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COMPASS与其他GNSS组合导航完好性分析

, PP. 1632-1642

Keywords: 北斗卫星导航系统(COMPASS),垂向引导,航空进近,完好性,LPV200,RAIM

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Abstract:

?GNSS用于民用航空导航必须满足完好性要求,而完好性监测主要通过接收机自主完好性监测和基于增强系统的GNSS完好性通道两种手段实现.北斗卫星导航系统(COMPASS)的快速发展将显著改善卫星几何观测结构,此外,GNSS多频信号可以消除一阶电离层延迟的影响,从而改善RAIM的可用性,使得利用RAIM提供全球范围内无缝的航空进近的完好性服务成为可能.利用仿真数据分析了COMPASS对RAIM可用性的贡献;分析了COMPASS单系统及与其他卫星导航系统组合用于民用航空导航时,利用RAIM能够满足航空进近哪些阶段的完好性需求;探讨了COMPASS用户测距精度对其完好性性能的影响.

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