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Investigation on the characteristics of electromagnetic scattering from 2-D fBm rough surface of layered medium

Guo Li-Xin Ren Xin-Cheng

Investigation on the characteristics of electromagnetic scattering from 2-D fBm rough surface of layered medium

Guo Li-Xin, Ren Xin-Cheng
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  • Received Date:  30 August 2007
  • Accepted Date:  02 November 2007
  • Published Online:  20 March 2009

Investigation on the characteristics of electromagnetic scattering from 2-D fBm rough surface of layered medium

  • 1. (1)西安电子科技大学理学院,西安 710071; (2)西安电子科技大学理学院,西安 710071;延安大学物理与电子信息学院,延安 716000

Abstract: The electromagnetic scattering from the rough surface of layered medium with plane wave incidence is investigated. A 2-D fBm fractal rough surface is used to simulate the natural rough surface of layered medium, and the formulae of the scattering coefficient of the 2-D fBm fractal dielectric rough surface of layered medium with the plane wave incidence is derived by using the small perturbation method in association with the power spectrum density of 2-D fBm fractal rough surface. The angular distribution of the bistatic-scattering coefficient of HH polarization are obtained by numerical computation, the influence of fractal dimension, the permittivity of substrate medium, the permittivity and the mean layer thickness of intermediate medium, the surface roughness parameters and the frequency of the incident wave on the bistatic-scattering coefficient is discussed. The fractal characteristics, the basic characteristics, the zonal characteristics and the characteristics with varying frequency of the scattering coefficient from 2-D fBm fractal rough surface are obtained.

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