容错捷联惯性／星光／卫星组合导航技术研究  

Research on fault-tolerant SINS/STAR/GNSS integrated navigation technology

作　　者：任建辉 苏祥荣 王文辉 刘峰 李邦清 

机构地区：[1]北京自动化控制设备研究所,北京100074 [2]空军驻京西地区军事代表室,北京100074

出　　处：《战术导弹控制技术》2010年第2期1-5,共5页

摘　　要：针对捷联惯性／星光／卫星组合导航系统在星光信息或卫星导航信息出现故障时，组合导航系统精度严重下降的问题，提出了一种新的基于残差x2检验的容错捷联惯性／星光／卫星组合导航算法，通过推导给出了残差x2检验法的故障检测函数公式，基于该函数设计了故障诊断方案和容错策略，实现了辅助导航信息的故障检测、隔离以及组合导航系统容错信息融合，提高了算法的鲁棒性。仿真和机载试验结果表明基于残差x2检验的容错捷联惯性，星光，卫星组合导航算法是可行和有效的，可以有效减小故障信息对组合精度的影响，提高了组合导航的精度和可靠性。In order to solve the problem that the navigation precision of SINS/STAR/GNSS integrated navigation system would be decreased greatly when some faults occurred in the reference navigation information, such as STAR or GNSS navigation information, a novel fault-tolerant SINS/STAR/GNSS integrated navigation algorithm is proposed based on the residual chi-square test. The fault detection function is presented for the residual chisquare test. Based on the function, a fault diagnosis approach is designed, which effectively detecting and isolating the faults, and a fault-tolerant information fusion strategy is presented. The results of theoretic analysis and experiment show that the algorithm is available and feasible. The fault effects are eliminated effectively, and SINS/ STAR/GNSS integrated navigation precision and reliability are improved.

关 键 词：容错组合导航 故障诊断 X2检验 捷联惯导 

分 类 号：V448[航空宇航科学与技术—飞行器设计]