Array analysis of seismic signals
作者:
Peter Goldstein,
Ralph J. Archuleta,
期刊:
Geophysical Research Letters
(WILEY Available online 1987)
卷期:
Volume 14,
issue 1
页码: 13-16
ISSN:0094-8276
年代: 1987
DOI:10.1029/GL014i001p00013
数据来源: WILEY
摘要:
In this paper we present a method for analyzing seismic signals recorded at an array of seismometers. The method is based on the multiple signal characterization (MUSIC) method. Four important features of this approach are: (1) it has the ability to resolve multiple closely spaced sources, (2) it works with both stationary, and nonstationary signals, (3) it is most sensitive to the strongest sources, and (4) it provides a geometric interpretation of the solution to the direction finding problem. We have developed a numerical algorithm that extends the MUSIC method to nonstationary and correlated signals. We present results using this algorithm to measure directions of arrival and amplitudes of multiple plane waves in a homogeneous medium.
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