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P-Wave Onset Point Detection for Seismic Signal Using Bhattacharyya Distance
Bikash Chandra Sahana, M. M. Choudhary
Pages - 38 - 45     |    Revised - 30-06-2015     |    Published - 31-07-2015
Volume - 9   Issue - 3    |    Publication Date - July 2015  Table of Contents
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KEYWORDS
P-Wave Picking, Seisming Signal Processing, Bhattacharyya Distance, Seismic Data.
ABSTRACT
In seismology Primary p-wave arrival identification is a fundamental problem for the geologist worldwide. Several numbers of algorithms that deal with p-wave onset detection and identification have already been proposed. Accurate p- wave picking is required for earthquake early warning system and determination of epicenter location etc. In this paper we have proposed a novel algorithm for p-wave detection using Bhattacharyya distance for seismic signals. In our study we have taken 50 numbers of real seismic signals (generated by earthquake) recorded by K-NET (Kyoshin network), Japan. Our results show maximum standard deviation of 1.76 sample from true picks which gives better accuracy with respect to ratio test method.
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Mr. Bikash Chandra Sahana
National Institute of Technology Patna - India
sahana@nitp.ac.in
Professor M. M. Choudhary
NATIONAL INSTITUTE OF TECHNOLOGY PATNA - India