38 lines
806 B
Plaintext
38 lines
806 B
Plaintext
subroutine compress(c)
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parameter (NMAX=15*12000) !Samples in iwave (180,000)
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complex c(0:NMAX-1)
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real xr(0:NMAX-1),xi(0:NMAX-1)
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xr=real(c)
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call wavestats(xr,NMAX,rms,pk,pwr_pk,pwr_ave)
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xr=xr/rms
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xi=aimag(c)/rms
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do i=0,NMAX-1
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c(i)=rms*cmplx(h1(xr(i)),h1(xi(i)))
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enddo
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! par=pwr_pk/pwr_ave
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! write(*,1010) 5,rms,pk,pwr_pk,pwr_ave,par
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!1010 format(i3,2f10.3,3f10.2)
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! call wavestats(xi,NMAX,rms,pk,pwr_pk,pwr_ave)
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! par=pwr_pk/pwr_ave
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! write(*,1010) 5,rms,pk,pwr_pk,pwr_ave,par
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return
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end subroutine compress
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subroutine wavestats(x,kz,rms,pk,pwr_pk,pwr_ave)
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real x(kz)
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sumsq=dot_product(x,x)
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rms=sqrt(sumsq/kz)
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pk=max(maxval(x),-minval(x))
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pwr_pk=pk*pk
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pwr_ave=sumsq/kz
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return
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end subroutine wavestats
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