Merged master 8748
This commit is contained in:
Jordan Sherer
@@ -0,0 +1,109 @@
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program wsprcpmsim
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! Generate simulated data for a 2-minute "WSPR-LF" mode. Output is saved
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! to a *.c2 or *.wav file.
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use wavhdr
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include 'wsprcpm_params.f90' !Set various constants
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parameter (NMAX=120*12000)
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type(hdr) hwav !Header for .wav file
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character arg*12,fname*16
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character msg*22,msgsent*22
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complex c0(0:NMAX/NDOWN-1)
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complex c(0:NMAX/NDOWN-1)
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real*8 fMHz
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integer itone(NN)
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integer*2 iwave(NMAX) !Generated full-length waveform
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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: wsprmsksim "message" f0 DT fsp del nwav nfiles snr'
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print*,'Example: wsprmsksim "K1ABC FN42 30" 50 0.0 0.1 1.0 1 10 -33'
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go to 999
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endif
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call getarg(1,msg) !Message to be transmitted
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call getarg(2,arg)
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read(arg,*) f0 !Freq relative to WSPR-band center (Hz)
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call getarg(3,arg)
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read(arg,*) xdt !Time offset from nominal (s)
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call getarg(4,arg)
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read(arg,*) fspread !Watterson frequency spread (Hz)
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call getarg(5,arg)
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read(arg,*) delay !Watterson delay (ms)
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call getarg(6,arg)
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read(arg,*) nwav !1 for *.wav file, 0 for *.c2 file
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call getarg(7,arg)
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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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twopi=8.0*atan(1.0)
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fs=12000.0/NDOWN !
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dt=1.0/fs !Sample interval (s)
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tt=NSPS*dt !Duration of "itone" symbols (s)
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baud=1.0/tt !Keying rate for "itone" symbols (baud)
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txt=NZ*dt !Transmission length (s)
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bandwidth_ratio=2500.0/(fs/2.0)
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sig=sqrt(bandwidth_ratio) * 10.0**(0.05*snrdb)
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if(snrdb.gt.90.0) sig=1.0
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txt=NN*NSPS0/12000.0
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call genwsprcpm(msg,msgsent,itone) !Encode the message, get itone
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write(*,1000) f0,xdt,txt,snrdb,fspread,delay,nfiles,msgsent
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1000 format('f0:',f9.3,' DT:',f6.2,' txt:',f6.1,' SNR:',f6.1, &
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' fspread:',f6.1,' delay:',f6.1,' nfiles:',i3,2x,a22)
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h=1.00
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c0=0.
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k=-1 + nint(xdt/dt)
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do j=1,NN
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dp=twopi*(f0+itone(j)*(h/2.0)*baud)*dt
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do i=1,NSPS
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k=k+1
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phi=mod(phi+dp,twopi)
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if(k.ge.0 .and. k.lt.NMAX/NDOWN) c0(k)=cmplx(cos(phi),sin(phi))
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enddo
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enddo
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call sgran()
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do ifile=1,nfiles
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c=c0
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if(nwav.eq.0) then
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if( fspread .ne. 0.0 .or. delay .ne. 0.0 ) then
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call watterson(c,NMAX/NDOWN,fs,delay,fspread)
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endif
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!do i=0,NMAX/NDOWN-1
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!write(23,*) i,real(c(i)),imag(c(i))
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!enddo
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c=c*sig
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if(snrdb.lt.90) then
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do i=0,NMAX/NDOWN-1 !Add gaussian noise at specified SNR
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xnoise=gran()
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ynoise=gran()
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c(i)=c(i) + cmplx(xnoise,ynoise)
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enddo
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endif
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write(fname,1100) ifile
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1100 format('000000_',i4.4,'.c2')
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open(10,file=fname,status='unknown',access='stream')
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fMHz=10.1387d0
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nmin=2
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write(10) fname,nmin,fMHz,c !Save to *.c2 file
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close(10)
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!do i=0,NMAX/NDOWN-1
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!write(57,*) i,real(c(i)),imag(c(i))
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!enddo
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else
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call wsprcpm_wav(baud,xdt,h,f0,itone,snrdb,iwave)
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hwav=default_header(12000,NMAX)
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write(fname,1102) ifile
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1102 format('000000_',i4.4,'.wav')
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open(10,file=fname,status='unknown',access='stream')
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write(10) hwav,iwave !Save to *.wav file
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close(10)
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endif
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write(*,1110) ifile,xdt,f0,snrdb,fname
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1110 format(i4,f7.2,f8.2,f7.1,2x,a16)
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enddo
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999 end program wsprcpmsim
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@@ -1,420 +0,0 @@
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subroutine multimode_decoder(ss,id2,params,nfsample)
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!$ use omp_lib
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use prog_args
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use timer_module, only: timer
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use jt4_decode
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use jt65_decode
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use jt9_decode
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use ft8_decode
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include 'jt9com.f90'
