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.
出处
《仪表技术与传感器》
CSCD
北大核心
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)
关键词
EMD
惯性测量单元
积分
空间运动轨迹
轨道状态检测
EMD
inertial measurement unit
consecutive integral
space motion path
track state detection
