教師資料查詢 | 類別: 期刊論文 | 教師: 丘建青 Chiu Chien-ching (瀏覽個人網頁)

標題:Reconstruction of the Buried Homogenous Dielectric Cylinder by FDTD and Asynchronous Particle Swarm Optimization
學年99
學期1
出版(發表)日期2010/08/01
作品名稱Reconstruction of the Buried Homogenous Dielectric Cylinder by FDTD and Asynchronous Particle Swarm Optimization
作品名稱(其他語言)
著者Huang, Chung-Hsin; Chen, Chien-Hung; Chiu, Chien-Ching; Li, Ching-Lieh
單位淡江大學電機工程學系
出版者Miami: Applied Computational Electromagnetics Society, Inc.
著錄名稱、卷期、頁數Applied Computational Electromagnetics Society Journal 25(8), pp.672-681
摘要In this paper, a time domain microwave imaging technique for resconstructing the electromagnetic properties of a buried homogeneous dielectric cylinder based on the finite difference time domain(FDTD) method and the asynchronous particle swarm optimization(APSO) are presented. The homogeneous dielectric cylinder with unknown electromagnetic properties is illuminated by transverse magnetic pulse and the scattered field is recorded outside. The idea is to minimize the errors between two E field data such that the location, shape and permittivity of the dielectric cylinder can be reconstructed through the APSO scheme. The first E field data are obtained in the forward problem by FDTD code with fine grids to mimic the experiment measurement data, while the second E field data are obtained in the inverse problem is resolve by an optimization approach, and the global searching scheme APSO is then employed to search the parameter space. A set of representative numerical results is presented for demonstrating that the proposed approach is able to efficiently reconstruct the electromagnetic properties of homogenous dielectric scatterer even when the initial guess is far away from the exact one. In addition, the effects of Gaussian noises on imaging reconstruction are also investigated.
關鍵字APSO; FDTD; Inverse scattering; Subgridding FDTD; Time domain
語言英文
ISSN1054-4887
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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