| 改进射线跟踪法效率的新方法 |
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| 引用本文： | 董金梁,金荣洪,耿军平,王伟. 改进射线跟踪法效率的新方法[J]. 微波学报, 2006, 22(6): 6-8,29 |
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| 作者姓名： | 董金梁 金荣洪 耿军平 王伟 |
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| 作者单位： | 上海交通大学电子工程系,上海,200030 |
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| 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。
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| 关 键 词： | 射线跟踪法 电波预测 绕射分区 求交运算 |
| 文章编号： | 1005-6122（2006）06-0006-03 |
| 收稿时间： | 2005-06-10 |
| 修稿时间： | 2005-06-102005-10-30 |
Improvement of the Computation Efficiency for Ray Tracing |
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| DONG Jin-liang,JIN Rong-hong,GENG Jun-ping,WANG Wei. Improvement of the Computation Efficiency for Ray Tracing[J]. Journal of Microwaves, 2006, 22(6): 6-8,29 |
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| Authors: | DONG Jin-liang JIN Rong-hong GENG Jun-ping WANG Wei |
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| Affiliation: | Department of Electronic Engineering, Shanghai JiaoTong University, Shanghai 200030, China |
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| Abstract: | 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. |
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| Keywords: | Ray tracing method Propagation prediction Divided diffraction region Intersection calculation |
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