期刊論文
| 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 | en_US |
| ISSN | 1098-1098 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 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/987654321/46194 ) |