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    題名: Electromagnetic Imaging for Inhomogeneous Dielectric Cylinder Buried in a Slab Medium
    作者: Sun, Chi-Hsien;Li, Ching-Lieh;Chiu, Chien-Ching;Lin, Chun-Jen
    貢獻者: 淡江大學電機工程學系
    關鍵詞: Inverse Scattering;Unrelated Illumination Method;Dielectric Cylinder;Slab Medium;Microwave Imaging
    日期: 2009-03-01
    上傳時間: 2010-12-01 10:33:31 (UTC+8)
    出版者: 臺北縣:淡江大學
    摘要: The electromagnetic imaging of inhomogeneous dielectric cylinders buried in a slab medium is investigated. Dielectric cylinders of unknown permittivities are buried in second space and scattered a group of unrelated waves incident from first space where the scattered field is recorded. By proper arrangement of the various unrelated incident field, the difficulties of ill-posedness and nonlinearity are circumvented, and the permittivity distribution can be reconstructed through simple matrix operations. The algorithm is based on the moment method and the unrelated illumination method. Numerical results are given to demonstrate the capability of the inverse algorithm. They also show that the permittivity distribution of the cylinders can be successfully reconstructed even when the permittivity is fairly large. Good reconstructed results are obtained even in the presence of additive Gaussian noise in measured data. In addition, the effect of noise on the reconstruction result is also investigated.
    關聯: Tamkang Journal of Science and Engineering=淡江理工學刊 12(1), pp.67-72
    DOI: 10.6180/jase.2009.12.1.07
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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