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Bulletin of the Seismological Society of America; August 1969; v. 59; no. 4; p. 1517-1534
© 1969 Seismological Society of America
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Spectral and correlation analysis of ground-motion accelerograms

S. C. LIU and D. P. JHAVERI

BELL TELEPHONE LABORATORIES, WHIPPANY, NEW JERSEY
RESEARCH DIVISION J. A. BLUME AND ASSOCIATES, SAN FRANCISCO, CALIFORNIA

Abstract

The autocorrelation function and the power-spectral density function of twelve strong-motion earthquake and three underground nuclear explosion accelerograms are obtained using a digital computer. The physical implications of the results and their application in modeling ground accelerations are studied. Simulations by the spectral approach, using filtered stationary processes, and simulations by the correlation approach, using linear, particularly autoregressive processes, are discussed in some detail.




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S. C. LIU
Evolutionary power spectral density of strong-motion earthquakes
Bulletin of the Seismological Society of America, June 1, 1970; 60(3): 891 - 900.
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