本文介绍全球星低轨移动卫星通信系统的设计思想、技术体系和终端设备以及目前的实施情况。
The design principles, technical terminal equipment and the implementation of the LEO satellite - based mobile communications system are described in this article.
在人们普遍给予全球移动通信系统高技术高效益评价的同时，其高投入高成本所带来的高风险也是不容忽视的。
While being widely evaluated as a high technology providing high efficiency, the global mobile satellite system entails enormous investment and costs, causing high risks.
在基于短信技术的电机转子温度在线监测系统中，无线调制解调器、全球移动通信网络以及无线移动通信模块构成了数据通信的物理平台。
The data communication platform of on - line rotator temperature monitoring system consists of wireless modem, public mobile communication network and wireless mobile communication modules.
WCDMA是第三代移动通信系统主要技术之一，受到了全球研究学者、移动通信运营厂商和广大用户的密切关注。
WCDMA is one of the main techniques in the 3rd generation mobile communication system. Researchers, manufacturers and users over the world are paying more and more attentions to its development.
WCDMA是第三代移动通信系统主要技术之一，受到了全球研究学者、移动通信运营厂商和广大用户的密切关注。
WCDMA is one of the main techniques in the 3rd generation mobile communication system. Researchers, manufacturers and users over the world are paying more and more attentions to its development.
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