ESTIMATION OF SOURCE PARAMETERS, LOCAL ATTENUATION STRUCTURE, AND SITE EFFECTS USING TWO-STEP SPECTRAL INVERSION METHOD

被引：0
|
作者：
Imazeki, Suguru [1 ]
Takada, Tsuyoshi [4 ]
Itoi, Tatsuya [2 ]
Hida, Takenori [3 ]
机构：
[1] School of Eng., The Univ. of Tokyo
[2] Grad. School of Eng., The Univ. of Tokyo
[3] School of Sci. and Eng., Ibaraki University
[4] Japan Atomic Energy Agency, The Univ. of Tokyo
来源：
Journal of Structural and Construction Engineering | 2022年 / 87卷 / 795期
关键词：
Numerical methods;
D O I：
10.3130/aijs.87.487
中图分类号：
学科分类号：
摘要：
It is important in the spectral inversion analysis to take into account the local inhomogeneity of the attenuation structure. In this paper, we present a two-step spectral inversion method based on a Bayesian model to estimate source parameters, local attenuation structure, and site effects from observation records. It is expected that the introduction of a Bayesian model allows us to estimate appropriate solutions even for a small number of observation records and to evaluate local attenuation structure. The applicability of the proposed method is discussed through an experiment using actual observation records and numerical estimates. © 2022 Architectural Institute of Japan. All rights reserved.
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页码：487 / 497
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