惯性测量单元中加速度信号的去噪处理  

De-noising Method for Acceleration Signal Measured by Inertial Measurement Unit

作　　者：刘新厂[1] 柴晓冬[1] 郑树彬[1] 朱文发[1] 蒋啟榛 

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《仪表技术与传感器》2013年第10期97-99,共3页Instrument Technique and Sensor

基　　金：上海市教育委员会科研创新项目重点项目(12ZZ184);上海市教育委员会科研创新项目一般项目(12YZ149);上海市自然科学基金(12ZR1412300)

摘　　要：为了克服轨道状态检测中噪声信号对信号测量精度的影响,运用基于连续均方误差准则的EMD去噪方法对惯性测量单元输出的加速度信号进行处理;将去噪后的加速度信号进行连续的两次积分运算,从而得到载体的空间运动轨迹;经过试验证明,运用基于连续均方误差准则的EMD去噪方法切实可行且具有自适应的特点。In order to overcome the effect of noise signal to the measurement accuracy of signal in the process of detecting the track state, this paper used EMD de-noising method based on the consecutive mean square error criterion process the acceleration signal which was measured by the inertial measurement unit. It got the space motion path of vector by two consecutive integral oper- ation of the acceleration signal. The experimental result indicates that this method can efficiently and adaptively remove noise.

关 键 词：EMD 惯性测量单元 积分 空间运动轨迹 轨道状态检测 

分 类 号：TN911.7[电子电信—通信与信息系统]