摘要
提高射线跟踪法的运算效率一直是进行电波预测的一大难题,本文分析了影响射线跟踪法效率的诸多因素,提出了一种改进二维微小区室外环境射线跟踪法效率的有效方法。该方法对室外建筑物环境进行分组,同时对环境中的绕射点进行绕射分区,以减少射线同建筑物的求交运算次数,大幅提高射线跟踪法的计算效率。仿真结果表明这种方法是有效的。
Based on the analysis of the factors that affects the efficiency of the ray tracing method, a method which can dramatically reduce the numbers of intersection calculation through dividing the environments and diffraction districts is presented, therefore the efficiency of the method is highly improved. Simulation results verify the validity of this method.
出处
《微波学报》
CSCD
北大核心
2006年第6期6-8,29,共4页
Journal of Microwaves
关键词
射线跟踪法
电波预测
绕射分区
求交运算
Ray tracing method, Propagation prediction, Divided diffraction region, Intersection calculation
