摘要
基于电波传播基本原理,利用射线追踪方法、一致性绕射理论和镜像法,建立了一种新型圆柱体障碍物的城市微小区电波传播模型。采用遮挡测试、背面采集和降维处理等加速运算方法,加快了程序运行速度和镜像点的找寻,最后给出了该环境下的路径损耗。并与实验结果相比较,其采集数据和理论数据基本吻合。
This paper presents a new propagation model for urban wave propagation prediction on the basis of the fundamental theory of electromagnetic wave propagation, using ray-tracing method, UTD and the mirror image method. To raise the capacity, this method uses ray acceleration technology, including back gathering and the partition algorithm in binary space and decreasing dimensions. Path loss under this condition is given. Compared with the testing result, gathered data is in good agreement with theoretical data.
出处
《电子科技》
2005年第12期2-4,共3页
Electronic Science and Technology
基金
本课题是与四川省辐射环境评价治理有限责任公司共同研发项目
