摘要
散射链路的传输损耗取决于对流层的大气状态,不同的气象条件使得散射链路的传输损耗不同。介绍了2种典型的对流层气象状态——湍流运动和夜间辐射逆温。在研究了这两种典型大气状态的基础之上,结合抛物方程方法,进行仿真分析。仿真结果表明,对流层的气象状态对散射链路传输损耗的影响可达34 dB,且大气波导传输模式下损耗较低,这将为高效利用大气波导传输模式提供理论指导。
The transmission loss of troposcatter communication link depends on the tropospheric atmosphere state,and different weather conditions cause different transmission loss. Two typical tropospheric atmosphere conditions – turbulent motion and nocturnal radiation inversion are introduced. On the basis of the research on these above typical atmospheric states,and combined with the parabolic equation method,the simulation analysis is performed. The simulation result shows that the atmospheric condition has a greater influence on transmission loss of troposcatter communication link as large as 34 dB,and the waveguide transmission mode has lower transmission loss,which will provide theoretical guidance for the efficient utilization of the waveguide transmission mode.
出处
《无线电通信技术》
2015年第1期46-48,共3页
Radio Communications Technology
关键词
对流层
湍流运动
夜间辐射逆温
散射链路传输损耗
troposphere
turbulent motion
nocturnal radiation inversion
transmission loss of troposcatter communication link
作者简介
宋树田（1981-）,男,工程师.主要研究方向：无线通信系统.
