Application of the FEM with adaptivity for electromagnetic inverse medium scattering problems

被引：7
|
作者：
Rachowicz, W. [1 ]
Zdunek, A. [2 ]
机构：
[1] Cracow Univ Technol, Inst Comp Modelling, PL-31155 Krakow, Poland
[2] FOI, Swedish Def Res Agcy, Stockholm, Sweden
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2011年 / 200卷 / 29-32期
关键词：
Inverse medium scattering; Electromagnetics; hp Finite elements; Automatic adaptivity; ELEMENT;
D O I：
10.1016/j.cma.2011.04.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents a study of solution of inverse medium scattering problems for 3D time-harmonic electromagnetics. The solution is based on minimization of the misfit function between the observed scattered fields and trial solutions of direct problems for the sought approximate distribution of electric permittivity. The sources of illuminating waves and the observation points of the scattered fields are located in the nearfield the scatterer. The simulations of the direct problems are performed with the Finite Element Method. Application of adaptive mesh refinement to improve accuracy of solutions is illustrated. Tests with real- and complex-valued distributions of electric permittivity, and with complete and incomplete measurement data are presented. (C) 2011 Elsevier B.V. All rights reserved.
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页码：2337 / 2347
页数：11
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