摘要
小波变换是一种时频域的信号分析方法,具有傅立叶变换无可比拟的优点,适应于对非平稳信号的处理,因而更适合于故障诊断领域。以实际测量的减速器信号为例,讨论了小波分析在信号消噪和设备故障状态的判断2个方面的应用。
Wavelet transform is a kind of singal analysis method in time - frequency plane. Compares with fourier transform, wavelet transform is more fit for fault diagnosis because it is more effective for nonstationary singal. This paper discusses applications of wavelet transform in niose elimination and identifying facility fault state by practical singal of decel-erator.
出处
《煤矿机械》
北大核心
2003年第9期125-126,共2页
Coal Mine Machinery
关键词
小波变换
故障诊断
消噪
减速器
wavelet transfonn
fault diagnose
denosing
decelerator
