A novel Newton method for inverse elastic scattering problems

Autor:	Chang, Yan, Guo, Yukun, Liu, Hongyu, Zhang, Deyue
Rok vydání:	2023
Předmět:	Mathematics - Numerical Analysis
Druh dokumentu:	Working Paper
Popis:	This work is concerned with an inverse elastic scattering problem of identifying the unknown rigid obstacle embedded in an open space filled with a homogeneous and isotropic elastic medium. A Newton-type iteration method relying on the boundary condition is designed to identify the boundary curve of the obstacle. Based on the Helmholtz decomposition and the Fourier-Bessel expansion, we explicitly derive the approximate scattered field and its derivative on each iterative curve. Rigorous mathematical justifications for the proposed method are provided. Numerical examples are presented to verify the effectiveness of the proposed method. Comment: 28 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2310.08126 Zobrazit plný text záznamu View this record from Arxiv