激光陀螺随机噪声参数估计和滤波方法研究  

Study on parameter estimation and filtering method for stochastic noise in ring laser gyroscope

作　　者：张传斌[1] 徐清雷[1] 邓正隆[1] 

机构地区：[1]哈尔滨工业大学控制科学与工程系,黑龙江哈尔滨150001

出　　处：《光电工程》2002年第S1期77-79,共3页Opto-Electronic Engineering

基　　金：武器装备预研基金项目(01HT0115)

摘　　要：激光陀螺(RLG)中随机噪声是影响其精度的一个重要因素,针对其噪声的特殊性质,采用小波方法去除随机噪声,提高激光陀螺的精度。通过小波分析的参数估计方法获得噪声参数,并用小波阈值滤波方法去除噪声,对某型号的RLG的滤波结果表明了该方法的有效性。Stochastic noise in ring laser gyroscope is an important factor affecting its accuracy. In accordance with the property of its noise, the accuracy of ring laser gyroscope is improved by eliminating the stochastic noise by means of wavelet method. The noise parameters are obtained through the parameter estimation method for wavelet analysis. The noise is eliminated with wavelet threshold filtering method. The filtering results of a ring laser gyroscope show the effectiveness of the method.

关 键 词：激光陀螺 小波变换 随机噪声 

分 类 号：TN244[电子电信—物理电子学]