Secondly, this thesis investigates the designing methods for VOR/DME-based area navigation flight procedure (RNAV FP).

其次，研究了基于VOR/DME导航台的区域导航飞行程序的设计方法；

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FMS whose key questions are generation and realization of optimum flight trajectories are synthesized by area navigation systems and performance management systems.

飞行管理系统是区域导航系统和性能管理系统的高度综合，其核心问题就是优化飞行轨迹的生成和实现。

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The accuracy of ionospheric delay correction is an important factor that affects the positioning precision in the applications of GPS in wide area, local area navigation systems and RTK.

在GPS的广域、局域增强导航系统和rtk的应用中，电离层延迟改正的准确度都是决定测量定位结果能否达到精度要求的重要因素。

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From a consumer standpoint, we definitely have reached a tipping point in the area of vehicle navigation.

ENGADGET: The Engadget Interview: Christian Bubenheim, general manager, Magellan Consumer Products

Mr Clark, who has been flying planes for 50 years, the area had "important navigation features" such as the motorway and the River Severn.

BBC: Pilot worry at Bristol wind turbine plan

The Army Corps of Engineers also has being dredging in the area to deepen the channel and help navigation.

CNN: STORY HIGHLIGHTS