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include 'timer_common.inc'
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type, extends(jt4_decoder) :: counting_jt4_decoder
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integer :: decoded
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end type counting_jt4_decoder
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type, extends(jt65_decoder) :: counting_jt65_decoder
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integer :: decoded
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end type counting_jt65_decoder
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type, extends(jt9_decoder) :: counting_jt9_decoder
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integer :: decoded
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end type counting_jt9_decoder
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type, extends(ft8_decoder) :: counting_ft8_decoder
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integer :: decoded
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end type counting_ft8_decoder
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real ss(184,NSMAX)
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logical baddata,newdat65,newdat9,single_decode,bVHF,bad0
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integer*2 id2(NTMAX*12000)
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type(params_block) :: params
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real*4 dd(NTMAX*12000)
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save
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type(counting_jt4_decoder) :: my_jt4
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type(counting_jt65_decoder) :: my_jt65
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type(counting_jt9_decoder) :: my_jt9
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type(counting_ft8_decoder) :: my_ft8
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! initialize decode counts
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my_jt4%decoded = 0
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my_jt65%decoded = 0
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my_jt9%decoded = 0
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my_ft8%decoded = 0
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single_decode=iand(params%nexp_decode,32).ne.0
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bVHF=iand(params%nexp_decode,64).ne.0
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if(mod(params%nranera,2).eq.0) ntrials=10**(params%nranera/2)
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if(mod(params%nranera,2).eq.1) ntrials=3*10**(params%nranera/2)
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if(params%nranera.eq.0) ntrials=0
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nfail=0
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10 if (params%nagain) then
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open(13,file=trim(temp_dir)//'/decoded.txt',status='unknown', &
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position='append',iostat=ios)
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else
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open(13,file=trim(temp_dir)//'/decoded.txt',status='unknown', &
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iostat=ios)
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end if
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if(ios.ne.0) then
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nfail=nfail+1
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if(nfail.le.3) then
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call sleep_msec(100)
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go to 10
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endif
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endif
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if(params%nmode.eq.8) then
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! We're in FT8 mode
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call timer('decft8 ',0)
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call my_ft8%decode(ft8_decoded,id2,params%nfqso, &
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newdat9,params%nutc,params%nfa, &
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params%nfb,logical(params%nagain), &
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params%ndepth,params%nsubmode)
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call timer('decft8 ',1)
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go to 800
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endif
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rms=sqrt(dot_product(float(id2(300000:310000)), &
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float(id2(300000:310000)))/10000.0)
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if(rms.lt.2.0) go to 800
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! Zap data at start that might come from T/R switching transient?
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nadd=100
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k=0
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bad0=.false.
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do i=1,240
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sq=0.
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do n=1,nadd
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k=k+1
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sq=sq + float(id2(k))**2
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enddo
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rms=sqrt(sq/nadd)
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if(rms.gt.10000.0) then
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bad0=.true.
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kbad=k
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rmsbad=rms
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endif
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enddo
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if(bad0) then
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nz=min(NTMAX*12000,kbad+100)
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! id2(1:nz)=0 ! temporarily disabled as it can breaak the JT9 decoder, maybe others
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endif
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if(params%nmode.eq.4 .or. params%nmode.eq.65) open(14,file=trim(temp_dir)// &
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'/avemsg.txt',status='unknown')
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if(params%nmode.eq.164) open(17,file=trim(temp_dir)//'/red.dat', &
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status='unknown')
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if(params%nmode.eq.4) then
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jz=52*nfsample
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if(params%newdat) then
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if(nfsample.eq.12000) call wav11(id2,jz,dd)
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if(nfsample.eq.11025) dd(1:jz)=id2(1:jz)
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endif
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call my_jt4%decode(jt4_decoded,dd,jz,params%nutc,params%nfqso, &
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params%ntol,params%emedelay,params%dttol,logical(params%nagain), &
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params%ndepth,logical(params%nclearave),params%minsync, &
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params%minw,params%nsubmode,params%mycall,params%hiscall, &
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params%hisgrid,params%nlist,params%listutc,jt4_average)
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go to 800
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endif
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npts65=52*12000
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if(params%nmode.eq.164) npts65=54*12000
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if(baddata(id2,npts65)) then
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nsynced=0
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ndecoded=0
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go to 800
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endif
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ntol65=params%ntol !### is this OK? ###
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newdat65=params%newdat
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newdat9=params%newdat
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!$call omp_set_dynamic(.true.)
