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https://github.com/saitohirga/WSJT-X.git
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acc2ea0c48
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6576 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
58 lines
1.5 KiB
Fortran
58 lines
1.5 KiB
Fortran
subroutine decode9w(nutc,nfqso,ntol,nsubmode,ss,id2)
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parameter (NSMAX=6827,NZMAX=60*12000)
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real ss(184,NSMAX)
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real ccfred(NSMAX)
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real ccfblue(-9:18)
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real a(5)
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integer*2 id2(NZMAX)
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integer*1 i1SoftSymbols(207)
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character*22 decoded
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df=12000.0/16384.0
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nsps=6912
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tstep=nsps*0.5/12000.0
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npts=52*12000
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limit=10000
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ntol=100
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ia=nint((nfqso-ntol)/df)
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ib=nint((nfqso+ntol)/df)
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lag1=-int(2.5/tstep + 0.9999)
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lag2=int(5.0/tstep + 0.9999)
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nhsym=184
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do iter=1,2
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nadd=3
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if(iter.eq.2) nadd=2*nint(0.375*a(4)) + 1
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call sync9w(ss,nhsym,lag1,lag2,ia,ib,ccfred,ccfblue,ipk,lagpk,nadd)
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sum1=sum(ccfblue) - ccfblue(lagpk-1)-ccfblue(lagpk) -ccfblue(lagpk+1)
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sq=dot_product(ccfblue,ccfblue) - ccfblue(lagpk-1)**2 - &
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ccfblue(lagpk)**2 - ccfblue(lagpk+1)**2
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base=sum1/25.0
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rms=sqrt(sq/24.0)
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snr=(ccfblue(lagpk)-base)/rms
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nsnr=nint(db(snr)-29.7)
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xdt0=lagpk*tstep
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call lorentzian(ccfred(ia),ib-ia+1,a)
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f0=(ia+a(3))*df
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! write(*,3001) nadd,a,base,rms,snr,xdt,f0,ipk,lagpk
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!3001 format(i3,9f7.2,f7.1,2i5)
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ccfblue=(ccfblue-base)/rms
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! rewind 16
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! do lag=lag1,lag2
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! write(16,3002) lag*tstep,ccfblue(lag)
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!3002 format(2f10.3)
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! enddo
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enddo
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call softsym9w(id2,npts,xdt0,f0,a(4)*df,nsubmode,xdt1,i1softsymbols)
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call jt9fano(i1softsymbols,limit,nlim,decoded)
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write(*,1100) nutc,nsnr,xdt1-1.0,nint(f0),decoded,nlim
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1100 format(i4.4,i4,f5.1,i5,1x,'@',1x,a22,i10)
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return
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end subroutine decode9w
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