Electromagnetic Wave Propagation Characteristics from Large Scale Random Rough Surfaces

큰 규모의 불규칙 조면에 의한 전자파 전파 특성

  • Yoon Kwang-Yeol (Department of Electronic Engineering, Keimyung University) ;
  • Chai Yong-Yoong (Department of Electronic Engineering, Keimyung University)
  • Published : 2006.04.01

Abstract

In this paper we applied a ray tracing method to estimate the scattering characteristics from large scale random rough surfaces. For the electromagnetic field evaluation, we have used the diffracted coefficient of the knife edge diffraction for the diffracted rays and Fresnel's reflection coefficients in connection with reflected rays. In addition, we examine to search for the traced rays using the imaging method which can be obtained all rays to arrived at receivers accurately and the diffracted field from rough surfaces is considered. Numerical examples have been carried out for the scattering characteristics of an ocean wave-like rough surface and delay spread characteristics of a building-like surface. In the present work we have demonstrated that the ray tracing method is effective to numerical analysis of a rough surface scattering.

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