基于小波变换的陀螺仪输出信号的干扰补偿

陀螺仪作为重要的敏感测量器件,在军事和民用方面应用很广泛。其测量信号的精度直接影响了控制系统的精度。文章提出了对干扰影响下的陀螺仪输出信号进行滤波的一种方法。该方法通过小波变换对陀螺输出信号进行多尺度分解,确定奇异点的时域位置,进而确定干扰影响的时间段,从而去掉噪声引起的细节项,实现对陀螺信号的滤波。该方法已应用于国家某重点型号项目定位定向设备中,经验证可以有效地提高陀螺仪噪声环境下的测量精度。

Disturbance Compensation of Signal output from Gyroscope Based on Wavelet Transforming

Gyroscope is an important measuring device which is used abroad This paper presents an application for fil tering signal output from gyroscope that affected by disturbance The method described is to analyze gyroscope signal across Multi-scales, then determines the location of abnormal signal in the measurement time field, and then determines the time segment affected by disturbance, which can eliminate the detail item of wavelet caused by noise According to the result of test, the method is efficacious to filter disturbance signal, which can improve the measurement accuracy of gyroscope