mirror of https://github.com/saitohirga/WSJT-X.git
26 lines
485 B
Fortran
26 lines
485 B
Fortran
subroutine makepings(pings,nTRperiod,npts,width,sig)
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real pings(npts)
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real*8 t
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real t0(29)
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dt=1.0/12000.0
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do i=1,nTRperiod-1
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t0(i)=i !Make pings at t=1, 2, ... 14 s.
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enddo
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amp=sig
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do i=1,npts
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iping=min(max(1,i/12000),nTRperiod-1)
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t=(i*dt-t0(iping))/width
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if(t.lt.0.d0 .or. t.gt.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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