射线追踪技术在城市环境场强预测计算中的应用

Application of ray-tracing to field strength prediction in urban environments

为了计算在城市环境的基站服务区场强分布,使用的传播模型是“混合预测算法”,仿真计算是应用射线追踪技术来实现。应用射线追踪技术考虑了多面体模型中“阴影测试法”、多面体面模型及其电特性、射线追踪可视化技术等。最后给出了一个实例说明本方案的可用性。

The field strength distribution of base station in radio service areas is calculated by using the propagation model of synthesis prediction. For the implementation of simulation, the ray-tracing technique is employed by considering the shadow testing of surface model of polyhedron, the surface model of polyhedron and its electric characteristic, the viewgraph of the ray-tracing technique, etc. The usability of the method presented is illuminated with an example in the end of this paper.