HEURISTIC SPECTRAL ESTIMATION OF BIVARIATE NONSTATIONARY PROCESSES

Authors
SPANOS PD TEIN WY GHANEM RG
Citation
Pd. Spanos et al., HEURISTIC SPECTRAL ESTIMATION OF BIVARIATE NONSTATIONARY PROCESSES, Meccanica, 31(2), 1996, pp. 207-218
Citations number
6
Categorie Soggetti
Mechanics
Journal title
Meccanica → ACNP
ISSN journal
00256455
Volume
31
Issue
2
Year of publication
1996
Pages
207 - 218
Database
ISI
SICI code
0025-6455(1996)31:2<207:HSEOBN>2.0.ZU;2-X
Abstract
A heuristic technique is developed for the estimation of auto-spectra and cross-spectra of multivariate nonstationary random processes which are used as models of earthquake accelerograms. The spectra are estim ated by considering the statistical moments of the energy of linear sy stems (filters) excited by the stochastic seismic processes. The usefu lness of the proposed technique is demonstrated by examples.