Discrete Ray Tracing Method by Using Approximate Fresnel Function

抄録

This paper is concerned with reducing computation time of the discrete ray tracing method (DRTM) by using an approximate Fresnel function. By applying the approximate Fresnel function to DRTM, we consider the accuracy and computation time of the proposed method by simulating the electromagnetic wave propagation along random rough surfaces. We show some numerical examples of computation time for field evaluation compared with that for searching rays.