射线跟踪模型及应用实例

Ray-tracing Model and Application Example

射线跟踪模型作为一种高精度的规划仿真传播模型,在大中型城市重点覆盖区域的规划方案仿真验证中得到广泛应用。首先对射线跟踪模型基本原理进行介绍,然后对影响射线跟踪模型准确性的因素进行分析,最后以广州天河区和东山区的部分区域为例,将射线跟踪模型预测结果与现场路测结果进行验证及对比分析,从而说明在微蜂窝环境下射线跟踪模型的应用优势。

As a high-precision propagation model,ray-tracing model has been widely used in coverage simulation verification of large and medium cities＇ key area.This article first introduces the basic principle of ray-tracing model,and then analyzes the factors which affect the accuracy of ray-tracing model.Finally,the article makes comparative analysis between ray-tracing model prediction results and driving test results with the example in some district in Guangzhou,which shows ray-tracing model＇s application advantages in micro-cellular environment.