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伪卫星能够为导航星座提供额外的观测信号,利用冗余观测量将帮助用户自主完成故障的检测与识别,在部分卫星星座几何分布不良的情况下,仍能获得基本的导航服务。本文针对伪卫星参与定位下的接收机自主完好性问题展开了研究,分析了伪卫星辅助北斗定位模式下的完好性监测算法,给出了相应的故障检测识别算法及用户误差保护级计算方法,分析了相应配置下的算法性能,有效降低了故障检测概率和系统完好性保护级x PL。
Pseudo-satellites can provide additional constellation navigation signals to provide observation signals, the use of redundant observations will help users to complete the fault detection and identification, in the partial geometry of the satellite constellation poor distribution of cases, can still get basic navigation services. In this paper, we study the receiver autonomic integrity under the Pseudolite positioning and analyze the integrity monitoring algorithm under Pseudo satellite-assisted Beidou positioning. The corresponding fault detection and recognition algorithms and user error protection level calculation methods are given. The performance of the algorithm under the corresponding configuration is analyzed, which effectively reduces the probability of fault detection and system integrity protection level x PL.