An Improved IEM2Mc Model for Surface Bistatic Scattering
关键词:
Bistatic scattering, IEM2M, IEM2Mc, KA, rough surface, SPM摘要
In this paper, the IEM2Mc (integral equation model for second-order multiple s and complex-permittivity scattering media) model is modified in two aspects in bistatic scattering. Firstly, the full forms of the surface current terms in the Kirchhoff surface fields are reserved. Secondly, a transition function is used to estimate the Fresnel coefficients instead of the original expression. The simulating results of the improved IEM2Mc are compared with those of small perturbation method (SPM), Kirchhoff model (KA), and method of moment (MoM) for random rough surfaces scattering problems. It is shown that the improved IEM2Mc provides better predictions than the original form, especially for the large incident or scattering angle.
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参考
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