基于射线追踪的微蜂窝环境内组合位置无线信号特性研究  

Radio Signal Characteristics of Combined Position in Microcellular Environment Based on Ray Tracing

作　　者：伍兆榔 林俊杉 王海波 WU Zhao-lang;LIN Jun-shan;WANG Hai-bo(School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学土木与交通工程学院,广州510006

出　　处：《科学技术与工程》2024年第12期5030-5036,共7页Science Technology and Engineering

基　　金：广东省基础与应用基础研究基金(2023A1515012482);广州市基础与应用基础研究项目(202102020670)。

摘　　要：为了提高频谱利用率及减少传播过程的能量衰减,建立高效的信号传播模型来预测传播路径和接收处信号强度有着重要意义。针对微蜂窝环境,提出入射及反弹射线法建立二维射线追踪模型,并基于此分析该环境下不同发射-接收机组合的信号传播特性。结果表明:不同组合的距离和微蜂窝环境共同影响信号传播路径数量。距离接近并且拥有较好的反射环境的组合的传播路径数量更多,信号损失更少。研究成果能够为微蜂窝环境下的网络规划建设提供指导。To improve the spectrum efficiency and reduce the energy attenuation in the propagation process,it is important to establish an efficient signal propagation model to predict the propagation path and the signal strength at the receiver.Aim at the microcellular environment,a two-dimensional ray tracing model based on the incident and rebound ray methods was established,with the signal propagation characteristics of different combinations of emitters and receivers were analyzed by the model in this environment.The results show that distances of different combinations and microcellular environment jointly affect the number of propagation paths of the signal.More propagation paths and less signal loss are achieved in the condition of a close-distance combined position with better reflection environment.The research results can guide network planning and construction in the microcellular environment.

关 键 词：射线跟踪模型 信号特性分析 微蜂窝环境 信号传播路径 

分 类 号：TN929[电子电信—通信与信息系统]