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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7111 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
28 lines
478 B
Fortran
28 lines
478 B
Fortran
subroutine makepings(pings,npts,width,sig)
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real pings(npts)
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real*8 t
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real t0(14)
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iping0=-999
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dt=1.0/12000.0
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do i=1,14
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t0(i)=i !Make pings at t=1, 2, ... 14 s.
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enddo
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w=width
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amp=sig
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do i=1,npts
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iping=min(max(1,i/12000),14)
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t=(i*dt-t0(iping))/w
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if(t.lt.0.d0 .and. t.lt.10.0) then
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fac=0.
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else
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fac=2.718*t*dexp(-t)
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endif
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pings(i)=fac*amp
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enddo
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return
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end subroutine makepings
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