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A Novel Iteration Model for Electromagnetic Scattering from Rough Surfaces

  • Chang-Ze Li EMAIL logo , Chuangming Tong , Lihui Qi , Weijie Wang and An Wang
Published/Copyright: November 24, 2015
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Abstract

An iterative physical optics (IPO) is proposed to solve the extra large scale (e.g. larger than one thousand square lambda) electromagnetic (EM) scattering from randomly rough surfaces in this paper. The forward-backward methodology and its modification with under-relaxation iteration improve convergence and stability of the IPO; the fast far-field approximation (FaFFA) in the matrix-vector product reduces the computational complexity based on the scattering characteristics of rough surface. Through these techniques, this model can solve effectively the extra large scale scattering problem from the randomly rough surfaces.

Funding statement: Funding: This work has been support by the National Natural Science Foundation of China (Grant No. 61372033).

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Received: 2015-4-11
Published Online: 2015-11-24
Published in Print: 2016-1-1

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