mirror of https://github.com/saitohirga/WSJT-X.git
Housekeeping.
This commit is contained in:
Steven Franke
parent
0f74741f1d
commit
c0da6ce265
|
|
@ -434,8 +434,6 @@ set (wsjt_FSRCS
|
|||
lib/extract.f90
|
||||
lib/extract4.f90
|
||||
lib/extractmessage77.f90
|
||||
lib/ft8/extractmessage174.f90
|
||||
lib/ft8/extractmessage174_91.f90
|
||||
lib/fano232.f90
|
||||
lib/fast9.f90
|
||||
lib/fast_decode.f90
|
||||
|
|
@ -466,7 +464,6 @@ set (wsjt_FSRCS
|
|||
lib/ft8/ft8b.f90
|
||||
lib/ft8/ft8code.f90
|
||||
lib/ft8/ft8_downsample.f90
|
||||
lib/ft8/ft8sim_fsk.f90
|
||||
lib/ft8/ft8sim.f90
|
||||
lib/gen4.f90
|
||||
lib/gen65.f90
|
||||
|
|
@ -1316,9 +1313,6 @@ target_link_libraries (ft8code wsjt_fort wsjt_cxx)
|
|||
add_executable (ft4code lib/ft4/ft4code.f90 wsjtx.rc)
|
||||
target_link_libraries (ft4code wsjt_fort wsjt_cxx)
|
||||
|
||||
add_executable (ft8sim_fsk lib/ft8/ft8sim_fsk.f90 wsjtx.rc)
|
||||
target_link_libraries (ft8sim_fsk wsjt_fort wsjt_cxx)
|
||||
|
||||
add_executable (ft8sim lib/ft8/ft8sim.f90 wsjtx.rc)
|
||||
target_link_libraries (ft8sim wsjt_fort wsjt_cxx)
|
||||
|
||||
|
|
|
|||
|
|
@ -2,57 +2,57 @@ subroutine encode174_91(message77,codeword)
|
|||
!
|
||||
! Add a 14-bit CRC to a 77-bit message and return a 174-bit codeword
|
||||
!
|
||||
use, intrinsic :: iso_c_binding
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
use, intrinsic :: iso_c_binding
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
|
||||
integer, parameter:: N=174, K=91, M=N-K
|
||||
character*91 tmpchar
|
||||
integer*1 codeword(N)
|
||||
integer*1 gen(M,K)
|
||||
integer*1 message77(77),message(K)
|
||||
integer*1 pchecks(M)
|
||||
integer*1, target :: i1MsgBytes(12)
|
||||
include "ldpc_174_91_c_generator.f90"
|
||||
logical first
|
||||
data first/.true./
|
||||
save first,gen
|
||||
integer, parameter:: N=174, K=91, M=N-K
|
||||
character*91 tmpchar
|
||||
integer*1 codeword(N)
|
||||
integer*1 gen(M,K)
|
||||
integer*1 message77(77),message(K)
|
||||
integer*1 pchecks(M)
|
||||
integer*1, target :: i1MsgBytes(12)
|
||||
include "ldpc_174_91_c_generator.f90"
|
||||
logical first
|
||||
data first/.true./
|
||||
save first,gen
|
||||
|
||||
if( first ) then ! fill the generator matrix
|
||||
gen=0
|
||||
do i=1,M
|
||||
do j=1,23
|
||||
read(g(i)(j:j),"(Z1)") istr
|
||||
ibmax=4
|
||||
if(j.eq.23) ibmax=3
|
||||
do jj=1, ibmax
|
||||
icol=(j-1)*4+jj
|
||||
if( btest(istr,4-jj) ) gen(i,icol)=1
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
first=.false.
|
||||
endif
|
||||
if( first ) then ! fill the generator matrix
|
||||
gen=0
|
||||
do i=1,M
|
||||
do j=1,23
|
||||
read(g(i)(j:j),"(Z1)") istr
|
||||
ibmax=4
|
||||
if(j.eq.23) ibmax=3
|
||||
do jj=1, ibmax
|
||||
icol=(j-1)*4+jj
|
||||
if( btest(istr,4-jj) ) gen(i,icol)=1
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
first=.false.
