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 an imperfectly conducting cylinder buried in a three-layer structure by the genetic algorithm
學年92
學期1
出版(發表)日期2004/01/01
作品名稱Electromagnetic imaging for an imperfectly conducting cylinder buried in a three-layer structure by the genetic algorithm
作品名稱(其他語言)
著者Lee, Y. S.; Chiu, Chien-ching; Lin, Y. S.
單位淡江大學電機工程學系
出版者Cambridge, MA: Electromagnetics Academy
著錄名稱、卷期、頁數Progress In Electromagnetics Research 48, pp.27-44
摘要The imaging of an imperfectly conducting cylinder buried in a three-layer structure by the genetic algorithm is investigated. An imperfectly conducting cylinder of unknown shape and conductivity buriedin the secondla yer scatters the incident wave from the first layer or the thirdla yer. We measure the scatteredfieldin the first andthird layers. Based on the boundary condition and the recorded scattered field, a set of nonlinear integral equations is derived and the imaging problem is reformulatedin to an optimization problem. The genetic algorithm is then employedto findout the global extreme solution of the cost function. Numerical results demonstrated that, even when the initial guess is far away from the exact one, goodreconstruction can be obtained. In such a case, the gradient-based methods often get trapped in a local extreme. In addition, the effect of uniform noise on the reconstruction is investigated.
關鍵字
語言英文
ISSN1070-4698;1559-8985
期刊性質國外
收錄於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
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!