カーン ムハマド タヒル   KHAN Muhammad T.    所属   立命館アジア太平洋大学  国際経営学部    職種   教授
言語種別	英語
発行・発表の年月	2010/05
形態種別	論文（学術誌・プロフェショナル誌）
査読	査読あり
標題	Clear P-Wave Arrival of Weak Events and Automatic Onset Determination Using Wavelet Filter Banks
執筆形態	共著
掲載誌名	Elsevier Journal on Digital Signal Processing
巻・号・頁	20(3),pp.715-723
著者・共著者	A. G. Hafez,　T. Kohda,
概要	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