通过分析导航定位卫星的信息支援任务集合 ，建立了相应的效能评价指标体系 ； 采用定性与定量相结合的方式研究效能评估方法。
With the development of the communication and space technology, military satellite becomes more and more important in the operational system based on information supporting.
它标志着北斗区域卫星导航定位的基本系统建设完成。
It marks the establishment of a basic system for the navigation and positioning network.
现在的定位导航服务将主要由其他六颗卫星提供。
The current navigation and positioning service will mainly be provided by the other six satellites.
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