No abstract

The application of se:veral ray-tracing techniques, in combination with GTDKJTD (Geometrical Theory of Diffraction/Uniform Theory of Diffraction), for an efficient analysis of propagation in urban scenarios is presented. The frequency of the analysis is in the UHF band, and a three-dimensional model of the geometry, using flat facets, is considered. After a review of the most commonly used ray-tracing techniques, a new method, called the Angular Z-Buffer (AZ13) technique, is presented. As is shown and validated with results, the AZB appears to be extremely efficient for GTDKJTD applications.

No abstract

No abstract

No abstract