天气对星地光通信地面站可用度的影响研究  

Research on Influence of Weather on the Usability of Ground Station for Satellite-to-Ground Optical Communication

作　　者：张辉[1] 吴耀[1] 邬双阳[1] 

机构地区：[1]中国电子科技集团公司第二十七研究所,河南郑州450047

出　　处：《大气与环境光学学报》2014年第3期169-172,共4页Journal of Atmospheric and Environmental Optics

摘　　要：大气信道对星地光学链路影响较大,通常云层导致的衰减可能会高达几十分贝,光学链路必须在视线内无云情况下工作.因此在设计激光通信系统并进行地面站选址时,必须要考虑链路可用度问题.结合云层数据提出一种可用度计算简单模型,对我国不同城市气象站数据进行统计分析,得出不同城市十年间可用度数据,为我国星地光通信地面站选址提供一定依据。The satellite-to-ground optical link is greatly influenced by atmosphere, the intensity of laser beam would attenuate up to tens of dB after transmitting through the clouds, which induces that the laser communication system should work under visually cloud-free condition. So optical link availability must be considered when the optical communication system is designed and the ground station location is selected. Based on ten years’ statistical data of cloud cover in different cities across our country, the usability of ground station is calculated by using a simple model. The result can provide suggestions for selecting satellite-to-ground optical communication ground station location.

关 键 词：星地光通信 地面站选址 可用度 

分 类 号：TN929.1[电子电信—通信与信息系统]