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!$omp parallel sections num_threads(2) copyin(/timer_private/) shared(ndecoded) if(.true.) !iif() needed on Mac
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!$omp section
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if(params%nmode.eq.65 .or. params%nmode.eq.164 .or. &
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(params%nmode.eq.(65+9) .and. params%ntxmode.eq.65)) then
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! We're in JT65 or QRA64 mode, or should do JT65 first
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if(newdat65) dd(1:npts65)=id2(1:npts65)
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nf1=params%nfa
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nf2=params%nfb
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call timer('jt65a ',0)
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call my_jt65%decode(jt65_decoded,dd,npts65,newdat65,params%nutc, &
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nf1,nf2,params%nfqso,ntol65,params%nsubmode,params%minsync, &
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logical(params%nagain),params%n2pass,logical(params%nrobust), &
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ntrials,params%naggressive,params%ndepth,params%emedelay, &
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logical(params%nclearave),params%mycall,params%hiscall, &
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params%hisgrid,params%nexp_decode)
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call timer('jt65a ',1)
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else if(params%nmode.eq.9 .or. (params%nmode.eq.(65+9) .and. params%ntxmode.eq.9)) then
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! We're in JT9 mode, or should do JT9 first
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call timer('decjt9 ',0)
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call my_jt9%decode(jt9_decoded,ss,id2,params%nfqso, &
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newdat9,params%npts8,params%nfa,params%nfsplit,params%nfb, &
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params%ntol,params%nzhsym,logical(params%nagain),params%ndepth, &
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params%nmode,params%nsubmode,params%nexp_decode)
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call timer('decjt9 ',1)
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endif
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!$omp section
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if(params%nmode.eq.(65+9)) then !Do the other mode (we're in dual mode)
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if (params%ntxmode.eq.9) then
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if(newdat65) dd(1:npts65)=id2(1:npts65)
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nf1=params%nfa
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nf2=params%nfb
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call timer('jt65a ',0)
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call my_jt65%decode(jt65_decoded,dd,npts65,newdat65,params%nutc, &
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nf1,nf2,params%nfqso,ntol65,params%nsubmode,params%minsync, &
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logical(params%nagain),params%n2pass,logical(params%nrobust), &
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ntrials,params%naggressive,params%ndepth,params%emedelay, &
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logical(params%nclearave),params%mycall,params%hiscall, &
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params%hisgrid,params%nexp_decode)
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call timer('jt65a ',1)
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else
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call timer('decjt9 ',0)
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call my_jt9%decode(jt9_decoded,ss,id2,params%nfqso, &
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newdat9,params%npts8,params%nfa,params%nfsplit,params%nfb, &
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params%ntol,params%nzhsym,logical(params%nagain), &
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params%ndepth,params%nmode,params%nsubmode,params%nexp_decode)
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call timer('decjt9 ',1)
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end if
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endif
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!$omp end parallel sections
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! JT65 is not yet producing info for nsynced, ndecoded.
