volume | PIER Journals

Abstract

This paper presents a Monte-Carlo multidomainpseudospectral time-domain (MPSTD) algorithmdeveloped for the analysis of scattering from a three dimensional (3D)objectburied below arandom rough surface separating two half spaces. In the development, special attention is paid to the 3Dcomputation domain decomposition and subdomain mapping involving the random rough surfaceas well as the subdomain patching along the rough surface. The Mote-Carlo MPSTD algorithm is then employed to determine the scattering of 3D objects of various shapes and electromagnetic properties; embedded in the lower half space with different permittivity and the roughness of the random rough surface may vary.Sample numerical results are presented, validated, and analyzed.Through the analysis, it is observed that the roughness of the random rough surface and the electromagnetic properties of the lower half space can significantly affect the scattered signature of the buried object.

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Dr. Wei Liu

Dr. Yueyang Dai

Professor Xiao-Bang Xu