mirror of https://github.com/saitohirga/WSJT-X.git
45 lines
912 B
Fortran
45 lines
912 B
Fortran
real function fchisq(c3,npts,fsample,a)
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parameter (NMAX=85*16)
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complex c3(npts)
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complex c4(NMAX)
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real a(3)
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complex z
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data a1,a2,a3/99.,99.,99./
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include 'jt9sync.f90'
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save
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if(a(1).ne.a1 .or. a(2).ne.a2 .or. a(3).ne.a3) then
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a1=a(1)
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a2=a(2)
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a3=a(3)
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call twkfreq(c3,c4,npts,fsample,a)
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endif
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! Get sync power.
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nspsd=16
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sum1=0.
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sum0=0.
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k=-1
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do i=1,85
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z=0.
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do j=1,nspsd
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k=k+1
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z=z+c4(k+1)
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enddo
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pp=real(z)**2 + aimag(z)**2
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if(isync(i).eq.1) then
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sum1=sum1+pp
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else
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sum0=sum0+pp
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endif
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enddo
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sync_4992=(sum1/16.0)/(sum0/69.0) - 1.0 !r4992
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sync_4993=sum1/10000.0 !r4993+
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! write(80,3001) 1.e-5*sum1,1.e-5*sum0,sync_4992,sync_4993,sync
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!3001 format(5f11.4)
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fchisq=-sync_4993
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return
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end function fchisq
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