面向组合惯性导航系统的χ^(2)故障检测与诊断  

The χ^(2) Fault Detection and Diagnosis for The Combined Inertial Navigation System

作　　者：刘阳 姚爽 谢逸 彭梦洁 陈蕊 LIU Yang;YAO Shuang;XIE Yi;PENG Mengjie;CHEN Rui(WuhanWuzi Infomation Technology Co.,Ltd.,Wuhan,Hubei 430000;Wuhan Government Service and Big Data Administration,Wuhan,Hubei 430000)

机构地区：[1]武汉武咨信息技术有限公司,湖北武汉430000 [2]武汉市政务服务和大数据管理局,湖北武汉430000

出　　处：《长江信息通信》2024年第5期10-12,共3页Changjiang Information & Communications

摘　　要：文章主要对组合导航系统中的χ^(2)故障及其诊断进行研究。将该系统基本的误差模型作为依据,针对其故障诊断,提出了在联邦滤波结构中适用的故障监测技术,即通过联邦滤波结构中的残差检验技术来检测该系统里的硬故障,将没有故障情况下的最优全局估计信息构造滑动残差用作检验标准,来检测该系统中的软故障,并将软故障检测函数作为依据,自适应调节信息分配系数。经实验发现,本次所提出的算法在此类故障检测及其诊断中十分适用。This paper mainly studies the χ^(2) faults and their diagnosis in the combined navigation system.Taking the basic error model of the system as the basis,the applicable fault monitoring technology in the federal filter structure is,to detct the hard fault in the system,construct the sliding residual fault under the fault condition,to detect the soft fault in the system,and use the soft fault detection function as the basis.It is found that the proposed algorithm is very suitable in this kind of fault detection and diagnosis.

关 键 词：惯性导航系统 故障检测与诊断 χ^(2)检验法 联邦滤波 

分 类 号：TN966[电子电信—信号与信息处理]