静电陀螺故障诊断的探讨  

Exploration on Failure Diagnosis of Electrostatic Suspended Gyro

作　　者：杨友堂[1] 任晓景 杨位钦[2] 姜宏[2] 

机构地区：[1]清华大学精密仪器系 [2]北京理工大学自动控制系

出　　处：《振动工程学报》1997年第2期163-168,共6页Journal of Vibration Engineering

基　　金：国防科工委预研基金

摘　　要：基于最优估计概念和ＡＩＣ准则，对静电陀螺随机漂移数据用递推算法建立时变系数ＡＲ模型，进而对时变系数和其规范化标准差，以及模型残差的方差进行讨论，根据系数和规范化标准差变化情况，判断陀螺是否存在奇异信号或故障。Based on the idea of optimum estimation and AIC criterion, an AR model with time varying coefficients is established for random drift rate of electrostatic suspended gyro (ESG) by recursive algorithm. Further more, the time varying coefficients, their canonical standard errors and models residual variance are discussed. According to the variant condition of the coefficients and their canonical standard errors we distinguish that whether or not there is singular signal (or failure).

关 键 词：故障诊断 时变系数 递推算法 静电陀螺 陀螺仪 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]