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https://github.com/saitohirga/WSJT-X.git
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FT4: Subtraction is basically working.
This commit is contained in:
Steve Franke
parent
be72461142
commit
e8d17a9898
@ -1,11 +1,11 @@
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subroutine ft4_downsample(iwave,newdata,f0,c)
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subroutine ft4_downsample(dd,newdata,f0,c)
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! Input: i*2 data in iwave() at sample rate 12000 Hz
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! Input: real data in dd() at sample rate 12000 Hz
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! Output: Complex data in c(), sampled at 1200 Hz
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include 'ft4_params.f90'
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parameter (NFFT2=NMAX/16)
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integer*2 iwave(NMAX)
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real dd(NMAX)
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complex c(0:NMAX/NDOWN-1)
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complex c1(0:NFFT2-1)
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complex cx(0:NMAX/2)
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@ -33,7 +33,7 @@ subroutine ft4_downsample(iwave,newdata,f0,c)
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endif
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if(newdata) then
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x=iwave
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x=dd
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call four2a(x,NMAX,1,-1,0) !r2c FFT to freq domain
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endif
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i0=nint(f0/df)
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@ -9,7 +9,7 @@ parameter (NN2=NS+ND+2) !Total channel symbols (105)
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parameter (NSPS=512) !Samples per symbol at 12000 S/s
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parameter (NZ=NSPS*NN) !Sync and Data samples (52736)
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parameter (NZ2=NSPS*NN2) !Total samples in shaped waveform (53760)
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parameter (NMAX=5*12000) !Samples in iwave (60,000)
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parameter (NMAX=18*3456) !Samples in iwave
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parameter (NFFT1=2048, NH1=NFFT1/2) !Length of FFTs for symbol spectra
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parameter (NSTEP=NSPS) !Coarse time-sync step size
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parameter (NHSYM=(NMAX-NFFT1)/NSTEP) !Number of symbol spectra (1/4-sym steps)
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@ -63,7 +63,7 @@ program ft4sim
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n3=-1
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call pack77(msg37,i3,n3,c77)
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read(c77,'(77i1)') msgbits
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call genft4(msg37,0,msgsent37,itone)
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call genft4(msg37,0,msgsent37,msgbits,itone)
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write(*,*)
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write(*,'(a9,a37,3x,a7,i1,a1,i1)') 'Message: ',msgsent37,'i3.n3: ',i3,'.',n3
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write(*,1000) f0,xdt,txt,snrdb
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@ -15,6 +15,7 @@ program ft4sim_mult
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real wave(NZZ)
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real tmp(NZZ)
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integer itone(NN)
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integer*1 msgbits(77)
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integer*2 iwave(NZZ) !Generated full-length waveform
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integer icos4(4)
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data icos4/0,1,3,2/
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@ -62,7 +63,7 @@ program ft4sim_mult
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i3=-1
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n3=-1
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call pack77(msg37,i3,n3,c77)
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call genft4(msg37,0,msgsent37,itone)
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call genft4(msg37,0,msgsent37,msgbits,itone)
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nwave0=(NN+2)*NSPS
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icmplx=0
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call gen_ft4wave(itone,NN,NSPS,12000.0,f0,cwave0,wave0,icmplx,nwave0)
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@ -1,4 +1,4 @@
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subroutine genft4(msg0,ichk,msgsent,i4tone)
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subroutine genft4(msg0,ichk,msgsent,msgbits,i4tone)
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! Encode an FT4 message
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! Input:
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@ -52,8 +52,16 @@ subroutine genft4(msg0,ichk,msgsent,i4tone)
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call unpack77(c77,0,msgsent,unpk77_success) !Unpack to get msgsent
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if(ichk.eq.1) go to 999
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read(c77,"(77i1)") msgbits
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msgbits=mod(msgbits+rvec,2)
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read(c77,'(77i1)',err=1) msgbits
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if(unpk77_success) go to 2
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1 msgbits=0
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itone=0
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msgsent='*** bad message *** '
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go to 999
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entry get_ft4_tones_from_77bits(msgbits,i4tone)
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2 msgbits=mod(msgbits+rvec,2)
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call encode174_91(msgbits,codeword)
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! Grayscale mapping:
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@ -1,4 +1,4 @@
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subroutine getcandidates4(id,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
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subroutine getcandidates4(dd,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
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ncand,sbase)
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include 'ft4_params.f90'
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@ -9,7 +9,7 @@ subroutine getcandidates4(id,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
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real window(NFFT1)
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complex cx(0:NH1)
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real candidate(3,maxcand)
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integer*2 id(NMAX)
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real dd(NMAX)
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integer indx(NH1)
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integer ipk(1)
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equivalence (x,cx)
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@ -33,7 +33,7 @@ subroutine getcandidates4(id,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
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ia=(j-1)*NSTEP + 1
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ib=ia+NFFT1-1
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if(ib.gt.NMAX) exit
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x=fac*id(ia:ib)*window
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x=fac*dd(ia:ib)*window
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call four2a(x,NFFT1,1,-1,0) !r2c FFT
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do i=1,NH1
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s(i,j)=real(cx(i))**2 + aimag(cx(i))**2
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@ -9,22 +9,23 @@ subroutine subtractft4(dd,itone,f0,dt)
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use timer_module, only: timer
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parameter (NMAX=6*12000,NFRAME=(103+2)*79)
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parameter (NMAX=18*3456,NFRAME=(103+2)*512)
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parameter (NFFT=NMAX,NFILT=1400)
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! parameter (NFFT=NMAX,NFILT=400)
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real*4 dd(NMAX), window(-NFILT/2:NFILT/2), xjunk
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complex cref,camp,cfilt,cw
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integer itone(79)
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integer itone(103)
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logical first
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data first/.true./
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common/heap8/cref(NFRAME),camp(NMAX),cfilt(NMAX),cw(NMAX),xjunk(NFRAME)
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save first
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nstart=dt*12000+1
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nsym=79
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nsps=1920
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nstart=dt*12000+1-512
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nsym=103
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nsps=512
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fs=12000.0
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icmplx=1
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bt=1.0 ! Temporary compromise?
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bt=1.0
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call gen_ft4wave(itone,nsym,nsps,fs,f0,cref,xjunk,icmplx,NFRAME)
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camp=0.
