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:Image Reconstruction for 2D Homogeneous Dielectric Cylinder Using FDTD Method and SSGA
學年98
學期2
出版(發表)日期2010/02/01
作品名稱Image Reconstruction for 2D Homogeneous Dielectric Cylinder Using FDTD Method and SSGA
作品名稱(其他語言)
著者Chien, Wei; Huang, Chung-Hsin; Chiu, Chien-Ching; Li, Ching-Lieh
單位淡江大學電機工程學系
出版者Amsterdam: I O S Press
著錄名稱、卷期、頁數International Journal of Applied Electromagnetics and Mechanics 32(2), pp.111-123
摘要This paper presents an image reconstruction approach for a 2-D homogeneous cylinder with arbitrary cross section in free space. The computational method combines the finite difference time domain (FDTD) method and non-uniform steady state genetic algorithm (NU-SSGA) to determine the shape and location of the scatterer with arbitrary shape. The subgirdding technique is implemented for modeling the shape of the cylinder more closely. The inverse problem is reformulated into an optimization problem and the global searching scheme NU-SSGA with closed cubic-spline 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 homogeneous 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Index terms-time domain inverse scattering; microwave imaging; FDTD; subgridding FDTD; NU-SSGA
語言英文(美國)
ISSN1875-8800;1383-5416
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Chiu, Chung-Hsin
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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