淡江大學機構典藏:Item 987654321/96573
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    题名: Computational approach based on some population-based optimization algorithms for inverse scattering of a metallic cylinder
    作者: Sun, Chi-Hsien;Huang, Chung-Hsin;Li, Ching-Lieh
    贡献者: 淡江大學電機工程學系
    关键词: Cubic-Spline;Differential Evolution (DE) Algorithm;Dynamic Differential Evolution (DDE);Finite Difference Time Domain (FDTD);Inverse Scattering;Self-Adaptive Differential Evolution;(SADE) and Self-Adaptive Dynamic Differential;Evolution (SADDE);Time Domain
    日期: 2013-05
    上传时间: 2014-03-10 12:52:16 (UTC+8)
    摘要: The paper presents a study of time domain inverse scattering for a metallic cylinder based on the finite difference time domain (FDTD) method and the evolutionary algorithms (EAs). The FDTD method is employed to calculate the scattered E fields for the forward scattering, while the inverse scattering problem is transformed into an optimization one. The idea is to perform the image reconstruction by utilization of some optimization schemes to minimize the discrepancy between the measured and calculated scattered field data. The schemes tested include differential evolution (DE), dynamic differential evolution (DDE), self-adaptive differential evolution (SADE) and self-adaptive dynamic differential evolution (SADDE). The suitability and efficiency of the above methods applied to microwave imaging of a 2-D metallic cylinder are examined. Numerical results show that good reconstruction can be obtained by all optimization methods tested. However, SADDE outperforms DE, DDE and SADE regarding the reconstruction accuracy and the convergent speed in terms of the number of the function calls.
    關聯: Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on, pp.17-20
    显示于类别:[電機工程學系暨研究所] 會議論文

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