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do i=1,nframe
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@ -1,128 +1,130 @@
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module ft4_decode
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type :: ft4_decoder
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procedure(ft4_decode_callback), pointer :: callback
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contains
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procedure :: decode
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end type ft4_decoder
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abstract interface
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subroutine ft4_decode_callback (this,sync,snr,dt,freq,decoded,nap,qual)
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import ft4_decoder
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implicit none
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class(ft4_decoder), intent(inout) :: this
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real, intent(in) :: sync
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integer, intent(in) :: snr
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real, intent(in) :: dt
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real, intent(in) :: freq
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character(len=37), intent(in) :: decoded
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integer, intent(in) :: nap
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real, intent(in) :: qual
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end subroutine ft4_decode_callback
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end interface
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type :: ft4_decoder
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procedure(ft4_decode_callback), pointer :: callback
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contains
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procedure :: decode
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end type ft4_decoder
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abstract interface
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subroutine ft4_decode_callback (this,sync,snr,dt,freq,decoded,nap,qual)
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import ft4_decoder
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implicit none
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class(ft4_decoder), intent(inout) :: this
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real, intent(in) :: sync
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integer, intent(in) :: snr
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real, intent(in) :: dt
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real, intent(in) :: freq
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character(len=37), intent(in) :: decoded
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integer, intent(in) :: nap
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real, intent(in) :: qual
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end subroutine ft4_decode_callback
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end interface
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contains
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subroutine decode(this,callback,iwave,nQSOProgress,nfqso, &
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nutc,nfa,nfb,ndepth,ncontest,mycall,hiscall)
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use timer_module, only: timer
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use packjt77
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include 'ft4/ft4_params.f90'
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class(ft4_decoder), intent(inout) :: this
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procedure(ft4_decode_callback) :: callback
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parameter (NSS=NSPS/NDOWN)
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parameter (NZZ=18*3456)
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character message*37,msgsent*37,msg0*37
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character c77*77
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character*37 decodes(100)
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character*512 data_dir,fname
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character*17 cdatetime0
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character*12 mycall,hiscall
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character*12 mycall0,hiscall0
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character*6 hhmmss
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character*4 cqstr,cqstr0
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subroutine decode(this,callback,iwave,nQSOProgress,nfqso, &
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nutc,nfa,nfb,ndepth,ncontest,mycall,hiscall)
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use timer_module, only: timer
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use packjt77
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include 'ft4/ft4_params.f90'
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class(ft4_decoder), intent(inout) :: this
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procedure(ft4_decode_callback) :: callback
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parameter (NSS=NSPS/NDOWN)
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parameter (NZZ=18*3456)
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character message*37,msgsent*37,msg0*37
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character c77*77
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character*37 decodes(100)
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character*512 data_dir,fname
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character*17 cdatetime0
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character*12 mycall,hiscall
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character*12 mycall0,hiscall0
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character*6 hhmmss
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character*4 cqstr,cqstr0
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complex cd2(0:NZZ/NDOWN-1) !Complex waveform
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complex cb(0:NZZ/NDOWN-1+NN*NSS)
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complex cd(0:NN*NSS-1) !Complex waveform
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complex ctwk(2*NSS),ctwk2(2*NSS,-16:16)
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complex csymb(NSS)
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complex cs(0:3,NN)
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real s4(0:3,NN)
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complex cd2(0:NZZ/NDOWN-1) !Complex waveform
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complex cb(0:NZZ/NDOWN-1+NN*NSS)
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complex cd(0:NN*NSS-1) !Complex waveform
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complex ctwk(2*NSS),ctwk2(2*NSS,-16:16)
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complex csymb(NSS)
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complex cs(0:3,NN)
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real s4(0:3,NN)
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real bmeta(2*NN),bmetb(2*NN),bmetc(2*NN)
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real a(5)
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real llr(2*ND),llra(2*ND),llrb(2*ND),llrc(2*ND),llrd(2*ND)
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real s2(0:255)
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real candidate(3,100)
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real savg(NH1),sbase(NH1)
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real bmeta(2*NN),bmetb(2*NN),bmetc(2*NN)
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real a(5)
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real dd(NZZ)
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real llr(2*ND),llra(2*ND),llrb(2*ND),llrc(2*ND),llrd(2*ND)
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real s2(0:255)
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real candidate(3,100)
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real savg(NH1),sbase(NH1)
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integer apbits(2*ND)
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integer apmy_ru(28),aphis_fd(28)
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integer icos4a(0:3),icos4b(0:3),icos4c(0:3),icos4d(0:3)
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integer*2 iwave(NZZ) !Raw received data
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integer*1 message77(77),rvec(77),apmask(2*ND),cw(2*ND)
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integer*1 hbits(2*NN)
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integer graymap(0:3)
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integer ip(1)
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integer nappasses(0:5) ! # of decoding passes for QSO States 0-5
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integer naptypes(0:5,4) ! nQSOProgress, decoding pass
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integer mcq(29)
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integer mrrr(19),m73(19),mrr73(19)
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integer apbits(2*ND)
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integer apmy_ru(28),aphis_fd(28)
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integer icos4a(0:3),icos4b(0:3),icos4c(0:3),icos4d(0:3)
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integer*2 iwave(NZZ) !Raw received data
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integer*1 message77(77),rvec(77),apmask(2*ND),cw(2*ND)
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integer*1 hbits(2*NN)
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integer graymap(0:3)
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integer i4tone(103)
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integer ip(1)
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integer nappasses(0:5) ! # of decoding passes for QSO States 0-5
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integer naptypes(0:5,4) ! nQSOProgress, decoding pass
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integer mcq(29)
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integer mrrr(19),m73(19),mrr73(19)
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logical nohiscall,unpk77_success
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logical one(0:255,0:7) ! 256 4-symbol sequences, 8 bits
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logical first, dobigfft
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logical nohiscall,unpk77_success
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logical one(0:255,0:7) ! 256 4-symbol sequences, 8 bits
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logical first, dobigfft
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data icos4a/0,1,3,2/
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data icos4b/1,0,2,3/
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data icos4c/2,3,1,0/
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data icos4d/3,2,0,1/
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data graymap/0,1,3,2/
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data msg0/' '/
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data first/.true./
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data mcq/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0/
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data mrrr/0,1,1,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,1/
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data m73/0,1,1,1,1,1,1,0,1,0,0,1,0,1,0,0,0,0,1/
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data mrr73/0,1,1,1,1,1,1,0,0,1,1,1,0,1,0,1,0,0,1/
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data rvec/0,1,0,0,1,0,1,0,0,1,0,1,1,1,1,0,1,0,0,0,1,0,0,1,1,0,1,1,0, &
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1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1,0,0,1,0,1, &
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0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,1,0,1/
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save fs,dt,tt,txt,twopi,h,one,first,apbits,nappasses,naptypes, &
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mycall0,hiscall0,msg0,cqstr0,ctwk2
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data icos4a/0,1,3,2/
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data icos4b/1,0,2,3/
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data icos4c/2,3,1,0/
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data icos4d/3,2,0,1/
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data graymap/0,1,3,2/
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data msg0/' '/
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data first/.true./
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data mcq/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0/
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data mrrr/0,1,1,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,1/
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data m73/0,1,1,1,1,1,1,0,1,0,0,1,0,1,0,0,0,0,1/
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data mrr73/0,1,1,1,1,1,1,0,0,1,1,1,0,1,0,1,0,0,1/
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data rvec/0,1,0,0,1,0,1,0,0,1,0,1,1,1,1,0,1,0,0,0,1,0,0,1,1,0,1,1,0, &
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1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1,0,0,1,0,1, &
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0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,1,0,1/
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save fs,dt,tt,txt,twopi,h,one,first,apbits,nappasses,naptypes, &
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mycall0,hiscall0,msg0,cqstr0,ctwk2
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this%callback => callback
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hhmmss=cdatetime0(8:13)
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if(first) then
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fs=12000.0/NDOWN !Sample rate after downsampling
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dt=1/fs !Sample interval after downsample (s)
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tt=NSPS*dt !Duration of "itone" symbols (s)
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txt=NZ*dt !Transmission length (s) without ramp up/down
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twopi=8.0*atan(1.0)
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h=1.0
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one=.false.
