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Protect against rms=0 in ccf65.

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Joe Taylor 2021-05-08 10:11:12 -04:00
parent fc967a850f
commit ed957a0390
1 changed files with 2 additions and 1 deletions
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map65/libm65/ccf65.f90
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@ -110,7 +110,8 @@ subroutine ccf65(ss,nhsym,ssmax,sync1,ipol1,jpz,dt1,flipk, &
if(abs(lag-lagpk).gt.1) sq=sq + (ccf(lag,ipol1)-base)**2
enddo
rms=sqrt(sq/49.0)
sync1=ccfbest/rms - 4.0
sync1=-4.0
if(rms.gt.0.0) sync1=ccfbest/rms - 4.0
dt1=lagpk*(2048.0/11025.0) - 2.5
! Find base level for normalizing snr2.