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Proceedings Paper

Imaging the shape of an elastic heterogeneity by the T-matrix method
Author(s): Xiao-fei Chen; Mohammad Al-Fares; Keiiti Aki
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Paper Abstract

In this paper we shall present a new inversion method. Instead of imaging the volume heterogeneity, we shall reconstruct the shape of a heterogeneity in a homogeneous elastic medium from the knowledge of the observed scattering waves, the known incident waves and the elastic parameters of the heterogeneity as well as the surrounding material. First, we shall derive an analytic forward formulation for the scattering problem due to an arbitrary shape elastic heterogeneity by incorporating the perturbation approach with the T-matrix method for SH case, then we shall establish the corresponding inverse formation based on our analytic forward formulation. Finally, we shall assess the validity of our inversion formulation and discuss its implementation.

Paper Details

Date Published: 1 December 1993
PDF: 15 pages
Proc. SPIE 2033, Mathematical Methods in Geophysical Imaging, (1 December 1993); doi: 10.1117/12.164831
Show Author Affiliations
Xiao-fei Chen, Univ. of Southern California (United States)
Mohammad Al-Fares, Univ. of Southern California (United States)
Keiiti Aki, Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 2033:
Mathematical Methods in Geophysical Imaging
Sergio E. Zarantonello, Editor(s)

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