KHAN Muhammad T.
   Department   Ritsumeikan Asia Pacific University  College of International Management
   Position   Professor
Language English
Publication Date 2010/05
Type Research paper (Academic/Professional Journal)
Peer Review Peer reviewed
Title Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks
Contribution Type Joint Work
Journal Elsevier Journal on Digital Signal Processing
Volume, Issue, Page 20(3),pp.715-723
Author and coauthor A. G. Hafez, T. Kohda,
Details P-wave arrivals of many weak events cannot be precisely determined manually. Difference in power levels between noise and P-wave in wavelet detail of weak events enables us to determine P-wave arrival manually. Because of this power difference, automatic onset detection and picking algorithm is introduced using the same wavelet detail. Parameter settings are not needed as algorithm will work on data generated by either short or very broad band seismometers. Application of the proposed algorithm on data of three stations of Egyptian National Seismic Network (ENSN) in Cairo region shows a maximum standard deviation of 0.14 seconds of the corresponding manual picks.
DOI 10.1016/j.dsp.2009.10.002