Present an effective method of computing for ray path tracing on any convex surface,based on the definition of short-cut line.

Diffraction ray tracing of GTD on the cone and cylinder;

A new method of NLOS acoustic passive location based on ray tracing is presented.

UTD method with the radiant source on convex surface is widely used in analyzing and designing of antennas mounted on electrically large targets and a creeping ray tracing algorithm of UTD method is given when the radiant point is on arbitrary convex surface.

Prediction of propagating from outdoor to indoor sites by using ray tracing method;

By making use of two dimensional (2D) ray tracing model results,a new propagation model was presented.

By using the features of reflection and refraction by indoor objects, a patched m odelcom bined w ith the ray tracing technique was presented.

Positioning model for urban microcell based on 3D ray-tracing method

Ray-tracing technique is an efficient method to analyse the propagation in urban and indoor environment, but there are still many questions which need to be studied while realizing.

This paper presents a three-dimensional propagation model for path-loss prediction in an urban microcell, based on ray-tracing techniques.

We use the efficient ray tracing method to describe the UWB indoor environments.

Through the ray tracing method, the transmission characteristic of UHF wide band radio wave in coal mine tunnels is investigated by the Matlab software.