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- 2017
BDS/GPS组合的H-ARAIM PBN和ADS-B应用可用性评估
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Abstract:
摘要 水平-先进接收机自主完好性监测（H-ARAIM）属欧美大力发展的新型机载自主卫星导航完好性监测技术。从H-ARAIM的基于性能的导航（PBN）和广播式自动相关监视（ADS-B）应用方法出发，基于美国全球卫星导航系统（GPS）和中国自主北斗卫星导航系统（BDS）组合系统，综合考虑不同卫星故障概率、不同星座故障概率、不同星钟星历误差配置以及不同星座配置，全面仿真评估了H-ARAIM的PBN和ADS-B应用全球可用性，结果表明：卫星和星座故障概率变化，对水平保护级（HPL）结果的影响不足0.1%，PBN和ADS-B均可实现全球100%可用性；星钟星历误差变化，会导致较大幅度的HPL变化，最大值可达20 m，但对PBN和ADS-B应用可用性没有显著影响；不同星座配置会对全球和亚太区域平均99.9%HPL结果及PBN和ADS-B应用可用性产生显著影响，HPL变化幅度达到32 m，可用性随星座配置不同而变化，最差可降低到96%。所取成果可为北斗民航应用提供坚实的理论参考和可靠的技术支撑。
Abstract：Horizontal-advanced receiver autonomous integrity monitoring (H-ARAIM) is a new type of airborne autonomous satellite navigation integrity monitoring technology developed in the United States and Europe. In view of performance based navigation (PBN) and automatic dependent surveillance-broadcast (ADS-B) application methods of H-ARAIM and based on the global position system (GPS) and our own BeiDou navigation satellite system (BDS) combination system, different constellation/satellite failure probabilities, different satellite clock and ephemeris error configurations and different constellation configurations have been considered, and then the availability of PBN and ADS-B of H-ARAIM was assessed. The results show that the change of constellation/satellite failure probability has little impact on the results of horizontal protection level (HPL), which is less than 0.1%. Both PBN and ADS-B can achieve 100% availability globally. The change of satellite clock and ephemeris configuration can lead to large variation of HPL with the maximum reaching 20 m. But there is no significant influence on PBN and ADS-B availability. Different constellation configurations have significant impact on average 99.9%HPL of the Asia-Pacific region and the world, as well as PBN and ADS-B availability. Variations in HPL reach 32 m. Availability varies with different constellation configurations, and the worst can be reduced to 96%. The results obtained can provide a solid theoretical reference and reliable technical support for the application of BeiDou civil aviation.
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