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

Suguru IMAZEKI, Tsuyoshi TAKADA, Tatsuya ITOI, Takenori HIDA
2022 Journal of Structural and Construction Engineering (Transactions of AIJ)  
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
more » ... structure. The applicability of the proposed method is discussed through an experiment using actual observation records and numerical estimates.
doi:10.3130/aijs.87.487 fatcat:rlzibbpb4nhz5jsacmnwdyh4eu