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    題名: Comparison of Particle Swarm Optimization and Asynchronous Particle Swarm Optimization for Inverse Scattering of a Two- Dimensional Perfectly Conducting Cylinder
    作者: Chiu, Chien-ching;Sun, Chi-hsien;Chang, Wan-ling
    貢獻者: 淡江大學電機工程學系
    關鍵詞: Index terms–inverse scattering;time domain;FDTD;subgridding finite difference time domain;asynchronous particle swarm optimization;APSO;cubic-spline
    日期: 2011-04
    上傳時間: 2011-08-09 11:57:56 (UTC+8)
    出版者: Amsterdam: I O S Press
    摘要: This paper reports a two dimensional time domain inverse scattering algorithm based upon the finite-difference time domain method for determining the shape of perfectly conducting cylinder. Finite difference time domain method (FDTD) 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 asynchronous particle swarm optimization (APSO) is then employed to search the parameter space. By properly processing the scattered field, some EM 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; numerical results indicate that the APSO outperforms the PSO in terms of reconstruction accuracy and convergence speed. Both techniques have been tested in the case of simulated measurements contaminated by additive white Gaussian noise.
    關聯: International Journal of Applied Electromagnetics and Mechanics 35(4), pp.249-261
    DOI: 10.3233/JAE-2011-1336
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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