地球卫星通信系统有VSAT卫星通信网络系统、低轨道卫星移动通信系统和移动卫星通信系统（Inmarsat）等，应用于水情自动测报中的卫星通信系统具有通信距离远、覆盖面积大、通信频带宽、信道质量好以及通信组网灵活等优点，卫星通信水情自动测报系统主要由遥测站和前置接收机构成．Inmarsat卫星通信系统的操作中心设在伦敦，卫星的控制中心设在华盛顿和达姆斯特，系统分为三个主要部分：空间段、地面站（LES）和移动站（MES）．VSAT卫星网络系统是一种很具竞争力的新型卫星通信网络系统，可为用户提供点到点和点到旯点之间的通信服务，由中心站、小型站或微型站等地球站组成．文中还介绍了四川映秀湾－太平驿水电厂水情自动测报系统，该系统采用了VSAT卫星通俗 The earth satellite communication system has a VSAT satellite communication network system, a low-orbit satellite mobile communication system and a mobile satellite communication system (Inmarsat), and the satellite communication system used in the hydrological automatic measurement and reporting has the advantages of long communication distance, large coverage area, , Good channel quality and flexible communication network, satellite automatic water regime measurement and reporting system consists of telemetry station and front receiver. The Inmarsat satellite communications system is based in London and has satellite control centers in Washington and Darmstadt. The system is divided into three main sections: the space segment, the LES and the MES. VSAT satellite network system is a very competitive new satellite communication network system that can provide users with point-to-point and point-to-point communication services, from the central station, small station or micro-station and other earth stations. The article also introduced the Sichuan Yingxiu Bay - Taipingyi Hydropower Hydrological Automatic Measurement System, the system uses VSAT satellite popular