Scattering by Conducting Bodies in Random Media

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  • Tateiba Mitsuo
    Department of Computer Science and Communications Engineering, Faculty of Information Science and Electrical Engineering, Kyushu University
  • Meng Zhi Qi
    Department of Electrical Engineering, Faculty of Engineering, Fukuoka University
  • El-Ocla Hosam
    Department of Computer Science, Lakehead University

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This paper presents that scattering by a body in a random medium consists of the following two issues; one is scattering of spatially partially coherent wave by the body and the other is coupling between incident and scattered waves through the random medium. Investigating separately each issue makes the scattering more understandable. The numerical analysis of scattered power by conducting cylinders leads to the radar cross-sections quite different from those in free space, under the condition that the radar cross-section of the random medium is negligibly small. The causes of the difference are explained on the basis of above separation of the scattering, and we emphasize that the spatial coherence length of incident wave is one of key parameters for estimating the cross sections.

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