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https://github.com/saitohirga/WSJT-X.git
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Ffurther improvements and code cleanup for synctest.
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Joe Taylor
parent
82693d032f
commit
150c6b179c
@ -8,25 +8,36 @@ program synctest
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real candidate(MAX_CANDIDATES,5) !snr1,f0,xdt0,ipol,flip
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character*8 arg
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open(50,file='50.a',form='unformatted',status='old')
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nargs=iargc()
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if(nargs.ne.5) then
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print*,'Usage: synctest iutc nfa nfb nts_jt65 nts_q65'
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print*,'Example: synctest 1814 23 83 2 1'
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go to 999
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endif
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call getarg(1,arg)
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read (arg,*) iutc
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do ifile=1,999
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read(50,end=999) nutc,npol,ss(1:npol,:,:),savg(1:npol,:)
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call getarg(2,arg)
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read (arg,*) nfa
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call getarg(3,arg)
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read (arg,*) nfb
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call getarg(4,arg)
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read (arg,*) nts_jt65
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call getarg(5,arg)
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read (arg,*) nts_q65
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open(50,file='50.a',form='unformatted',status='old')
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do ifile=1,9999
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read(50,end=998) nutc,npol,ss(1:npol,:,:),savg(1:npol,:)
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if(nutc.eq.iutc) exit
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enddo
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close(50)
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call init_timer('timer.out')
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call timer('synctest',0)
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print*,nutc,npol
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nfa=23 !144.100
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nfb=83 !144.16
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nts_jt65=2 !JT65B tone spacing
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nts_q65=1 !Q65-60A tone spacing
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call timer('get_cand',0)
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call get_candidates(ss,savg,nfa,nfb,nts_jt65,nts_q65,candidate,ncand)
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call timer('get_cand',1)
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do k=1,ncand
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snr1=candidate(k,1)
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@ -38,25 +49,22 @@ program synctest
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1010 format(i3,4f10.3,2i3,f8.3)
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enddo
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999 call timer('synctest',1)
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998 call timer('synctest',1)
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call timer('synctest',101)
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call fini_timer()
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end program synctest
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999 end program synctest
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subroutine get_candidates(ss,savg,nfa,nfb,nts_q65,nts_jt65,candidate,ncand)
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subroutine get_candidates(ss,savg,nfa,nfb,nts_jt65,nts_q65,candidate,ncand)
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use wideband2_sync
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use timer_module, only: timer
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parameter (MAX0=1000,MAX_CANDIDATES=20)
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real ss(4,322,NFFT),savg(4,NFFT)
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real candidate(MAX_CANDIDATES,5) !snr1,f0,xdt0,ipol,flip
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integer indx(NFFT)
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logical skip
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call timer('wb_sync ',0)
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call wb2_sync(ss,savg,nfa,nfb)
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call timer('wb_sync ',1)
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df3=96000.0/NFFT
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ia=nint(1000*nfa/df3)
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@ -74,8 +82,11 @@ subroutine get_candidates(ss,savg,nfa,nfb,nts_q65,nts_jt65,candidate,ncand)
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j=indx(iz+1-i) + ia - 1
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f0=0.001*j*df3
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snr1=sync_dat(j,2)
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if(snr1.lt.3.0) exit
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if(snr1.lt.5.0) exit
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flip=sync_dat(j,5)
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if(flip.ne.0.0 .and. nts_jt65.eq.0) cycle
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if(flip.eq.0.0 .and. nts_q65.eq.0) cycle
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if(sync_dat(j,6).lt.3.0) cycle
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bw=nts_q65*108.0
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if(flip.ne.0) bw=nts_jt65*177.0
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skip=.false.
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@ -83,7 +94,6 @@ subroutine get_candidates(ss,savg,nfa,nfb,nts_q65,nts_jt65,candidate,ncand)
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diffhz=1000.0*(f0-candidate(n,2))
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if(diffhz.gt.-10.0 .and. diffhz.lt.bw) skip=.true.
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enddo
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if(sync_dat(j,6).lt.3.0) skip=.true.
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if(skip) cycle
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k=k+1
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xdt0=sync_dat(j,3)
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@ -17,7 +17,7 @@ subroutine wb2_sync(ss,savg,nfa,nfb)
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real savg(4,NFFT)
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logical first
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integer isync0(22)
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integer jsync0(63)
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integer jsync0(63),jsync1(63)
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! Q65 sync symbols
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data isync0/1,9,12,13,15,22,23,26,27,33,35,38,46,50,55,60,62,66,69,74,76,85/
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data jsync0/ &
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@ -25,15 +25,14 @@ subroutine wb2_sync(ss,savg,nfa,nfb)
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33, 34, 37, 38, 39, 40, 42, 43, 45, 46, 47, 48, 52, 53, 55, 57, &
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59, 60, 63, 64, 66, 68, 70, 73, 80, 81, 89, 90, 92, 95, 97, 98, &
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100,102,104,107,108,111,114,119,120,121,122,123,124,125,126/
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data jsync1/ &
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2, 3, 6, 7, 8, 15, 17, 19, 20, 21, 23, 26, 27, 29, 30, 31, &
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35, 36, 41, 44, 49, 50, 51, 54, 56, 58, 61, 62, 65, 67, 69, 71, &
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72, 74, 75, 76, 77, 78, 79, 82, 83, 84, 85, 86, 87, 88, 91, 93, &
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94, 96, 99,101,103,105,106,109,110,112,113,115,116,117,118/
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data first/.true./
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save first
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do j=322,1,-1
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if(sum(ss(1,j,1:NFFT)).gt.0.0) exit
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enddo
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jz=j
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tstep=2048.0/11025.0 !0.185760 s: 0.5*tsym_jt65, 0.3096*tsym_q65
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if(first) then
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fac=0.6/tstep
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@ -42,10 +41,17 @@ subroutine wb2_sync(ss,savg,nfa,nfb)
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enddo
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do i=1,63
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jsync0(i)=2*(jsync0(i)-1) + 1
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jsync1(i)=2*(jsync1(i)-1) + 1
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enddo
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first=.false.
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endif
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do j=322,1,-1
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if(sum(ss(1,j,1:NFFT)).gt.0.0) exit
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enddo
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jz=j
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df3=96000.0/NFFT
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ia=nint(1000*nfa/df3) !Flat frequency range for WSE converters
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ib=nint(1000*nfb/df3)
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@ -93,6 +99,19 @@ subroutine wb2_sync(ss,savg,nfa,nfb)
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flip=1.0
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endif
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ccf=0.
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do j=1,63
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k=jsync1(j) + lag
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ccf=ccf + ss(ipol,k,i+1) + ss(ipol,k+1,i+1)
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enddo
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ccf=ccf - savg(ipol,i+1)*2*63/float(jz)
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if(ccf.gt.ccfmax) then
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ipolbest=ipol
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lagbest=lag
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ccfmax=ccf
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flip=-1.0
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endif
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enddo ! lag
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enddo !ipol
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