淡江大學機構典藏:Item 987654321/46202
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    題名: Inverse scattering of inhomogeneous biaxial materials coated on a conductor
    作者: 丘建青;Chiu, Chien-ching
    貢獻者: 淡江大學電機工程學系
    關鍵詞: Electromagnetic scattering;inverse problems
    日期: 1998-02
    上傳時間: 2010-03-26 21:14:04 (UTC+8)
    出版者: Piscataway: Institute of Electrical and Electronics Engineers (IEEE)
    摘要: The inverse scattering of inhomogeneous biaxial materials coated on a perfectly conducting cylinder with known cross section is investigated. A group of unrelated incident waves is used to illuminate the cylinder. By properly arranging the direction and polarization of various unrelated incident waves, the difficulties of ill-posedness and nonlinearity were circumvented and the permittivity tensor distribution can be reconstructed through simple matrix operations. For theoretical formulation based on the boundary condition, a set of integral equations is derived and solved by the moment method as well as the unrelated illumination method. Numerical results show that the permittivity tensor distribution of the materials can be successfully reconstructed even when the permittivity is fairly large. Good reconstruction has been obtained both with and without Gaussian noise in measured data. In addition, the effect of noise contamination on imaging is also examined.
    關聯: IEEE transactions on antennas and propagation 46(2), pp.218-225
    DOI: 10.1109/8.660966
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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