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800 ndecoded = my_jt4%decoded + my_jt65%decoded + my_jt9%decoded + my_ft8%decoded
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write(*,1010) nsynced,ndecoded
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1010 format('<DecodeFinished>',2i4)
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call flush(6)
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close(13)
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if(params%nmode.eq.4 .or. params%nmode.eq.65) close(14)
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return
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contains
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subroutine jt4_decoded(this,snr,dt,freq,have_sync,sync,is_deep, &
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decoded0,qual,ich,is_average,ave)
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implicit none
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class(jt4_decoder), intent(inout) :: this
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integer, intent(in) :: snr
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real, intent(in) :: dt
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integer, intent(in) :: freq
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logical, intent(in) :: have_sync
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logical, intent(in) :: is_deep
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character(len=1), intent(in) :: sync
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character(len=22), intent(in) :: decoded0
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real, intent(in) :: qual
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integer, intent(in) :: ich
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logical, intent(in) :: is_average
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integer, intent(in) :: ave
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character*22 decoded
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character*3 cflags
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if(ich.eq.-99) stop !Silence compiler warning
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if (have_sync) then
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decoded=decoded0
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cflags=' '
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if(decoded.ne.' ') cflags='f '
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if(is_deep) then
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cflags(1:2)='d1'
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write(cflags(3:3),'(i1)') min(int(qual),9)
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if(qual.ge.10.0) cflags(3:3)='*'
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if(qual.lt.3.0) decoded(22:22)='?'
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endif
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if(is_average) then
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write(cflags(2:2),'(i1)') min(ave,9)
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if(ave.ge.10) cflags(2:2)='*'
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endif
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write(*,1000) params%nutc,snr,dt,freq,sync,decoded,cflags
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1000 format(i4.4,i4,f5.1,i5,1x,'$',a1,1x,a22,1x,a3)
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else
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write(*,1000) params%nutc,snr,dt,freq
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end if
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select type(this)
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type is (counting_jt4_decoder)
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this%decoded = this%decoded + 1
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end select
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end subroutine jt4_decoded
|
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|
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subroutine jt4_average (this, used, utc, sync, dt, freq, flip)
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implicit none
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class(jt4_decoder), intent(inout) :: this
|
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logical, intent(in) :: used
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integer, intent(in) :: utc
|
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real, intent(in) :: sync
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real, intent(in) :: dt
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integer, intent(in) :: freq
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logical, intent(in) :: flip
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character(len=1) :: cused, csync
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cused = '.'
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csync = '*'
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if (used) cused = '$'
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if (flip) csync = '$'
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write(14,1000) cused,utc,sync,dt,freq,csync
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1000 format(a1,i5.4,f6.1,f6.2,i6,1x,a1)
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end subroutine jt4_average
|
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|
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subroutine jt65_decoded(this,sync,snr,dt,freq,drift,nflip,width, &
|
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decoded0,ft,qual,nsmo,nsum,minsync)
|
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|
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use jt65_decode
|
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implicit none
|
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|
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class(jt65_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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integer, intent(in) :: freq
|
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integer, intent(in) :: drift
|
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integer, intent(in) :: nflip
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real, intent(in) :: width
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character(len=22), intent(in) :: decoded0
|
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integer, intent(in) :: ft
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integer, intent(in) :: qual
|
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integer, intent(in) :: nsmo
|
||||
integer, intent(in) :: nsum
|
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integer, intent(in) :: minsync
|
||||
|
||||
integer i,nft
|
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logical is_deep,is_average
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character decoded*22,csync*2,cflags*3
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if(width.eq.-9999.0) stop !Silence compiler warning
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!$omp critical(decode_results)
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decoded=decoded0
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cflags=' '
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is_deep=ft.eq.2
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if(ft.ge.80) then !QRA64 mode
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nft=ft-100
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csync=': '
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if(sync-3.4.ge.float(minsync) .or. nft.ge.0) csync=':*'
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||||
if(nft.lt.0) then
|
||||
write(*,1009) params%nutc,snr,dt,freq,csync,decoded
|
||||
else
|
||||
write(*,1009) params%nutc,snr,dt,freq,csync,decoded,nft
|
||||
1009 format(i4.4,i4,f5.1,i5,1x,a2,1x,a22,i2)
|
||||
endif
|
||||
write(13,1011) params%nutc,nint(sync),snr,dt,float(freq),drift, &
|
||||
decoded,nft
|
||||
1011 format(i4.4,i4,i5,f6.2,f8.0,i4,3x,a22,' QRA64',i3)
|
||||
go to 100
|
||||
endif
|
||||
|
||||
if(ft.eq.0 .and. minsync.ge.0 .and. int(sync).lt.minsync) then
|
||||
write(*,1010) params%nutc,snr,dt,freq
|
||||
else
|
||||
is_average=nsum.ge.2
|
||||
if(bVHF .and. ft.gt.0) then
|
||||
cflags='f '
|
||||
if(is_deep) then
|
||||
cflags(1:2)='d1'
|
||||
write(cflags(3:3),'(i1)') min(qual,9)
|
||||
if(qual.ge.10) cflags(3:3)='*'
|
||||
if(qual.lt.3) decoded(22:22)='?'