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do i=0,255
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do j=0,7
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if(iand(i,2**j).ne.0) one(i,j)=.true.
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this%callback => callback
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hhmmss=cdatetime0(8:13)
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if(first) then
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fs=12000.0/NDOWN !Sample rate after downsampling
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dt=1/fs !Sample interval after downsample (s)
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tt=NSPS*dt !Duration of "itone" symbols (s)
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txt=NZ*dt !Transmission length (s) without ramp up/down
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twopi=8.0*atan(1.0)
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h=1.0
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one=.false.
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do i=0,255
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do j=0,7
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if(iand(i,2**j).ne.0) one(i,j)=.true.
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enddo
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enddo
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enddo
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do idf=-16,16
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a=0.
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a(1)=real(idf)
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ctwk=1.
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call twkfreq1(ctwk,2*NSS,fs/2.0,a,ctwk2(:,idf))
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enddo
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do idf=-16,16
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a=0.
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a(1)=real(idf)
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ctwk=1.
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call twkfreq1(ctwk,2*NSS,fs/2.0,a,ctwk2(:,idf))
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enddo
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mrrr=2*mod(mrrr+rvec(59:77),2)-1
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m73=2*mod(m73+rvec(59:77),2)-1
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mrr73=2*mod(mrr73+rvec(59:77),2)-1
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nappasses(0)=2
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nappasses(1)=2
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nappasses(2)=2
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nappasses(3)=2
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nappasses(4)=2
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nappasses(5)=3
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mrrr=2*mod(mrrr+rvec(59:77),2)-1
|
||||
m73=2*mod(m73+rvec(59:77),2)-1
|
||||
mrr73=2*mod(mrr73+rvec(59:77),2)-1
|
||||
nappasses(0)=2
|
||||
nappasses(1)=2
|
||||
nappasses(2)=2
|
||||
nappasses(3)=2
|
||||
nappasses(4)=2
|
||||
nappasses(5)=3
|
||||
|
||||
! iaptype
|
||||
!------------------------
|
||||
@ -133,257 +135,257 @@ contains
|
||||
! 5 MyCall DxCall 73 (77 ap bits)
|
||||
! 6 MyCall DxCall RR73 (77 ap bits)
|
||||
!********
|
||||
naptypes(0,1:4)=(/1,2,0,0/) ! Tx6 selected (CQ)
|
||||
naptypes(1,1:4)=(/2,3,0,0/) ! Tx1
|
||||
naptypes(2,1:4)=(/2,3,0,0/) ! Tx2
|
||||
naptypes(3,1:4)=(/3,6,0,0/) ! Tx3
|
||||
naptypes(4,1:4)=(/3,6,0,0/) ! Tx4
|
||||
naptypes(5,1:4)=(/3,1,2,0/) ! Tx5
|
||||
naptypes(0,1:4)=(/1,2,0,0/) ! Tx6 selected (CQ)
|
||||
naptypes(1,1:4)=(/2,3,0,0/) ! Tx1
|
||||
naptypes(2,1:4)=(/2,3,0,0/) ! Tx2
|
||||
naptypes(3,1:4)=(/3,6,0,0/) ! Tx3
|
||||
naptypes(4,1:4)=(/3,6,0,0/) ! Tx4
|
||||
naptypes(5,1:4)=(/3,1,2,0/) ! Tx5
|
||||
|
||||
mycall0=''
|
||||
hiscall0=''
|
||||
cqstr0=''
|
||||
first=.false.
|
||||
endif
|
||||
|
||||
if(cqstr.ne.cqstr0) then
|
||||
i0=index(cqstr,' ')
|
||||
if(i0.le.1) then
|
||||
message='CQ A1AA AA01'
|
||||
else
|
||||
message='CQ '//cqstr(1:i0-1)//' A1AA AA01'
|
||||
mycall0=''
|
||||
hiscall0=''
|
||||
cqstr0=''
|
||||
first=.false.
|
||||
endif
|
||||
i3=-1
|
||||
n3=-1
|
||||
call pack77(message,i3,n3,c77)
|
||||
call unpack77(c77,1,msgsent,unpk77_success)
|
||||
read(c77,'(29i1)') mcq
|
||||
mcq=2*mod(mcq+rvec(1:29),2)-1
|
||||
cqstr0=cqstr
|
||||
endif
|
||||
|
||||
l1=index(mycall,char(0))
|
||||
if(l1.ne.0) mycall(l1:)=" "
|
||||
l1=index(hiscall,char(0))
|
||||
if(l1.ne.0) hiscall(l1:)=" "
|
||||
if(mycall.ne.mycall0 .or. hiscall.ne.hiscall0) then
|
||||
apbits=0
|
||||
apbits(1)=99
|
||||
apbits(30)=99
|
||||
apmy_ru=0
|
||||
aphis_fd=0
|
||||
|
||||
if(len(trim(mycall)) .lt. 3) go to 10
|
||||
|
||||
nohiscall=.false.
|
||||
hiscall0=hiscall
|
||||
if(len(trim(hiscall0)).lt.3) then
|
||||
hiscall0=mycall ! use mycall for dummy hiscall - mycall won't be hashed.
|
||||
nohiscall=.true.
