On low-frequency errors of uniformly modulated filtered white-noise models for ground motions
Earthquake Engineering and Structural Dynamics
By: Erdal Safak and David M. Boore
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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).
Suggested Citation
Safak, E., Boore, D.M., 1988, On low-frequency errors of uniformly modulated filtered white-noise models for ground motions: Earthquake Engineering and Structural Dynamics, v. 16, no. 3, p. 381-388, https://doi.org/10.1002/eqe.4290160307.
| 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 |
| Publication Date | December 18, 2006 |
| Year Published | 1988 |
| Language | English |
| Publisher | Wiley |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Earthquake Engineering and Structural Dynamics |
| First page | 381 |
| Last page | 388 |