Abstract: In order to get accurate predictions in the complex environment, for the image method is usually only used in simple communication environment, a new ray tracking method is obtained by analyzing the characteristics of test ray and image ray method. Test ray method is effectively and succinctly used to find out a rough path from the source to the scene point. The path is corrected by image ray method. This method has high accuracy and can be used in complex environments.
method of image,
method of test ray,