global communication satellite system

基本解释

CompassⅠis a new Global Navigation Satellite System developed by china; it has communication and time transfer capability.
北斗一号是我国自行研制的新型卫星导航定位系统，同时兼有通讯和授时功能。
This paper introduces the present and future of Global mobile Satellite communication system. IRIDIUM system is also introduced.
本文介绍全球移动卫星通信系统的现状、种类及其将来的发展趋势。对“铱”星系统也作了介绍。
LEO satellite mobile communication system has become an important branch of global mobile communications system since it proposed.
低轨卫星移动通信系统自从提出以来就成为全球移动通信系统的一个重要分支。