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zero xings are now be derived from demeaned data

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Sebastian Wehling-Benatelli 2015-06-10 15:37:58 +02:00
parent e0568e3849
commit e6b0c2b470
1 changed files with 3 additions and 1 deletions
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pylot/core/pick/utils.py
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@ -67,7 +67,9 @@ def earllatepicker(X, nfac, TSNR, Pick1, iplot=None):
#get earliest possible pick #get earliest possible pick
#determine all zero crossings in signal window #determine all zero crossings in signal window
zc = crossings_nonzero_all(x[isignal]) # remove mean from signal window
signal = x[isignal] - x[isignal].mean()
zc = crossings_nonzero_all(signal)
#calculate mean half period T0 of signal as the average of the #calculate mean half period T0 of signal as the average of the
T0 = np.mean(np.diff(zc)) * X[0].stats.delta #this is half wave length! T0 = np.mean(np.diff(zc)) * X[0].stats.delta #this is half wave length!
#T0/4 is assumed as time difference between most likely and earliest possible pick! #T0/4 is assumed as time difference between most likely and earliest possible pick!