|
||||
endif
|
||||
message=trim(mycall)//' '//trim(hiscall0)//' RR73'
|
||||
i3=-1
|
||||
n3=-1
|
||||
call pack77(message,i3,n3,c77)
|
||||
call unpack77(c77,1,msgsent,unpk77_success)
|
||||
if(i3.ne.1 .or. (message.ne.msgsent) .or. .not.unpk77_success) go to 10
|
||||
read(c77,'(77i1)') message77
|
||||
apmy_ru=2*mod(message77(1:28)+rvec(2:29),2)-1
|
||||
aphis_fd=2*mod(message77(30:57)+rvec(29:56),2)-1
|
||||
message77=mod(message77+rvec,2)
|
||||
call encode174_91(message77,cw)
|
||||
apbits=2*cw-1
|
||||
if(nohiscall) apbits(30)=99
|
||||
|
||||
10 continue
|
||||
mycall0=mycall
|
||||
hiscall0=hiscall
|
||||
endif
|
||||
candidate=0.0
|
||||
ncand=0
|
||||
syncmin=1.2
|
||||
maxcand=100
|
||||
|
||||
fa=nfa
|
||||
fb=nfb
|
||||
call timer('getcand4',0)
|
||||
call getcandidates4(iwave,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
|
||||
ncand,sbase)
|
||||
call timer('getcand4',1)
|
||||
|
||||
ndecodes=0
|
||||
dobigfft=.true.
|
||||
do icand=1,ncand
|
||||
f0=candidate(1,icand)
|
||||
snr=candidate(3,icand)-1.0
|
||||
call timer('ft4_down',0)
|
||||
call ft4_downsample(iwave,dobigfft,f0,cd2) !Downsample to 32 Sam/Sym
|
||||
call timer('ft4_down',1)
|
||||
if(dobigfft) dobigfft=.false.
|
||||
sum2=sum(cd2*conjg(cd2))/(real(NZZ)/real(NDOWN))
|
||||
if(sum2.gt.0.0) cd2=cd2/sqrt(sum2)
|
||||
! Sample rate is now 12000/16 = 750 samples/second
|
||||
do isync=1,2
|
||||
if(isync.eq.1) then
|
||||
idfmin=-12
|
||||
idfmax=12
|
||||
idfstp=3
|
||||
ibmin=0
|
||||
ibmax=800
|
||||
ibstp=4
|
||||
if(cqstr.ne.cqstr0) then
|
||||
i0=index(cqstr,' ')
|
||||
if(i0.le.1) then
|
||||
message='CQ A1AA AA01'
|
||||
else
|
||||
idfmin=idfbest-4
|
||||
idfmax=idfbest+4
|
||||
idfstp=1
|
||||
ibmin=max(0,ibest-5)
|
||||
ibmax=min(ibest+5,NZZ/NDOWN-1)
|
||||
ibstp=1
|
||||
message='CQ '//cqstr(1:i0-1)//' A1AA AA01'
|
||||
endif
|
||||
ibest=-1
|
||||
smax=-99.
|
||||
idfbest=0
|
||||
call timer('sync4d ',0)
|
||||
do idf=idfmin,idfmax,idfstp
|
||||
do istart=ibmin,ibmax,ibstp
|
||||
call sync4d(cd2,istart,ctwk2(:,idf),1,sync) !Find sync power
|
||||
if(sync.gt.smax) then
|
||||
smax=sync
|
||||
ibest=istart
|
||||
idfbest=idf
|
||||
i3=-1
|
||||
n3=-1
|
||||
call pack77(message,i3,n3,c77)
|
||||
call unpack77(c77,1,msgsent,unpk77_success)
|
||||
read(c77,'(29i1)') mcq
|
||||
mcq=2*mod(mcq+rvec(1:29),2)-1
|
||||
cqstr0=cqstr
|
||||
endif
|
||||
|
||||
l1=index(mycall,char(0))
|
||||
if(l1.ne.0) mycall(l1:)=" "
|
||||
l1=index(hiscall,char(0))
|
||||
if(l1.ne.0) hiscall(l1:)=" "
|
||||
if(mycall.ne.mycall0 .or. hiscall.ne.hiscall0) then
|
||||
apbits=0
|
||||
apbits(1)=99
|
||||
apbits(30)=99
|
||||
apmy_ru=0
|
||||
aphis_fd=0
|
||||
|
||||
if(len(trim(mycall)) .lt. 3) go to 10
|
||||
|
||||
nohiscall=.false.
|
||||
hiscall0=hiscall
|
||||
if(len(trim(hiscall0)).lt.3) then
|
||||
hiscall0=mycall ! use mycall for dummy hiscall - mycall won't be hashed.
|
||||
nohiscall=.true.
|
||||
endif
|
||||
message=trim(mycall)//' '//trim(hiscall0)//' RR73'
|
||||
i3=-1
|
||||
n3=-1
|
||||
call pack77(message,i3,n3,c77)
|
||||
call unpack77(c77,1,msgsent,unpk77_success)
|
||||
if(i3.ne.1 .or. (message.ne.msgsent) .or. .not.unpk77_success) go to 10
|
||||
read(c77,'(77i1)') message77
|
||||
apmy_ru=2*mod(message77(1:28)+rvec(2:29),2)-1
|
||||
aphis_fd=2*mod(message77(30:57)+rvec(29:56),2)-1
|
||||
message77=mod(message77+rvec,2)
|
||||
call encode174_91(message77,cw)
|
||||
apbits=2*cw-1
|
||||
if(nohiscall) apbits(30)=99
|
||||
|
||||
10 continue
|
||||
mycall0=mycall
|
||||
hiscall0=hiscall
|
||||
endif
|
||||
syncmin=1.2
|
||||
maxcand=100
|
||||
ndecodes=0
|
||||
decodes=' '
|
||||
fa=nfa
|
||||
fb=nfb
|
||||
dd=iwave
|
||||
|
||||
do isp = 1,2
|
||||
candidate=0.0
|
||||
ncand=0
|
||||
call timer('getcand4',0)
|
||||
call getcandidates4(dd,fa,fb,syncmin,nfqso,maxcand,savg,candidate, &
|
||||
ncand,sbase)
|
||||
call timer('getcand4',1)
|
||||
dobigfft=.true.
|
||||
do icand=1,ncand
|
||||
f0=candidate(1,icand)
|
||||
snr=candidate(3,icand)-1.0
|
||||
call timer('ft4_down',0)
|
||||
call ft4_downsample(dd,dobigfft,f0,cd2) !Downsample to 32 Sam/Sym
|
||||
call timer('ft4_down',1)
|
||||
if(dobigfft) dobigfft=.false.
