半球谐振陀螺仪随机漂移数学模型研究  

Research on Mathematic Model of Random Drift of Hemispherical Resonant Gyro

作　　者：李成 刘洁瑜[1] 张斌[1] 

机构地区：[1]第二炮兵工程学院304室,陕西西安710025

出　　处：《压电与声光》2012年第5期695-698,共4页Piezoelectrics & Acoustooptics

基　　金：中国博士后科学基金资助项目(20090461470)

摘　　要：半球谐振陀螺仪在实际工作过程中会受到各种随机因素的干扰,存在随机误差,影响其工作精度。该文针对半球谐振陀螺仪输出中的随机漂移,结合使用小波分解、自相关分析和平稳时间序列建模等方法,对半球谐振陀螺仪的测试数据进行处理,建立了其随机漂移的AR模型,并利用残差检验法对模型的有效性进行了检验,为半球谐振陀螺仪的随机误差补偿提供了参考依据。There are always some random factors affecting hemispherical resonant gyro（HRG） in its actual working,and the random error will have a bad influence on the accuracy of HRG.Aiming at the random drift of HRG data,the AR model of HRG random drift has been established based on processing the testing data and combining with the wavelet decomposition,autocorrelation analysis and stationary time series modeling.The effectiveness of the model has been verified with the residual test method in this paper.This work provides a corresponding reference to compensate the random drift error of HRG.

关 键 词：半球谐振陀螺仪 随机漂移 小波分解 自相关分析法 平稳时间序列 

分 类 号：U666.1[交通运输工程—船舶及航道工程]