摘要
介绍了数字信号处理中谱消除法的基本原理.结合MEMS陀螺仪漂移信号的频谱特点,给出了谱消除法在MEMS陀螺仪漂移信号处理中的应用.用此方法对不同频率的动态正弦信号进行仿真,信号的标准差可以从326.8(°)/h降低到36.9(°)/h.与传统的Kalman滤波、小波变换等去漂移方法相比,该方法具有运算简单,适时性好,易于硬件实现等优点.
The method of how to get rid of the spectrum from the digital signal procession was introduced. Frequency character from the MEMS gyroscope drift signal was analyzed. Application of the method in the MEMS gyroscope de-drift procession was also given. Result from the simulation of the different frequency dynamic sine signal was that the standard variance of the signal decreased from 326.8 deg/h to 36.9deg/h. Compared with the traditional procession of the Kalman filter and the wavelet transformation, the method had the virtue of the simple computation, good real-time and the easiness of the hardware implementation.
出处
《传感技术学报》
CAS
CSCD
北大核心
2006年第6期2523-2525,共3页
Chinese Journal of Sensors and Actuators
基金
国家863基金项目资助(2202AA812038)
关键词
陀螺仪
频谱
漂移
傅立叶变换
gyroscope
spectrum
drift
Fourier transformation
