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A seismic source inversion study and...

Li, Cheng-Ping.

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A seismic source inversion study and non-stationary nonlinear seismic signal processing.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A seismic source inversion study and non-stationary nonlinear seismic signal processing./
Author:	Li, Cheng-Ping.
Description:	204 p.
Notes:	Source: Dissertation Abstracts International, Volume: 60-06, Section: B, page: 2578.
Contained By:	Dissertation Abstracts International60-06B.
Subject:	Geophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9933768
ISBN:	9780599346307

A seismic source inversion study and non-stationary nonlinear seismic signal processing.
Li, Cheng-Ping.

A seismic source inversion study and non-stationary nonlinear seismic signal processing. - 204 p.

Source: Dissertation Abstracts International, Volume: 60-06, Section: B, page: 2578.

Thesis (Ph.D.)--University of Southern California, 1999.

This item must not be sold to any third party vendors.

Data obtained by the newly installed large dynamic range digital strong-motion network from the 1993 Tapu, Taiwan earthquake and its aftershocks are used to examine the applicability of the empirical Green's function approach to near source rupture mapping. By summing the Green's functions over 16 subfaults distributed over the rupture plane of the mainshock, attempts are made to simulate the recordings of the mainshock, thereby extracting the rupture velocity, the slip time, and the moment release for each subfault of the source. With a simple source model, genetic algorithms are used to optimize the waveform inversion over the frequency band form 0.1 to 2 Hz. The method used in this study gives an alternative to estimate ground motions and the overall properties of source image.

ISBN: 9780599346307Subjects--Topical Terms:

535228
Geophysics.

A seismic source inversion study and non-stationary nonlinear seismic signal processing.
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020 $a 9780599346307
035 $a (MiAaPQ)AAI9933768
035 $a AAI9933768
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100 1 $a Li, Cheng-Ping. $3 3174259
245 1 2 $a A seismic source inversion study and non-stationary nonlinear seismic signal processing.
300 $a 204 p.
500 $a Source: Dissertation Abstracts International, Volume: 60-06, Section: B, page: 2578.
500 $a Chair: Ta-liang Teng.
502 $a Thesis (Ph.D.)--University of Southern California, 1999.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Data obtained by the newly installed large dynamic range digital strong-motion network from the 1993 Tapu, Taiwan earthquake and its aftershocks are used to examine the applicability of the empirical Green's function approach to near source rupture mapping. By summing the Green's functions over 16 subfaults distributed over the rupture plane of the mainshock, attempts are made to simulate the recordings of the mainshock, thereby extracting the rupture velocity, the slip time, and the moment release for each subfault of the source. With a simple source model, genetic algorithms are used to optimize the waveform inversion over the frequency band form 0.1 to 2 Hz. The method used in this study gives an alternative to estimate ground motions and the overall properties of source image.
520 $a The EMD/HSA method [Huang et al., 1998] is a powerful time series analysis tool for nonlinear, non-stationary, and dispersive data such as seismic signal. Based on local properties of the signal, sharp identifications of imbedded signal structures are given by the definition of the instantaneous frequency and amplitude. This method is utilized in several seismological applications in this study. Examples show that this new method can provide high-resolution dispersion information extraction, nonlinear seismic data analysis, and quantification of stress correlations.
590 $a School code: 0208.
650 4 $a Geophysics. $3 535228
690 $a 0373
710 2 $a University of Southern California. $3 700129
773 0 $t Dissertation Abstracts International $g 60-06B.
790 $a 0208
791 $a Ph.D.
792 $a 1999
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9933768