obspy.signal.trigger

Various routines related to triggering/picking

Module implementing the Recursive STA/LTA. Two versions, a fast ctypes one and a bit slower python one. Furthermore, the classic and delayed STA/LTA, the carlSTATrig and the zDetect are implemented. Also includes picking routines, routines for evaluation and visualization of characteristic functions and a coincidence triggering routine.

See also

[Withers1998] (p. 98) and [Trnkoczy2012]

copyright:The ObsPy Development Team (devs@obspy.org)
license:GNU Lesser General Public License, Version 3 (http://www.gnu.org/copyleft/lesser.html)

Functions

arPick Return corresponding picks of the AR picker
carlSTATrig Computes the carlSTATrig characteristic function.
classicSTALTA Computes the standard STA/LTA from a given input array a. The length of
classicSTALTAPy Computes the standard STA/LTA from a given input array a. The length of
coincidenceTrigger Perform a network coincidence trigger.
delayedSTALTA Delayed STA/LTA.
pkBaer Wrapper for P-picker routine by M. Baer, Schweizer Erdbebendienst.
plotTrigger Plot characteristic function of trigger along with waveform data and
recSTALTA Recursive STA/LTA.
recSTALTAPy Recursive STA/LTA written in Python.
triggerOnset Calculate trigger on and off times.
zDetect Z-detector.