Microwave imaging of a partially immersed non-uniform conducting cylinder

作     者：Chien, Wei Chiu, Chien-Ching Li, Ching-Lieh Sun, Chi-Hsien 

作者机构：De Lin Inst Technol Dept Elect Engn Taipei Taiwan Tamkang Univ Dept Elect Engn Tamsui Taiwan 

出 版 物：《INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS》 (国际电磁学与力学应用杂志)

年 卷 期：2012年第40卷第3期

页      面：215-225页

核心收录：

学科分类：080805[工学-电工理论与新技术] 080904[工学-电磁场与微波技术] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Science Council  Republic of China [NSC-97-2221-E-237-006] 

主　　题：Inverse problem partially immersed non-uniform conducting cylinder steady-state genetic algorithm 

摘      要：In this paper, we investigate the imaging problem to determine both the shape and the conductivity of a partially immersed non-uniform conducting cylinder from the knowledge of scattered far-field pattern of TM waves by solving the ill-posed nonlinear equation. Based on the boundary condition and the measured scattered field, a set of nonlinear integral equations is derived and the inverse problem is reformulated into an optimization one. The steady-state genetic algorithm is then employed to find out the global extreme solution of the object function. As a result, the shape and the conductivity of the conductor can be obtained. Numerical results are given to demonstrate that even in the presence of noise, good reconstruction can be obtained.