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On low-frequency errors of uniformly modulated filtered white-noise models for ground motions

Earthquake Engineering and Structural Dynamics

By:
,
DOI: 10.1002/eqe.4290160307

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Abstract

Low-frequency errors of a commonly used non-stationary stochastic model (uniformly modulated filtered white-noise model) for earthquake ground motions are investigated. It is shown both analytically and by numerical simulation that uniformly modulated filter white-noise-type models systematically overestimate the spectral response for periods longer than the effective duration of the earthquake, because of the built-in low-frequency errors in the model. The errors, which are significant for low-magnitude short-duration earthquakes, can be eliminated by using the filtered shot-noise-type models (i. e. white noise, modulated by the envelope first, and then filtered).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
On low-frequency errors of uniformly modulated filtered white-noise models for ground motions
Series title:
Earthquake Engineering and Structural Dynamics
DOI:
10.1002/eqe.4290160307
Volume
16
Issue:
3
Year Published:
1988
Language:
English
Publisher:
Wiley
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
381
Last page:
388
Number of Pages:
8