摘要
利用积分滤波器对加速度信号进行二次积分,从而获得物体的运动位移信息;为提高系统的稳定性和抗噪性,在积分前分别采用减平均值法和小波变换对加速度信号进行去直流量及去噪处理;通过仿真信号验证算法的正确性,降低了实验成本;最后利用采用XW-IMU5250惯性测量单元实测一个物体的运动,得到了物体精确的运动轨迹。
Displacement information was got from the acceleration signals by the second-order integration filter.The simulation signal was used to verify the correctness of the algorithm,and the experimental cost was reduced by the method.In order to improve the stability and the anti-noise ability of the system,the acceleration was processed by removing the average and wavelet transform before integration.Finally,the acceleration was measured by the inertial measurement unit XW-IMU5250 and more precise displacement data can be acquired from the algorithm.
出处
《仪表技术与传感器》
CSCD
北大核心
2012年第5期62-64,共3页
Instrument Technique and Sensor
基金
上海市教育委员会重点学科建设项目(J51401)
上海高校青年教师培养资助计划项目(gjd11023)
上海市科技攻关项目(08220511000)
关键词
加速度
积分滤波器
位移
去直流量
小波变换
acceleration
integration filter
displacement
removing the average
wavelet transform
