该上升卫星将跟另外7颗在轨道运行的卫星一起形成全球定位导航服务系统。
The rising star will join seven other satellites already in orbit to form a network which will eventually provide navigation and positioning services around the globe.
介绍了自主导航技术并提出了不足之处，设计了网络导航系统，实现了一个适合移动设备的网络导航服务系统应有的功能。
According to the design of network navigation system its function is implemented which a system is adapt to mobile device.
GPS III将改善定位、导航和定时服务，并提供先进的抗干扰能力，提供优秀的系统安全、精度和可靠性。
GPS III will improve position, navigation and timing services and provide advanced anti-jam capabilities yielding superior system security, accuracy and reliability.
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