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:Electromagnetic imaging for shape and variable conductivity
學年93
學期1
出版(發表)日期2004/09/01
作品名稱Electromagnetic imaging for shape and variable conductivity
作品名稱(其他語言)
著者Wei, Chien; 丘建青; Chiu, Chien-ching
單位淡江大學電機工程學系
出版者Wiley-Blackwell
著錄名稱、卷期、頁數International Journal of RF and Microwave Computer-Aided Engineering 14(5), pp.433-440
摘要We consider the inverse problem of determining both the shape and the conductivity of a two-dimensional (2D) conducting scatterer from the knowledge of the far-field pattern of TM waves by solving the ill-posed nonlinear equation. Based on the boundary condition and measured scattered field, a set of nonlinear integral equations is derived and the imaging problem is reformulated into an optimization problem. Satisfactory reconstructions are achieved by the genetic algorithm. Numerical results demonstrate that, even when the initial guess is far away from the exact one, good reconstruction can be obtained. In addition, the effect of Gaussian noise on the reconstruction results is investigated. The numerical results show that multiple incident directions permit good reconstruction of shape and, to a lesser extent, conductivity in the presence of noise in measured data.
關鍵字
語言英文
ISSN1099-047X
期刊性質國內
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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