期刊論文
| 學年 | 97 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2009-05-01 |
| 作品名稱 | Cubic-Spline Expansion for Electromagnetic Imaging of Buried Multiple Conductors |
| 作品名稱（其他語言） | |
| 著者 | Chiu, Chien-Ching; Tu, Ting-Chieh; Wysocki, Tadeusz A.; Wysock, Beata J.; Lu, Hung-Cheng |
| 單位 | 淡江大學電機工程學系 |
| 出版者 | Philadelphia: Taylor & Francis Inc. |
| 著錄名稱、卷期、頁數 | Electromagnetics 29(4), pp.321-336 |
| 摘要 | We present an inverse scattering problem for recovering the shapes of multiple conducting cylinders with the immersed targets in a half-space by the genetic algorithm. Two separate perfect-conducting cylinders of unknown shapes are buried in one half-space and illuminated by a transverse magnetic plane wave from the other half-space. In the shape expansions, the cubic-spline method is utilized to describe the shapes of objects. Based on the boundary condition and the measured scattered field, we have derived a set of nonlinear integral equations, and the inverse scattering problem is reformulated into an optimization problem. The improved steady-state genetic algorithm is used to solve the global extreme solution. Here, frequency dependence on the inverse problem of buried multiple conductors is investigated. Numerical results show that the reconstruction is good in the resonant frequency range, even when the initial guesses are far different from the original shapes. On the contrary, if the frequency is too high or too low, the reconstruction becomes bad. In addition, the reconstructed errors for different distances between two conductors are investigated. It is found the reconstructed results are poor when the distance between two conductors is less than about a wavelength. |
| 關鍵字 | inverse problem;cubic-spline;Fourier series;half-space;steady-state genetic algorithm |
| 語言 | en |
| ISSN | 0272-6343; 1532-527X |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | Chiu, Chien-Ching |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60956 ) |