海洋观测数据的卫星传输链路-以Iridium传输链路应用分析为例

摘要

For receiving the global ocean observation data timely,reliably and accurately,the components of ocean observation data transmission link in satellite network are introduced.Three components of the satellite transmission link are described in detail,which include the comparative analysis of four types of satellite network systems (i.e.Iridium,ARGOS,INMARSAT and Beidou Satellite Network System of China),the classification analysis of transmitting terminal corresponding to each satellite network and the comparative analysis of the methods for data download in the land receiving system.By taking the network system Iridium as the example,a globally covered satellite transmission link of ocean observation data is built,the real-time return of in-situ measured observation data is completed,the demonstration is provided for the construction of the satellite transmission link of ocean observation data and the comparison between the methods for downloading the PSTN and the M2M data is carried out.The results from the experimental analyses indicate that this satellite transmission link of ocean observation data is of feasibility and reliability and can be run in business.%为了使全球性的海洋观测数据能够及时、可靠、准确地接收,介绍了基于卫星网络海洋观测数据传输链路的组成,对卫星传输链路的3个组成部分进行详细说明,包括:Iridium,Argos,Inmarsat和中国北斗四种卫星网络系统及比较分析,各卫星网络对应发送终端的分类分析以及陆地接收系统数据下载方式的比较分析.以 Iridium 网络系统为例,建设可实现全球覆盖的海洋观测数据卫星传输链路,完成现场观测数据的实时回传,为海洋观测数据卫星传输链路的建设提供示范,对比PSTN和M2M两种数据下载方式,通过实验分析,结果表明该海洋观测数据的卫星传输链路具备可行性和可靠性,可以进行业务化运行.