Through the analysis of today's mobile satellite communication systems, it is found that not only the direction, but also the relative distance of the ISL are periodical.

通过对现有的卫星移动通信系统星间链路的分析发现，不但卫星移动通信系统星间链路的指向具有周期性变化的特性，而且星间链路的相对距离也在周期性变化。

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Two kinds of vehicle synchronous orbiting satellite mobile communication systems are introduced.

介绍国内两种车载同步轨道卫星移动通信系统。

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In MEO satellite mobile communication systems, the confirmation of cell dwell duration' s distribution is very important to constitute handoff str ategies properly.

在MEO卫星移动通信系统中，确定小区驻留时间分布对于合理地规划切换策略具有十分重要的意义。

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ViaSat also offers design capabilities and a number of complementary products including monolithic microwave integrated circuits and modules, DVB-S2 satellite communication components, video data link systems, data acceleration and compression, and mobile satellite antenna systems.

ENGADGET: ViaSat-1 sends its first words through the stratosphere to cooing stateside relatives