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Interference Mitigation and T-RAIM for Robust GNSS Timing

机译：干扰缓解和T-Raim for Robust GNSS时序

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Several layers of defense exist to improve Global Navigation Satellite System (GNSS) receiver performance in the presence of interference. These defenses are implemented at different receiver stages and include pre-correlation interference mitigation, post-correlation measurement screening and Fault Detection and Exclusion (FDE) at the Position, Velocity, and Time (PVT) level. This paper investigates the performance and interaction of these receiver defenses with specific focus on Robust Interference Mitigation (RIM) and Receiver Autonomous Integrity Monitoring (RAIM). The case of timing receivers with a known user position and Time-Receiver Autonomous Integrity Monitoring (T-RAIM) is also analysed. From the experimental analysis it emerges that RIM improves the quality of the measurements reducing the number of exclusions performed by RAIM. When timing solutions are considered, a more redundant measurement set is available and more exclusions are performed by T-RAIM, which is able to enhance solution reliability without compromising its availability.
机译：存在几层防御，以改善干扰存在下的全球导航卫星系统（GNSS）接收器性能。这些防御在不同的接收器阶段实现，包括位置，速度和时间（PVT）电平的相关性干扰缓解，相关性测量筛选和故障检测和排除（FDE）。本文调查了这些接收器防御与特定关注的性能和相互作用对强大的干扰缓解（RIM）和接收者自主完整性监测（RIM）。还分析了具有已知用户位置和时间接收者自主完整性监视（T-Raim）的定时接收器的情况。从实验分析中，它出现了RIM改善了测量的质量，减少了Raim所执行的排除数量。当考虑定时解决方案时，可获得更加冗余的测量集，并且T-Raim执行更多排除，可以提高解决方案可靠性而不会影响其可用性。

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