Global Positioning system (GPS) is a radio navigation system which provides free users with accurate longitude, latitude and elevation of three-dimensional position information and time information.

全球定位系统(GPS)是为用户提供免费而精确的经度，纬度和海拔三维位置信息与时间信息的无线电导航系统。

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Then the positioning calculation can be realized for radio navigation system.

实现无线电导航系统的定位解算。

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It can be used in developing the short range radio navigation ground beacon and testing the performance of its transmitter.

该平台可在近程无线电导航地面导航设备的研制中确定发射机参数和检验性能时使用。

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The report also lauds the land-based eLoran radio navigation system as a very worthy back-up technology.

BBC: UK 'over-reliant' on GPS signals, engineers warn

The equipment transferred to law enforcement agencies included various communications security and cryptologic devices, radio navigation equipment and electronic countermeasures equipment.

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When I rode in the Model S last fall the seamless integration of the climate control, radio, navigation and phone made for an intuitive, hassle-free driving experience.

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