|
||||
endif
|
||||
|
||||
! Add 14-bit CRC to form 91-bit message+CRC14
|
||||
write(tmpchar,'(77i1)') message77
|
||||
tmpchar(78:80)='000'
|
||||
i1MsgBytes=0
|
||||
read(tmpchar,'(10b8)') i1MsgBytes(1:10)
|
||||
ncrc14 = crc14 (c_loc (i1MsgBytes), 12)
|
||||
write(tmpchar(78:91),'(b14)') ncrc14
|
||||
read(tmpchar,'(91i1)') message
|
||||
write(tmpchar,'(77i1)') message77
|
||||
tmpchar(78:80)='000'
|
||||
i1MsgBytes=0
|
||||
read(tmpchar,'(10b8)') i1MsgBytes(1:10)
|
||||
ncrc14 = crc14 (c_loc (i1MsgBytes), 12)
|
||||
write(tmpchar(78:91),'(b14)') ncrc14
|
||||
read(tmpchar,'(91i1)') message
|
||||
|
||||
do i=1,M
|
||||
nsum=0
|
||||
do j=1,K
|
||||
nsum=nsum+message(j)*gen(i,j)
|
||||
enddo
|
||||
pchecks(i)=mod(nsum,2)
|
||||
enddo
|
||||
do i=1,M
|
||||
nsum=0
|
||||
do j=1,K
|
||||
nsum=nsum+message(j)*gen(i,j)
|
||||
enddo
|
||||
pchecks(i)=mod(nsum,2)
|
||||
enddo
|
||||
|
||||
codeword(1:K)=message
|
||||
codeword(K+1:N)=pchecks
|
||||
codeword(1:K)=message
|
||||
codeword(K+1:N)=pchecks
|
||||
|
||||
return
|
||||
return
|
||||
end subroutine encode174_91
|
||||
|
|
|
|||
|
|
@ -1,49 +1,49 @@
|
|||
subroutine encode174_91_nocrc(message,codeword)
|
||||
!
|
||||
! Encode a 91-bit message and return a 174-bit codeword.
|
||||
! Encode a 91-bit message and return a 174-bit codeword.
|
||||
!
|
||||
use, intrinsic :: iso_c_binding
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
use, intrinsic :: iso_c_binding
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
|
||||
integer, parameter:: N=174, K=91, M=N-K
|
||||
character*91 tmpchar
|
||||
integer*1 codeword(N)
|
||||
integer*1 gen(M,K)
|
||||
integer*1 message(K)
|
||||
integer*1 pchecks(M)
|
||||
integer*1, target :: i1MsgBytes(12)
|
||||
include "ldpc_174_91_c_generator.f90"
|
||||
logical first
|
||||
data first/.true./
|
||||
save first,gen
|
||||
integer, parameter:: N=174, K=91, M=N-K
|
||||
character*91 tmpchar
|
||||
integer*1 codeword(N)
|
||||
integer*1 gen(M,K)
|
||||
integer*1 message(K)
|
||||
integer*1 pchecks(M)
|
||||
integer*1, target :: i1MsgBytes(12)
|
||||
include "ldpc_174_91_c_generator.f90"
|
||||
logical first
|
||||
data first/.true./
|
||||
save first,gen
|
||||
|
||||
if( first ) then ! fill the generator matrix
|
||||
gen=0
|
||||
do i=1,M
|
||||
do j=1,23
|
||||
read(g(i)(j:j),"(Z1)") istr
|
||||
ibmax=4
|
||||
if(j.eq.23) ibmax=3
|
||||
do jj=1, ibmax
|
||||
icol=(j-1)*4+jj
|
||||
if( btest(istr,4-jj) ) gen(i,icol)=1
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
first=.false.
|
||||
endif
|
||||
if( first ) then ! fill the generator matrix
|
||||
gen=0
|
||||
do i=1,M
|
||||
do j=1,23
|
||||
read(g(i)(j:j),"(Z1)") istr
|
||||
ibmax=4
|
||||
if(j.eq.23) ibmax=3
|
||||
do jj=1, ibmax
|
||||
icol=(j-1)*4+jj
|
||||
if( btest(istr,4-jj) ) gen(i,icol)=1
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
first=.false.