|
||||
endif
|
||||
if(is_average) then
|
||||
write(cflags(2:2),'(i1)') min(nsum,9)
|
||||
if(nsum.ge.10) cflags(2:2)='*'
|
||||
endif
|
||||
endif
|
||||
csync='# '
|
||||
i=0
|
||||
if(bVHF .and. nflip.ne.0 .and. &
|
||||
sync.ge.max(0.0,float(minsync))) then
|
||||
csync='#*'
|
||||
if(nflip.eq.-1) then
|
||||
csync='##'
|
||||
if(decoded.ne.' ') then
|
||||
do i=22,1,-1
|
||||
if(decoded(i:i).ne.' ') exit
|
||||
enddo
|
||||
if(i.gt.18) i=18
|
||||
decoded(i+2:i+4)='OOO'
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
write(*,1010) params%nutc,snr,dt,freq,csync,decoded,cflags
|
||||
1010 format(i4.4,i4,f5.1,i5,1x,a2,1x,a22,1x,a3)
|
||||
endif
|
||||
write(13,1012) params%nutc,nint(sync),snr,dt,float(freq),drift, &
|
||||
decoded,ft,nsum,nsmo
|
||||
1012 format(i4.4,i4,i5,f6.2,f8.0,i4,3x,a22,' JT65',3i3)
|
||||
|
||||
100 call flush(6)
|
||||
|
||||
!$omp end critical(decode_results)
|
||||
select type(this)
|
||||
type is (counting_jt65_decoder)
|
||||
this%decoded = this%decoded + 1
|
||||
end select
|
||||
end subroutine jt65_decoded
|
||||
|
||||
subroutine jt9_decoded (this, sync, snr, dt, freq, drift, decoded)
|
||||
use jt9_decode
|
||||
implicit none
|
||||
|
||||
class(jt9_decoder), intent(inout) :: this
|
||||
real, intent(in) :: sync
|
||||
integer, intent(in) :: snr
|
||||
real, intent(in) :: dt
|
||||
real, intent(in) :: freq
|
||||
integer, intent(in) :: drift
|
||||
character(len=22), intent(in) :: decoded
|
||||
|
||||
!$omp critical(decode_results)
|
||||
write(*,1000) params%nutc,snr,dt,nint(freq),decoded
|
||||
1000 format(i4.4,i4,f5.1,i5,1x,'@ ',1x,a22)
|
||||
write(13,1002) params%nutc,nint(sync),snr,dt,freq,drift,decoded
|
||||
1002 format(i4.4,i4,i5,f6.1,f8.0,i4,3x,a22,' JT9')
|
||||
call flush(6)
|
||||
!$omp end critical(decode_results)
|
||||
select type(this)
|
||||
type is (counting_jt9_decoder)
|
||||
this%decoded = this%decoded + 1
|
||||
end select
|
||||
end subroutine jt9_decoded
|
||||
|
||||
subroutine ft8_decoded (this,sync,snr,dt,freq,nbadcrc,decoded)
|
||||
use ft8_decode
|
||||
implicit none
|
||||
|
||||
class(ft8_decoder), intent(inout) :: this
|
||||
real, intent(in) :: sync
|
||||
integer, intent(in) :: snr
|
||||
real, intent(in) :: dt
|
||||
real, intent(in) :: freq
|
||||
integer, intent(in) :: nbadcrc
|
||||
character(len=22), intent(in) :: decoded
|
||||
|
||||
if(nbadcrc.eq.0) then
|
||||
write(*,1000) params%nutc,snr,dt,nint(freq),decoded
|
||||
1000 format(i6.6,i4,f5.1,i5,' ~ ',1x,a22)
|
||||
write(13,1002) params%nutc,nint(sync),snr,dt,freq,0,decoded
|
||||
1002 format(i6.6,i4,i5,f6.1,f8.0,i4,3x,a22,' FT8')
|
||||
call flush(6)
|
||||
call flush(13)
|
||||
endif
|
||||
|
||||
select type(this)
|
||||
type is (counting_ft8_decoder)
|
||||
this%decoded = this%decoded + 1
|
||||
end select
|
||||
|
||||
return
|
||||
end subroutine ft8_decoded
|
||||
|
||||
end subroutine multimode_decoder
|
||||
@@ -1,99 +0,0 @@
|
||||
<HTML><HEAD>
|
||||
|
||||
<TITLE> Detailed Decoding Trace Information </TITLE>
|
||||
|
||||
|
||||
</HEAD><BODY>
|
||||
|
||||
<H1> Detailed Decoding Trace Information </H1>
|
||||
|
||||
The <B>-T</B> option to <A HREF="decoding.html#decode"><TT>decode</TT></A>
|
||||
causes a detailed trace of information on the process of decoding to
|
||||
be written to standard output, in a multi-column format, with the first
|
||||
line containing the headers for each column. This format is suitable
|
||||
for reading into S-Plus or R.
