Analysis and research of RAIM algorithms for identifying simultaneous two faulty satellites
用于检测双星故障的RAIM算法分析与研究*

This paper introduced two RAIM algorithms include PL method and BIT method which were proposed for identifying simultaneous two-faulty satellites. Simulated ground grids, computed and compared the results of RAIM availability and ratio of fault detection. Through comparison and analysis, how to describe the relationship between the statistics and positioning bias, and how to deal with the infection of different measurement noise is the keys for identifying simultaneous two or more faulty satellites availably.