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Electromagnetic Scattering of Three-Dimensional (3D) Objects Embedded in a Half Space with Random Rough Surface

Release time:April 16, 2018

Topic:Electromagnetic Scattering of Three-Dimensional (3D) Objects Embedded in a Half Space with Random Rough Surface

Speaker:Professor Xiao-Bang Xu (Clemson University)

Date:April 18, 2018 at 9:00

Venue:E701, New Main Building

Abstract:

A Monte-Carlo multidomain pseudospectral time-domain (MPSTD) algorithm is developed for the analysis of scattering from a two dimensional (2D) and three dimensional (3D) object buried below a random rough surface separating two half spaces. In the development, special attention is paid to the 3D computation domain decomposition, PML derivations, filtering technique and subdomain mapping involving the random rough surface as well as the subdomain patching along the rough surface. The Mote-Carlo MPSTD algorithm is then employed to determine the scattering of 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. Then, scattering of objects buried in layered structure with random rough surface is studied using MPSTD algorithm. 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.

Bio of the Speaker:

Xiao-Bang Xu received his bachelor degree from the Department of Radio Electronics of Tsinghua University in 1968, and his doctoral degree from the Electrical Engineering Department of the University of Mississippi in 1985. He is a Professor Emeritus of the Holcombe Department of Electrical Engineering of Clemson University. Prof. Xu's research interests are in applied electromagnetic theory and numerical methods. His work has been published at several international conferences and high-ranked professional journals such as IEEE Transactions on Antennas and Propagation, IEEE Transactions on Microwave Theory and Techniques, IEEE Transactions on Power Delivery, IEEE Transactions on Magnetics, and IEEE Antennas and Wireless Propagation Letters. He has been the journal editor, reviewer and board member for Journal of Electromagnetic Waves and Applications. He has served as reviewers for various leading journals (including IEEE Transactions on Antennas and Propagation, IEEE Transactions on Microwave Theory and Techniques, Radio Science, IEEE Power Engineering Society, IEEE Transactions on Geoscience and Remote Sensing, IEEE Transactions on Electromagnetic Compatibility, etc.), books and proposals.

 

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