|
||||
|
||||
The first column is always the number of the block being decoded;
|
||||
several lines may be output for each block. The other columns vary
|
||||
with the decoding method used, as described below.
|
||||
|
||||
|
||||
<H2>Enum-bit and Enum-block decoding methods</H2>
|
||||
|
||||
For source messages with <I>K</I> bits, 2<SUP><I>K</I></SUP> lines are output
|
||||
for each block, containing the following information:
|
||||
<BLOCKQUOTE>
|
||||
<TABLE>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>block</B> </td>
|
||||
<td>The number of the block, from zero</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>decoding</B> </td>
|
||||
<td>A possible decoding for the message bits, expressed as a hexadecimal
|
||||
number. The other bits are determined by the message bits.</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>likelihood</B> </td>
|
||||
<td>The likelihood for this decoding (ie, the probability of obtaining
|
||||
the data received if this was the message sent).</td></tr>
|
||||
</TABLE>
|
||||
</BLOCKQUOTE>
|
||||
|
||||
For these methods, the number of "iterations" (output with the
|
||||
<B>-t</B> option) is always 2<SUP><I>K</I></SUP>.
|
||||
|
||||
|
||||
<H2>Prprp decoding method</H2>
|
||||
|
||||
Each block results in one line of output for the initial state (based
|
||||
on individual likelihood ratios), and one line for each subsequent
|
||||
iteration, containing the following information:
|
||||
<BLOCKQUOTE>
|
||||
<TABLE>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>block</B> </td>
|
||||
<td>The number of the block, from zero</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>iter</B> </td>
|
||||
<td>The number of an iteration, zero for the initial state.</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>changed</B> </td>
|
||||
<td>The number of bits in the decoding that differ from the bit that would
|
||||
be chosen based just on the likelihood ratio for that bit. Bits whose
|
||||
likelihood ratios are exactly one contribute 0.5 to this
|
||||
count. (Likelihood ratios of exactly one can arise when the output
|
||||
of an AWGN channel rounds to exactly 0.00.)</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>perrs</B> </td>
|
||||
<td>The number of parity check errors in the current tentative
|
||||
decoding.</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>loglik</B> </td>
|
||||
<td>The log likelihood of the current tentative decoding.</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>Eperrs</B> </td>
|
||||
<td>The expected number of parity check errors in a decoding found
|
||||
by randomly picking a value for each bit, independently, according
|
||||
to the current bit probabilities.</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>Eloglik</B> </td>
|
||||
<td>The expected log likelihood of a decoding found by randomly picking
|
||||
a value for each bit, independently, according to the current bit
|
||||
probabilities.
|
||||
</td></tr>
|
||||
<tr align="left" valign="top">
|
||||
<td> <B>entropy</B> </td>
|
||||
<td>The entropy (in bits) of the distribution defined by the current bit
|
||||
probablities, assumed to apply to bits independently.</td></tr>
|
||||
</TABLE>
|
||||
</BLOCKQUOTE>
|
||||
|
||||
The number of "iterations" (output with the <B>-t</B> option) is
|
||||
the obvious count of probability propagation iterations. The
|
||||
initial state does not count as an iteration.
|
||||
|
||||
<HR>
|
||||
|
||||
<A HREF="decoding.html">Back to decoding documentation</A><BR>
|
||||
<A HREF="index.html">Back to index for LDPC software</A>
|
||||
|
||||
</BODY></HTML>
|
||||
Reference in New Issue
Block a user