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    题名: Application of finite-difference time domain and dynamic differential evolution for inverse scattering of a two-dimensional perfectly conducting cylinder in slab medium
    作者: Sun, Chi-Hsien;Chiu, Chien-Ching;Chien, Wei;Li, Ching-Lieh
    贡献者: 淡江大學電機工程學系
    日期: 2010-12
    上传时间: 2011-08-10 20:13:40 (UTC+8)
    出版者: Bellingham: S P I E - International Society for Optical Engineering
    摘要: We apply the dynamic differential evolution (DDE) algorithm to solve the inverse scattering problem for which a two-dimensional perfectly conducting cylinder with unknown cross section is buried in a dielectric slab medium. The finite-difference time domain method is used to solve the scattering electromagnetic wave of a perfectly conducting cylinder. The inverse problem is resolved by an optimization approach, and the global searching scheme DDE is then employed to search the parameter space. By properly processing the scattered field, some electromagnetic properties can be reconstructed. One is the location of the conducting cylinder, the others is the shape of the perfectly conducting cylinder. This method is tested by several numerical examples, and it is found that the performance of the DDE is robust for reconstructing the perfectly conducting cylinder. Numerical simulations show that even when the measured scattered fields are contaminated with Gaussian noise, the quality of the reconstructed results obtained by the DDE algorithm is very good.
    關聯: Journal of Electronic Imaging 19(4), 043016(9pages)
    DOI: 10.1117/1.3514737
    显示于类别:[電機工程學系暨研究所] 期刊論文

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