论文标题

一种非涉及反向弹性波散射的非涉及抽样方法

A non-iterative sampling method for inverse elastic wave scattering by rough surfaces

论文作者

Zhu, Tielei, Yang, Jiaqing

论文摘要

考虑具有差异元素边界条件的无限粗糙表面的二维逆弹性波散射。提出了一种非交流抽样技术,用于通过在表面上方的有界线段上进行弹性波测量,基于重建与特殊表面相关的经过修改的近场方程,该方程概括了我们对Helmholtz方程的详尽工作(Siam J. J.Imag。Sci。Sci。10(3)(3)(2017),1579-160-1602),供您使用。进行了几个数值示例,以说明反转算法的有效性。

Consider the two-dimensional inverse elastic wave scattering by an infinite rough surface with a Dirichlet boundary condition. A non-interative sampling technique is proposed for detecting the rough surface by taking elastic wave measurements on a bounded line segment above the surface, based on reconstructing a modified near-field equation associated with a special surface, which generalized our pervious work for the Helmholtz equation (SIAM J. IMAGING. SCI. 10(3)(2017), 1579-1602) to the Navier equation. Several numerical examples are carried out to illustrate the effectiveness of the inversion algorithm.

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