|
||||
endif
|
||||
|
||||
do i=1,M
|
||||
nsum=0
|
||||
do j=1,K
|
||||
nsum=nsum+message(j)*gen(i,j)
|
||||
enddo
|
||||
pchecks(i)=mod(nsum,2)
|
||||
enddo
|
||||
do i=1,M
|
||||
nsum=0
|
||||
do j=1,K
|
||||
nsum=nsum+message(j)*gen(i,j)
|
||||
enddo
|
||||
pchecks(i)=mod(nsum,2)
|
||||
enddo
|
||||
|
||||
codeword(1:K)=message
|
||||
codeword(K+1:N)=pchecks
|
||||
codeword(1:K)=message
|
||||
codeword(K+1:N)=pchecks
|
||||
|
||||
return
|
||||
return
|
||||
end subroutine encode174_91_nocrc
|
||||
|
|
|
|||
|
|
@ -1,40 +0,0 @@
|
|||
subroutine extractmessage174(decoded,msgreceived,ncrcflag)
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
use packjt
|
||||
|
||||
character*22 msgreceived
|
||||
character*87 cbits
|
||||
integer*1 decoded(87)
|
||||
integer*1, target:: i1Dec8BitBytes(11)
|
||||
integer*4 i4Dec6BitWords(12)
|
||||
|
||||
! Write decoded bits into cbits: 75-bit message plus 12-bit CRC
|
||||
write(cbits,1000) decoded
|
||||
1000 format(87i1)
|
||||
read(cbits,1001) i1Dec8BitBytes
|
||||
1001 format(11b8)
|
||||
read(cbits,1002) ncrc12 !Received CRC12
|
||||
1002 format(75x,b12)
|
||||
|
||||
i1Dec8BitBytes(10)=iand(i1Dec8BitBytes(10),transfer(128+64+32,0_1))
|
||||
i1Dec8BitBytes(11)=0
|
||||
icrc12=crc12(c_loc(i1Dec8BitBytes),11) !CRC12 computed from 75 msg bits
|
||||
|
||||
if(ncrc12.eq.icrc12 .or. sum(decoded(57:87)).eq.0) then !### Kludge ###
|
||||
! CRC12 checks out --- unpack 72-bit message
|
||||
do ibyte=1,12
|
||||
itmp=0
|
||||
do ibit=1,6
|
||||
itmp=ishft(itmp,1)+iand(1_1,decoded((ibyte-1)*6+ibit))
|
||||
enddo
|
||||
i4Dec6BitWords(ibyte)=itmp
|
||||
enddo
|
||||
call unpackmsg(i4Dec6BitWords,msgreceived)
|
||||
ncrcflag=1
|
||||
else
|
||||
msgreceived=' '
|
||||
ncrcflag=-1
|
||||
endif
|
||||
return
|
||||
end subroutine extractmessage174
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
subroutine extractmessage174_91(decoded,msgreceived,ncrcflag)
|
||||
use iso_c_binding, only: c_loc,c_size_t
|
||||
use crc
|
||||
use packjt
|
||||
|
||||
character*22 msgreceived
|
||||
character*91 cbits
|
||||
integer*1 decoded(91)
|
||||
integer*1, target:: i1Dec8BitBytes(12)
|
||||
integer*4 i4Dec6BitWords(12)
|
||||
|
||||
! Write decoded bits into cbits: 77-bit message plus 14-bit CRC
|
||||
write(cbits,1000) decoded
|
||||
1000 format(91i1)
|
||||
read(cbits,1001) i1Dec8BitBytes
|
||||
1001 format(12b8)
|
||||
read(cbits,1002) ncrc14 !Received CRC12
|
||||
1002 format(77x,b14)
|
||||
|
||||
i1Dec8BitBytes(10)=iand(i1Dec8BitBytes(10),transfer(128+64+32+16+8,0_1))
|
||||
i1Dec8BitBytes(11:12)=0
|
||||
icrc14=crc14(c_loc(i1Dec8BitBytes),12) !CRC12 computed from 75 msg bits
|
||||
|
||||
if(ncrc14.eq.icrc14 .or. sum(decoded(57:87)).eq.0) then !### Kludge ###
|
||||
! CRC14 checks out --- unpack 72-bit message
|
||||
do ibyte=1,12
|
||||
itmp=0
|
||||
do ibit=1,6
|
||||
itmp=ishft(itmp,1)+iand(1_1,decoded((ibyte-1)*6+ibit))
|
||||
enddo
|
||||
i4Dec6BitWords(ibyte)=itmp
|
||||
enddo
|
||||
call unpackmsg(i4Dec6BitWords,msgreceived)
|
||||
ncrcflag=1
|
||||
else
|
||||
msgreceived=' '
|
||||