|
||||
sum2=sum(cd2*conjg(cd2))/(real(NZZ)/real(NDOWN))
|
||||
if(sum2.gt.0.0) cd2=cd2/sqrt(sum2)
|
||||
! Sample rate is now 12000/16 = 750 samples/second
|
||||
do isync=1,2
|
||||
if(isync.eq.1) then
|
||||
idfmin=-12
|
||||
idfmax=12
|
||||
idfstp=3
|
||||
ibmin=0
|
||||
ibmax=800
|
||||
ibstp=4
|
||||
else
|
||||
idfmin=idfbest-4
|
||||
idfmax=idfbest+4
|
||||
idfstp=1
|
||||
ibmin=max(0,ibest-5)
|
||||
ibmax=min(ibest+5,NZZ/NDOWN-1)
|
||||
ibstp=1
|
||||
endif
|
||||
ibest=-1
|
||||
smax=-99.
|
||||
idfbest=0
|
||||
call timer('sync4d ',0)
|
||||
do idf=idfmin,idfmax,idfstp
|
||||
do istart=ibmin,ibmax,ibstp
|
||||
call sync4d(cd2,istart,ctwk2(:,idf),1,sync) !Find sync power
|
||||
if(sync.gt.smax) then
|
||||
smax=sync
|
||||
ibest=istart
|
||||
idfbest=idf
|
||||
endif
|
||||
enddo
|
||||
enddo
|
||||
call timer('sync4d ',1)
|
||||
enddo
|
||||
enddo
|
||||
call timer('sync4d ',1)
|
||||
enddo
|
||||
f0=f0+real(idfbest)
|
||||
if( f0.le.10.0 .or. f0.ge.4990.0 ) cycle
|
||||
! write(*,3002) smax,ibest/750.0,f0
|
||||
!3002 format('b',3f8.2)
|
||||
call timer('ft4down ',0)
|
||||
call ft4_downsample(iwave,dobigfft,f0,cb) !Final downsample, corrected f0
|
||||
call timer('ft4down ',1)
|
||||
sum2=sum(abs(cb)**2)/(real(NSS)*NN)
|
||||
if(sum2.gt.0.0) cb=cb/sqrt(sum2)
|
||||
cd=cb(ibest:ibest+NN*NSS-1)
|
||||
call timer('four2a ',0)
|
||||
do k=1,NN
|
||||
i1=(k-1)*NSS
|
||||
csymb=cd(i1:i1+NSS-1)
|
||||
call four2a(csymb,NSS,1,-1,1)
|
||||
cs(0:3,k)=csymb(1:4)
|
||||
s4(0:3,k)=abs(csymb(1:4))
|
||||
enddo
|
||||
call timer('four2a ',1)
|
||||
f0=f0+real(idfbest)
|
||||
if( f0.le.10.0 .or. f0.ge.4990.0 ) cycle
|
||||
call timer('ft4down ',0)
|
||||
call ft4_downsample(dd,dobigfft,f0,cb) !Final downsample, corrected f0
|
||||
call timer('ft4down ',1)
|
||||
sum2=sum(abs(cb)**2)/(real(NSS)*NN)
|
||||
if(sum2.gt.0.0) cb=cb/sqrt(sum2)
|
||||
cd=cb(ibest:ibest+NN*NSS-1)
|
||||
call timer('four2a ',0)
|
||||
do k=1,NN
|
||||
i1=(k-1)*NSS
|
||||
csymb=cd(i1:i1+NSS-1)
|
||||
call four2a(csymb,NSS,1,-1,1)
|
||||
cs(0:3,k)=csymb(1:4)
|
||||
s4(0:3,k)=abs(csymb(1:4))
|
||||
enddo
|
||||
call timer('four2a ',1)
|
||||
|
||||
! Sync quality check
|
||||
is1=0
|
||||
is2=0
|
||||
is3=0
|
||||
is4=0
|
||||
do k=1,4
|
||||
ip=maxloc(s4(:,k))
|
||||
if(icos4a(k-1).eq.(ip(1)-1)) is1=is1+1
|
||||
ip=maxloc(s4(:,k+33))
|
||||
if(icos4b(k-1).eq.(ip(1)-1)) is2=is2+1
|
||||
ip=maxloc(s4(:,k+66))
|
||||
if(icos4c(k-1).eq.(ip(1)-1)) is3=is3+1
|
||||
ip=maxloc(s4(:,k+99))
|
||||
if(icos4d(k-1).eq.(ip(1)-1)) is4=is4+1
|
||||
enddo
|
||||
nsync=is1+is2+is3+is4 !Number of correct hard sync symbols, 0-16
|
||||
if(smax .lt. 0.7 .or. nsync .lt. 8) cycle
|
||||
|
||||
do nseq=1,3 !Try coherent sequences of 1, 2, and 4 symbols
|
||||
if(nseq.eq.1) nsym=1
|
||||
if(nseq.eq.2) nsym=2
|
||||
if(nseq.eq.3) nsym=4
|
||||
nt=2**(2*nsym)
|
||||
do ks=1,NN-nsym+1,nsym !87+16=103 symbols.
|
||||
amax=-1.0
|
||||
do i=0,nt-1
|
||||
i1=i/64
|
||||
i2=iand(i,63)/16
|
||||
i3=iand(i,15)/4
|
||||
i4=iand(i,3)
|
||||
if(nsym.eq.1) then
|
||||
s2(i)=abs(cs(graymap(i4),ks))
|
||||
elseif(nsym.eq.2) then
|
||||
s2(i)=abs(cs(graymap(i3),ks)+cs(graymap(i4),ks+1))
|
||||
elseif(nsym.eq.4) then
|
||||
s2(i)=abs(cs(graymap(i1),ks ) + &
|
||||
cs(graymap(i2),ks+1) + &
|
||||
cs(graymap(i3),ks+2) + &
|
||||
cs(graymap(i4),ks+3) &
|
||||
)
|
||||
else
|
||||
print*,"Error - nsym must be 1, 2, or 4."
