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Ensuring GPS navigation integrity using receiver autonomous integrity monitoring

机译:使用接收器自主完整性监控确保GPS导航完整性

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The many advantages of Global Positioning System (GPS) based navigation have created a tremendous amount of interest in using GPS as the primary navigation aid onboard commercial and civil aircraft. Even in the presence of Selective Availability, the accuracy of GPS is sufficient to guide aircraft point-to-point between airports without requiring other navigation aids such as VOR or DME. Unfortunately, there is a finite probability that a GPS satellite will fail, causing the transmission of potentially misleading navigation information. Thus, before GPS can be widely adopted as a navigation aid, techniques must be devised to detect any possible failures and notify the user prior to the degradation of navigation accuracy. This paper discusses the problem of detecting possible GPS satellite failures using a technique called Receiver Autonomous Integrity Monitoring (RAIM).
机译:基于全球定位系统(GPS)的导航的许多优势已引起人们极大的兴趣,他们将GPS用作商用和民用飞机的主要导航辅助设备。即使存在选择性可用性,GPS的精度也足以引导飞机在机场之间点对点,而无需其他导航辅助工具,例如VOR或DME。不幸的是,GPS卫星很有可能会发生故障,从而导致潜在的误导性导航信息的传输。因此,在GPS可以广泛用作导航辅助之前,必须设计出技术来检测任何可能的故障并在导航精度降低之前通知用户。本文讨论了使用称为接收器自主完整性监控(RAIM)的技术检测可能的GPS卫星故障的问题。

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