摘要
针对实际振动加速度信号中含有直流分量和大量干扰噪声,在积分过程中这些干扰导致误差积累,积分后波形发生畸变,甚至失真。在分析误差来源的基础上,探讨了振动加速度信号中直流分量、噪声以及积分趋势项的去除方法,通过实验验证去除信号中噪声和积分趋势项方法的可行性。
Vibration acceleration signal contained direct current components and lots of noise interference, and the interference resulted in error accumulating in integration and waveform distortion after integration. This paper investigated removal methods for direct current components, noise interference and vibration signal trend term based on analysis of error sources and verified the feasibility of removal method for noise signal and trend term by the experiment.
出处
《机电工程技术》
2008年第9期50-52,共3页
Mechanical & Electrical Engineering Technology
关键词
振动加速度
数字滤波
数字积分
趋势项
Vibration acceleration
digital filtering
digital integration
trend term