|
||||
endif
|
||||
is1=0
|
||||
is2=0
|
||||
is3=0
|
||||
is4=0
|
||||
do k=1,4
|
||||
ip=maxloc(s4(:,k))
|
||||
if(icos4a(k-1).eq.(ip(1)-1)) is1=is1+1
|
||||
ip=maxloc(s4(:,k+33))
|
||||
if(icos4b(k-1).eq.(ip(1)-1)) is2=is2+1
|
||||
ip=maxloc(s4(:,k+66))
|
||||
if(icos4c(k-1).eq.(ip(1)-1)) is3=is3+1
|
||||
ip=maxloc(s4(:,k+99))
|
||||
if(icos4d(k-1).eq.(ip(1)-1)) is4=is4+1
|
||||
enddo
|
||||
ipt=1+(ks-1)*2
|
||||
if(nsym.eq.1) ibmax=1
|
||||
if(nsym.eq.2) ibmax=3
|
||||
if(nsym.eq.4) ibmax=7
|
||||
do ib=0,ibmax
|
||||
bm=maxval(s2(0:nt-1),one(0:nt-1,ibmax-ib)) - &
|
||||
maxval(s2(0:nt-1),.not.one(0:nt-1,ibmax-ib))
|
||||
if(ipt+ib.gt.2*NN) cycle
|
||||
if(nsym.eq.1) then
|
||||
bmeta(ipt+ib)=bm
|
||||
elseif(nsym.eq.2) then
|
||||
bmetb(ipt+ib)=bm
|
||||
elseif(nsym.eq.4) then
|
||||
bmetc(ipt+ib)=bm
|
||||
endif
|
||||
nsync=is1+is2+is3+is4 !Number of correct hard sync symbols, 0-16
|
||||
if(smax .lt. 0.7 .or. nsync .lt. 8) cycle
|
||||
|
||||
do nseq=1,3 !Try coherent sequences of 1, 2, and 4 symbols
|
||||
if(nseq.eq.1) nsym=1
|
||||
if(nseq.eq.2) nsym=2
|
||||
if(nseq.eq.3) nsym=4
|
||||
nt=2**(2*nsym)
|
||||
do ks=1,NN-nsym+1,nsym !87+16=103 symbols.
|
||||
amax=-1.0
|
||||
do i=0,nt-1
|
||||
i1=i/64
|
||||
i2=iand(i,63)/16
|
||||
i3=iand(i,15)/4
|
||||
i4=iand(i,3)
|
||||
if(nsym.eq.1) then
|
||||
s2(i)=abs(cs(graymap(i4),ks))
|
||||
elseif(nsym.eq.2) then
|
||||
s2(i)=abs(cs(graymap(i3),ks)+cs(graymap(i4),ks+1))
|
||||
elseif(nsym.eq.4) then
|
||||
s2(i)=abs(cs(graymap(i1),ks ) + &
|
||||
cs(graymap(i2),ks+1) + &
|
||||
cs(graymap(i3),ks+2) + &
|
||||
cs(graymap(i4),ks+3) &
|
||||
)
|
||||
else
|
||||
print*,"Error - nsym must be 1, 2, or 4."
|
||||
endif
|
||||
enddo
|
||||
ipt=1+(ks-1)*2
|
||||
if(nsym.eq.1) ibmax=1
|
||||
if(nsym.eq.2) ibmax=3
|
||||
if(nsym.eq.4) ibmax=7
|
||||
do ib=0,ibmax
|
||||
bm=maxval(s2(0:nt-1),one(0:nt-1,ibmax-ib)) - &
|
||||
maxval(s2(0:nt-1),.not.one(0:nt-1,ibmax-ib))
|
||||
if(ipt+ib.gt.2*NN) cycle
|
||||
if(nsym.eq.1) then
|
||||
bmeta(ipt+ib)=bm
|
||||
elseif(nsym.eq.2) then
|
||||
bmetb(ipt+ib)=bm
|
||||
elseif(nsym.eq.4) then
|
||||
bmetc(ipt+ib)=bm
|
||||
endif
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
enddo
|
||||
|
||||
bmetb(205:206)=bmeta(205:206)
|
||||
bmetc(201:204)=bmetb(201:204)
|
||||
bmetc(205:206)=bmeta(205:206)
|
||||
bmetb(205:206)=bmeta(205:206)
|
||||
bmetc(201:204)=bmetb(201:204)
|
||||
bmetc(205:206)=bmeta(205:206)
|
||||
|
||||
call normalizebmet(bmeta,2*NN)
|
||||
call normalizebmet(bmetb,2*NN)
|
||||
call normalizebmet(bmetc,2*NN)
|
||||
call normalizebmet(bmeta,2*NN)
|
||||
call normalizebmet(bmetb,2*NN)
|
||||
call normalizebmet(bmetc,2*NN)
|
||||
|
||||
hbits=0
|
||||
where(bmeta.ge.0) hbits=1
|
||||
ns1=count(hbits( 1: 8).eq.(/0,0,0,1,1,0,1,1/))
|
||||
ns2=count(hbits( 67: 74).eq.(/0,1,0,0,1,1,1,0/))
|
||||
ns3=count(hbits(133:140).eq.(/1,1,1,0,0,1,0,0/))
|
||||
ns4=count(hbits(199:206).eq.(/1,0,1,1,0,0,0,1/))
|
||||
nsync_qual=ns1+ns2+ns3+ns4
|
||||
if(nsync_qual.lt. 20) cycle
|
||||
hbits=0
|
||||
where(bmeta.ge.0) hbits=1
|
||||
ns1=count(hbits( 1: 8).eq.(/0,0,0,1,1,0,1,1/))
|
||||
ns2=count(hbits( 67: 74).eq.(/0,1,0,0,1,1,1,0/))
|
||||
ns3=count(hbits(133:140).eq.(/1,1,1,0,0,1,0,0/))
|
||||
ns4=count(hbits(199:206).eq.(/1,0,1,1,0,0,0,1/))
|
||||
nsync_qual=ns1+ns2+ns3+ns4
|
||||
if(nsync_qual.lt. 20) cycle
|
||||
|
||||
scalefac=2.83
|
||||
llra( 1: 58)=bmeta( 9: 66)
|
||||
llra( 59:116)=bmeta( 75:132)
|
||||
llra(117:174)=bmeta(141:198)
|
||||
llra=scalefac*llra
|
||||
llrb( 1: 58)=bmetb( 9: 66)
|
||||
llrb( 59:116)=bmetb( 75:132)
|
||||
llrb(117:174)=bmetb(141:198)
|
||||
llrb=scalefac*llrb
|
||||
llrc( 1: 58)=bmetc( 9: 66)
|
||||
llrc( 59:116)=bmetc( 75:132)
|
||||
llrc(117:174)=bmetc(141:198)
|
||||
llrc=scalefac*llrc
|
||||
scalefac=2.83
|
||||
llra( 1: 58)=bmeta( 9: 66)
|
||||
llra( 59:116)=bmeta( 75:132)
|
||||
llra(117:174)=bmeta(141:198)
|
||||
llra=scalefac*llra
|
||||
llrb( 1: 58)=bmetb( 9: 66)
|
||||
llrb( 59:116)=bmetb( 75:132)
|
||||
llrb(117:174)=bmetb(141:198)
|
||||
llrb=scalefac*llrb
|
||||
llrc( 1: 58)=bmetc( 9: 66)
|
||||
llrc( 59:116)=bmetc( 75:132)
|
||||
llrc(117:174)=bmetc(141:198)
|
||||
llrc=scalefac*llrc
|
||||
|
||||
apmag=maxval(abs(llra))*1.1
|
||||
npasses=3+nappasses(nQSOProgress)
|
||||
if(ncontest.ge.5) npasses=3 ! Don't support Fox and Hound
|
||||
do ipass=1,npasses
|
||||
if(ipass.eq.1) llr=llra
|
||||
if(ipass.eq.2) llr=llrb
|
||||
if(ipass.eq.3) llr=llrc
|
||||
if(ipass.le.3) then
|
||||
apmask=0
|
||||
iaptype=0
|
||||
endif
|
||||
apmag=maxval(abs(llra))*1.1
|
||||
npasses=3+nappasses(nQSOProgress)
|
||||
if(ncontest.ge.5) npasses=3 ! Don't support Fox and Hound
|
||||
do ipass=1,npasses
|
||||
if(ipass.eq.1) llr=llra
|
||||
if(ipass.eq.2) llr=llrb
|
||||
if(ipass.eq.3) llr=llrc
|
||||
if(ipass.le.3) then
|
||||
apmask=0
|
||||
iaptype=0
|
||||
endif
|
||||
|
||||
if(ipass .gt. 3) then
|
||||
llrd=llrc
|
||||
iaptype=naptypes(nQSOProgress,ipass-3)
|
||||
if(ipass .gt. 3) then
|
||||
llrd=llrc
|
||||
iaptype=naptypes(nQSOProgress,ipass-3)
|
||||
|
||||
! ncontest=0 : NONE
|
||||
! 1 : NA_VHF
|
||||
@ -394,94 +396,99 @@ contains
|
||||
! 6 : HOUND
|
||||
!
