对流层散射超视距通信传播信道分析  

Analysis on Propagation Channels for Troposcatter Over-the-horizon Communication

作　　者：康欣[1] 曹仲晴[2] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]中国电波传播研究所,山东青岛266107

出　　处：《无线电通信技术》2015年第2期35-37,96,共4页Radio Communications Technology

摘　　要：基于对流层大气不均匀体散射机制的对流层散射通信是微波超视距通信的一种重要方式。对于对流层散射通信系统,其超视距远距离通信能力由传播路径上天线波束公共体积内具有不同几何尺度和介电特性的不均匀散射体所确定。针对对流层散射通信电路几何参数的设计需求,通过构建对流层散射超视距路径模型,分析了对流层散射通信系统随收发天线仰角及收发点距离变化时公共散射体的离地高度、特征尺度及传播路径损耗特性,其计算结果可用于对流层散射实验设计和超视距通信性能分析参考。Troposcatter is an important mechanism utilized in over-the-horizon communication based on inhomogeneous tropospheric scattering.Its communication capability depends on the size of the co-scattering volume and the dielectric property in it.To meet the design demands for the geometry parameters of tropospheric scatter communication circuit, variation of the co-scattering volume size and propagation loss with elevation angles and transmit-receive distances are analyzed and calculated by building the troposeatter over-the horizon path model.The analysis and calculation can be used in troposcatter experiment design and in over-the-horizon communication performance analysis.

关 键 词：对流层 散射 通信 超视距 传播损耗 

分 类 号：TN926.4[电子电信—通信与信息系统]