As the Beidou satellite navigation system, it is possible to use the time service as the source of synchronization referrence in Tactics FH radio.

随着北斗卫星导航系统的正式运营，利用北斗无源授时服务提供的时钟作为战术跳频电台的同步参考时钟成为了可能。

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The building up of Beidou navigation satellite system developed by China offers a new option of the time service for synchronization phasor measurement.

我国自主开发的北斗卫星导航系统为同步相量测量的时钟源提供了一种新的选择。

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In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.

对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。

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