摘要
在振动信号测试中,可由加速度信号积分求解速度与位移信号,但由于噪声的存在影响了速度与位移积分精度,因此提出一种基于提高积分精度的自适应确定小波分解层数及阈值的消噪方法。实验结果表明该方法能有效消噪,减少因为噪声引起的积分误差。
Velocity signal and displacement signal can be got by integrating acceleration signal in vibration signal test, but noise affects test precision. So a new wavelet adaptive denosing method is put forward to enhancing integral precision. Experiment results show that this adaptive method can effectively reduce integral error by noise.
出处
《测控技术》
CSCD
2008年第5期94-97,共4页
Measurement & Control Technology
