重点给出系统总体设计及原理、通信系统设计、系统软件设计。
And its principle, correspondence system and software system are mainly discussed.
星座设计是卫星移动通信系统设计一个非常关键的内容，直接关系到系统的性能与成本。
Constellation design is one of the key contents for the design of satellite communications system.
星座设计是卫星移动通信系统设计一个非常关键的内容，直接关系到系统的性能与成本。
Constellation design is one of the key contents for the design of satellite communications system.
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