Electromagnetic imaging for an imperfectly conducting cylinder buried in a three-layer structure by the genetic algorithm | |
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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 | en |
ISSN | 1070-4698 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 | USA |
公開徵稿 | |
出版型式 | |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/46293 ) |