|
||||
! Conditions that cause us to bail out of AP decoding
|
||||
napwid=50
|
||||
if(ncontest.le.4 .and. iaptype.ge.3 .and. (abs(f0-nfqso).gt.napwid) ) cycle
|
||||
if(iaptype.ge.2 .and. apbits(1).gt.1) cycle ! No, or nonstandard, mycall
|
||||
if(iaptype.ge.3 .and. apbits(30).gt.1) cycle ! No, or nonstandard, dxcall
|
||||
napwid=50
|
||||
if(ncontest.le.4 .and. iaptype.ge.3 .and. (abs(f0-nfqso).gt.napwid) ) cycle
|
||||
if(iaptype.ge.2 .and. apbits(1).gt.1) cycle ! No, or nonstandard, mycall
|
||||
if(iaptype.ge.3 .and. apbits(30).gt.1) cycle ! No, or nonstandard, dxcall
|
||||
|
||||
if(iaptype.eq.1) then ! CQ or CQ TEST or CQ FD or CQ RU or CQ SCC
|
||||
apmask=0
|
||||
apmask(1:29)=1
|
||||
llrd(1:29)=apmag*mcq(1:29)
|
||||
endif
|
||||
if(iaptype.eq.1) then ! CQ or CQ TEST or CQ FD or CQ RU or CQ SCC
|
||||
apmask=0
|
||||
apmask(1:29)=1
|
||||
llrd(1:29)=apmag*mcq(1:29)
|
||||
endif
|
||||
|
||||
if(iaptype.eq.2) then ! MyCall,???,???
|
||||
apmask=0
|
||||
if(ncontest.eq.0.or.ncontest.eq.1) then
|
||||
apmask(1:29)=1
|
||||
llrd(1:29)=apmag*apbits(1:29)
|
||||
else if(ncontest.eq.2) then
|
||||
apmask(1:28)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
else if(ncontest.eq.3) then
|
||||
apmask(1:28)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
else if(ncontest.eq.4) then
|
||||
apmask(2:29)=1
|
||||
llrd(2:29)=apmag*apmy_ru(1:28)
|
||||
if(iaptype.eq.2) then ! MyCall,???,???
|
||||
apmask=0
|
||||
if(ncontest.eq.0.or.ncontest.eq.1) then
|
||||
apmask(1:29)=1
|
||||
llrd(1:29)=apmag*apbits(1:29)
|
||||
else if(ncontest.eq.2) then
|
||||
apmask(1:28)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
else if(ncontest.eq.3) then
|
||||
apmask(1:28)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
else if(ncontest.eq.4) then
|
||||
apmask(2:29)=1
|
||||
llrd(2:29)=apmag*apmy_ru(1:28)
|
||||
endif
|
||||
endif
|
||||
|
||||
if(iaptype.eq.3) then ! MyCall,DxCall,???
|
||||
apmask=0
|
||||
if(ncontest.eq.0.or.ncontest.eq.1.or.ncontest.eq.2) then
|
||||
apmask(1:58)=1
|
||||
llrd(1:58)=apmag*apbits(1:58)
|
||||
else if(ncontest.eq.3) then ! Field Day
|
||||
apmask(1:56)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
llrd(29:56)=apmag*aphis_fd(1:28)
|
||||
else if(ncontest.eq.4) then ! RTTY RU
|
||||
apmask(2:57)=1
|
||||
llrd(2:29)=apmag*apmy_ru(1:28)
|
||||
llrd(30:57)=apmag*apbits(30:57)
|
||||
endif
|
||||
endif
|
||||
|
||||
if(iaptype.eq.4 .or. iaptype.eq.5 .or. iaptype.eq.6) then
|
||||
apmask=0
|
||||
if(ncontest.le.4) then
|
||||
apmask(1:91)=1 ! mycall, hiscall, RRR|73|RR73
|
||||
if(iaptype.eq.6) llrd(1:91)=apmag*apbits(1:91)
|
||||
endif
|
||||
endif
|
||||
|
||||
llr=llrd
|
||||
endif
|
||||
endif
|
||||
|
||||
if(iaptype.eq.3) then ! MyCall,DxCall,???
