12.2.6. obspy.signal.trigger.pk_baer¶
- pk_baer(reltrc, samp_int, tdownmax, tupevent, thr1, thr2, preset_len, p_dur)[source]¶
Wrapper for P-picker routine by M. Baer, Schweizer Erdbebendienst.
Parameters: - reltrc time series as numpy.ndarray float32 data, possibly filtered
- samp_int number of samples per second
- tdownmax if dtime exceeds tdownmax, the trigger is examined for validity
- tupevent min nr of samples for itrm to be accepted as a pick
- thr1 threshold to trigger for pick (c.f. paper)
- thr2 threshold for updating sigma (c.f. paper)
- preset_len no of points taken for the estimation of variance of SF(t) on preset()
- p_dur p_dur defines the time interval for which the maximum amplitude is evaluated Originally set to 6 secs
Returns: (pptime, pfm) pptime sample number of parrival; pfm direction of first motion (U or D)
Note
currently the first sample is not taken into account
See also