ncrcflag=-1
|
||||
endif
|
||||
return
|
||||
end subroutine extractmessage174_91
|
||||
|
|
@ -1,141 +0,0 @@
|
|||
program ft8sim
|
||||
|
||||
! 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 msg37*37,msgsent37*37
|
||||
character c77*77
|
||||
complex c0(0:NMAX-1)
|
||||
complex c(0:NMAX-1)
|
||||
real wave(NMAX)
|
||||
integer itone(NN)
|
||||
integer*1 msgbits(77)
|
||||
integer*2 iwave(NMAX) !Generated full-length waveform
|
||||
|
||||
! Get command-line argument(s)
|
||||
nargs=iargc()
|
||||
if(nargs.ne.8) then
|
||||
print*,'Usage: ft8sim "message" 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 "WA9XYZ/R KA1ABC/R FN42" 1500.0 0.0 0.1 1.0 0 10 -18'
|
||||
print*,' ft8sim "K1ABC RR73; W9XYZ <KH1/KH7Z> -11" 300 0 0 0 25 1 -10'
|
||||
go to 999
|
||||
endif
|
||||
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)
|
||||
read(arg,*) xdt !Time offset from nominal (s)
|
||||
call getarg(4,arg)
|
||||
read(arg,*) fspread !Watterson frequency spread (Hz)
|
||||
call getarg(5,arg)
|
||||
read(arg,*) delay !Watterson delay (ms)
|
||||
call getarg(6,arg)
|
||||
read(arg,*) width !Filter transition width (Hz)
|
||||
call getarg(7,arg)
|
||||
read(arg,*) nfiles !Number of files
|
||||
call getarg(8,arg)
|
||||
read(arg,*) snrdb !SNR_2500
|
||||
|
||||
nsig=1
|
||||
if(f0.lt.100.0) then
|
||||
nsig=f0
|
||||
f0=1500
|
||||
endif
|
||||
|
||||
nfiles=abs(nfiles)
|
||||
twopi=8.0*atan(1.0)
|
||||
fs=12000.0 !Sample rate (Hz)
|
||||
dt=1.0/fs !Sample interval (s)
|
||||
tt=NSPS*dt !Duration of symbols (s)
|
||||
baud=1.0/tt !Keying rate (baud)
|
||||
bw=8*baud !Occupied bandwidth (Hz)
|
||||
txt=NZ*dt !Transmission length (s)
|
||||
bandwidth_ratio=2500.0/(fs/2.0)
|
||||
sig=sqrt(2*bandwidth_ratio) * 10.0**(0.05*snrdb)
|
||||
if(snrdb.gt.90.0) sig=1.0
|
||||
txt=NN*NSPS/12000.0
|
||||
|
||||
! Source-encode, then get itone()
|
||||
i3=-1
|
||||
n3=-1
|
||||
call pack77(msg37,i3,n3,c77)
|
||||
call genft8(msg37,i3,n3,msgsent37,msgbits,itone)
|
||||
|
||||
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
|
||||
k=nint((xdt+0.5)/dt)
|
||||
ia=max(1,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
|
||||
enddo
|
||||
if(fspread.ne.0.0 .or. delay.ne.0.0) call watterson(c0,NMAX,NWAVE,fs,delay,fspread)
|
||||
c=sig*c0
|
||||
|
||||
ib=min(k,NMAX)
|
||||
wave=real(c)
|
||||
peak=maxval(abs(wave(ia:ib)))
|
||||
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()
|
||||
wave(i)=wave(i) + xnoise
|
||||
enddo
|
||||
endif
|
||||
|
||||
gain=100.0
|
||||
if(snrdb.lt.90.0) then
|
||||
wave=gain*wave
|
||||
else
|
||||
datpk=maxval(abs(wave))
|
||||
fac=32766.9/datpk
|
||||
wave=fac*wave
|
||||
endif
|
||||
if(any(abs(wave).gt.32767.0)) print*,"Warning - data will be clipped."
|
||||
iwave=nint(wave)
|
||||
|
||||
h=default_header(12000,NMAX)
|
||||
write(fname,1102) ifile
|
||||
1102 format('000000_',i6.6,'.wav')
|
||||
open(10,file=fname,status='unknown',access='stream')
|
||||
write(10) h,iwave !Save to *.wav file
|
||||
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
|
||||
Loading…
Reference in New Issue