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:Cubic-spline expansion for a two-dimensional periodic conductor in free space
學年95
學期1
出版(發表)日期2006/11/01
作品名稱Cubic-spline expansion for a two-dimensional periodic conductor in free space
作品名稱(其他語言)
著者Chien, Wei; Huang, Chung-hsin; 丘建青; Chiu, Chien-ching
單位淡江大學電機工程學系
出版者Amsterdam: IOS Press
著錄名稱、卷期、頁數International Journal of Applied Electromagnetics and Mechanics 24(1-2), pp.105-114
摘要This paper presents a computational approach to the imaging of a two-dimensional periodic conductor. Both cubic-spline method and trigonometric series for shape description are used and compared. A periodic conducting cylinder with unknown shape in free space and the scattered field is recorded outside. Based on the boundary condition and the recorded scattered field, a set of nonlinear integral equations is derived and the imaging problem is reformulated into an optimization problem. The genetic algorithm is employed to find out the global extreme solution of the object function. It is found that the shape described by cubic-spline can be reconstructed. In such a case, Fourier series expansion will fail. Even when the initial guess is far away from the exact one, the cubic-spline expansion and genetic algorithm can avoid the local extreme and converge to a global extreme solution. Numerical results are given to show that the shape description by using cubic-spline method is much better than that by the Fourier series. In addition, the effect of Gaussian noise on the reconstruction is investigated.
關鍵字
語言英文
ISSN1383-5416
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!