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:Inverse scattering of a buried imperfect conductor by the genetic algorithm
學年90
學期1
出版(發表)日期2001/11/01
作品名稱Inverse scattering of a buried imperfect conductor by the genetic algorithm
作品名稱(其他語言)
著者丘建青; Chiu, Chien-ching; Chen, Wei-ting
單位淡江大學電機工程學系
出版者John Wiley & Sons
著錄名稱、卷期、頁數International journal of imaging systems and technology 11(6), pp.355-360
摘要Inverse scattering of an imperfectly conducting cylinder buried in a half-space is presented. A conducting cylinder of unknown shape and conductivity is buried in one half-space and scatters the incident field from another half-space. Based on the measured scattered field and the boundary condition, a set of nonlinear integral equations is derived and the inverse problem is reformulated into an optimization problem. The genetic algorithm is then employed to find the global extreme solution of the object function. As a result, the shape and the conductivity of the scatterer can be reconstructed. Even when the initial guess is far away from the exact one, the genetic algorithm can avoid the local extreme and converge to a global extreme solution. In such a case, the gradient-based method often gets stuck in a local extreme. Numerical results are given to show the effectiveness of the genetic algorithm. 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(美國)
ISSN1098-1098
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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