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