|
||||
apmask=0
|
||||
if(ncontest.eq.0.or.ncontest.eq.1.or.ncontest.eq.2) then
|
||||
apmask(1:58)=1
|
||||
llrd(1:58)=apmag*apbits(1:58)
|
||||
else if(ncontest.eq.3) then ! Field Day
|
||||
apmask(1:56)=1
|
||||
llrd(1:28)=apmag*apbits(1:28)
|
||||
llrd(29:56)=apmag*aphis_fd(1:28)
|
||||
else if(ncontest.eq.4) then ! RTTY RU
|
||||
apmask(2:57)=1
|
||||
llrd(2:29)=apmag*apmy_ru(1:28)
|
||||
llrd(30:57)=apmag*apbits(30:57)
|
||||
max_iterations=40
|
||||
message77=0
|
||||
call timer('bpdec174',0)
|
||||
call bpdecode174_91(llr,apmask,max_iterations,message77, &
|
||||
cw,nharderror,niterations)
|
||||
call timer('bpdec174',1)
|
||||
if(sum(message77).eq.0) cycle
|
||||
if( nharderror.ge.0 ) then
|
||||
message77=mod(message77+rvec,2) ! remove rvec scrambling
|
||||
write(c77,'(77i1)') message77(1:77)
|
||||
call unpack77(c77,1,message,unpk77_success)
|
||||
if(unpk77_success) then
|
||||
call get_ft4_tones_from_77bits(message77,i4tone)
|
||||
dt=real(ibest)/750.0
|
||||
call subtractft4(dd,i4tone,f0,dt)
|
||||
endif
|
||||
idupe=0
|
||||
do i=1,ndecodes
|
||||
if(decodes(i).eq.message) idupe=1
|
||||
enddo
|
||||
if(ibest.le.10 .and. message.eq.msg0) idupe=1 !Already decoded
|
||||
if(idupe.eq.1) exit
|
||||
ndecodes=ndecodes+1
|
||||
decodes(ndecodes)=message
|
||||
if(snr.gt.0.0) then
|
||||
xsnr=10*log10(snr)-14.0
|
||||
else
|
||||
xsnr=-20.0
|
||||
endif
|
||||
nsnr=nint(max(-20.0,xsnr))
|
||||
xdt=ibest/750.0 - 0.5
|
||||
call this%callback(sync,nsnr,xdt,f0,message,iaptype,qual)
|
||||
if(ibest.ge.ibmax-15) msg0=message !Possible dupe candidate
|
||||
exit
|
||||
endif
|
||||
endif
|
||||
|
||||
if(iaptype.eq.4 .or. iaptype.eq.5 .or. iaptype.eq.6) then
|
||||
apmask=0
|
||||
if(ncontest.le.4) then
|
||||
apmask(1:91)=1 ! mycall, hiscall, RRR|73|RR73
|
||||
if(iaptype.eq.6) llrd(1:91)=apmag*apbits(1:91)
|
||||
endif
|
||||
endif
|
||||
|
||||
llr=llrd
|
||||
endif
|
||||
max_iterations=40
|
||||
message77=0
|
||||
call timer('bpdec174',0)
|
||||
call bpdecode174_91(llr,apmask,max_iterations,message77, &
|
||||
cw,nharderror,niterations)
|
||||
call timer('bpdec174',1)
|
||||
if(sum(message77).eq.0) cycle
|
||||
if( nharderror.ge.0 ) then
|
||||
message77=mod(message77+rvec,2) ! remove rvec scrambling
|
||||
write(c77,'(77i1)') message77(1:77)
|
||||
call unpack77(c77,1,message,unpk77_success)
|
||||
idupe=0
|
||||
do i=1,ndecodes
|
||||
if(decodes(i).eq.message) idupe=1
|
||||
enddo
|
||||
if(ibest.le.10 .and. message.eq.msg0) idupe=1 !Already decoded
|
||||
if(idupe.eq.1) exit
|
||||
ndecodes=ndecodes+1
|
||||
decodes(ndecodes)=message
|
||||
if(snr.gt.0.0) then
|
||||
xsnr=10*log10(snr)-14.0
|
||||
else
|
||||
xsnr=-20.0
|
||||
endif
|
||||
nsnr=nint(max(-20.0,xsnr))
|
||||
xdt=ibest/750.0 - 0.5
|
||||
call this%callback(sync,nsnr,xdt,f0,message,iaptype,qual)
|
||||
if(ibest.ge.ibmax-15) msg0=message !Possible dupe candidate
|
||||
exit
|
||||
endif
|
||||
enddo !Sequence estimation
|
||||
enddo !Candidate list
|
||||
|
||||
return
|
||||
end subroutine decode
|
||||
enddo !Sequence estimation
|
||||
enddo !Candidate list
|
||||
enddo !Subtraction loop
|
||||
return
|
||||
end subroutine decode
|
||||
|
||||
end module ft4_decode
|
||||
|
||||
@ -396,7 +396,7 @@ subroutine ft8b(dd0,newdat,nQSOProgress,nfqso,nftx,ndepth,lapon,lapcqonly, &
|
||||
cycle
|
||||
endif
|
||||
nbadcrc=0 ! If we get this far: valid codeword, valid (i3,n3), nonquirky message.
|
||||
call get_tones_from_77bits(message77,itone)
|
||||
call get_ft8_tones_from_77bits(message77,itone)
|
||||
if(lsubtract) call subtractft8(dd0,itone,f1,xdt)
|
||||
xsig=0.0
|
||||
xnoi=0.0
|
||||
|
||||
@ -25,7 +25,7 @@ subroutine genft8(msg,i3,n3,msgsent,msgbits,itone)
|
||||
msgsent='*** bad message *** '
|
||||
go to 900
|
||||
|
||||
entry get_tones_from_77bits(msgbits,itone)
|
||||
entry get_ft8_tones_from_77bits(msgbits,itone)
|
||||
|
||||
2 call encode174_91(msgbits,codeword) !Encode the test message
|
||||
|
||||
|
||||
@ -99,7 +99,7 @@ extern "C" {
|
||||
void genft8_(char* msg, int* i3, int* n3, char* msgsent, char ft8msgbits[],
|
||||
int itone[], fortran_charlen_t, fortran_charlen_t);
|
||||
|
||||
void genft4_(char* msg, int* ichk, char* msgsent, int itone[],
|
||||
void genft4_(char* msg, int* ichk, char* msgsent, char ft4msgbits[], int itone[],
|
||||
fortran_charlen_t, fortran_charlen_t);
|
||||
|
||||
void gen_ft8wave_(int itone[], int* nsym, int* nsps, float* bt, float* fsample, float* f0,
|
||||
@ -3739,7 +3739,9 @@ void MainWindow::guiUpdate()
|
||||
}
|
||||
if(m_modeTx=="FT4") {
|
||||
int ichk=0;
|
||||
genft4_(message, &ichk, msgsent, const_cast<int *>(itone), 37, 37);
|
||||
char ft4msgbits[77];
|
||||
genft4_(message, &ichk, msgsent, const_cast<char *> (ft4msgbits),
|
||||
const_cast<int *>(itone), 37, 37);
|
||||
int nsym=103;
|
||||
int nsps=4*512;
|
||||
float fsample=48000.0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user