小波分析法在光纤陀螺随机误差补偿中的应用  

Application of wavelet analysis method in compensation of fiber-optic gyro random error

作　　者：高伟[1] 刘晓庆[2] 李蓓[2] 苏游[2] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院 [2]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《传感器与微系统》2007年第5期82-85,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(60604019)

摘　　要：光纤陀螺随机漂移是惯性导航系统产生误差的重要因素。尽量降低陀螺仪的漂移率是进一步提高惯性导航系统精度的重要途径,也是保证光纤陀螺静态误差补偿精度的前提。从抑制光纤陀螺随机噪声的角度出发,利用小波分析法对光纤陀螺的静态输出进行滤波处理,通过对比滤波前后陀螺的输出曲线、标准差以及各项随机误差系数,能够看出:该方法有效地补偿了光纤陀螺的随机误差。The important attribute that the inertial navigation system has the errors is the fiber-optic gyro random drift. Reducing the gyro drift as far as possible is an important way of increasing the inertial navigation system precision further,also the premise of guaranteeing the optical fiber top static error compensation precision. From restraining the fiber-optic gyro random drift,filter is carries on using the wavelet analytic method to the fiber-optic gym static outpot ,through contrasting around the fiber-optic gyro output curve,the standard deviation as well as each random error coefficient,concludes that this method compensates effectively the fiber-optic gyro random error.

关 键 词：小波分析 随机误差 光纤陀螺 

分 类 号：U666.1[交通运输工程—船舶及航道工程]