Ray tracing analysis of large-scale random rough surface scattering and delay spread

We have discussed a ray tracing method to estimate the scattering character istics from random rough surface. It has been shown from the traced rays th at the diffracted rays dominate over the reflected rays. For the field eval uation, we have used the Fresnel function for the diffracted coefficient an d the Fresnel's reflection coefficients. Numerical examples have been carri ed out for the scattering characteristics of an ocean wave-like rough surfa ce and the delay spared 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.