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    題名: Inverse scattering of a lossy dielectric object by the genetic algorithm
    作者: Wu, Yi-Da;Chiu, Chien-ching
    貢獻者: 淡江大學電機工程學系
    日期: 2003
    上傳時間: 2010-01-11 15:26:03 (UTC+8)
    出版者: New York: Institute of Electrical and Electronics Engineers (IEEE)
    摘要: In this paper, an efficient optimization algorithm for solving the inverse problem of a two-dimensional homogeneous lossy dielectric object is investigated. A homogeneous lossy dielectric cylinder of unknown permittivity scatters the incident wave in free space and the scattered fields are recorded. Based on the boundary condition and the incident field, a set of nonlinear surface integral equations is derived. The imaging problem is reformulated into an optimization problem and the genetic algorithm is employed to reconstruct the shape and the dielectric constant of the object. Numerical results show that the permittivity of the cylinders can be successfully reconstructed even when the permittivity is fairly large. The effect of random noise on imaging reconstruction is also investigated.
    關聯: Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International vol.1, pp.467-471
    DOI: 10.1109/IMOC.2003.1244905
    顯示於類別:[電機工程學系暨研究所] 會議論文

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