基于三维射线跟踪模型的电波传播预测研究

Study of Wave Propagation Prediction about Three-Dimensional Ray Tracing Model

电波传播预测在现代无线通信系统中扮演着极其重要的角色,精确预测电波传播路径损耗为合理的微蜂窝无线网络规划、设计提供了必要条件。首先介绍了利用射线跟踪技术这种确定性的分析方法预测无线电波传播的理论基础和基本思想,接着详细论述了几种常用的射线跟踪方法,并对他们做了简单的比较,随后介绍了射线跟踪加速技术中的空间分区技术,最后展望了未来要解决的问题和发展方向。

Wave propagation prediction plays an important role in modern wireless communication system. Accurate predic tion of wave propagation path loss provides necessary conditions for planning and design microcellular wireless network. This paper presents basic principles of wireless wave＇s propagation prediction by using ray tracing method of determinate means. Some familiar methods of ray tracing are particular discussed and compared simply. Then it presents spatial zoning technique in ray tracing accelerate technology. At last, the main issues of the further research are pointed.