摘要
研究了小波分析在柴油机监测信号处理中的应用,提出了基于小波变换的特征提取方法。在简要讨论了小波变换及基本性质之后,探讨了利用小波分解序列的特征信息量确定信号特征频带的方法,并给出了分析实例。
After a brief review of the wavelet transform and its propeties , a new methhod for deciding the characteristic frequeny band of the vibration signal based on wavelet analysis and Kullback Leiblers minimum information is suggested . Some applications to the fault diagnosis for diesel engine are given.
出处
《机械科学与技术》
EI
CSCD
北大核心
1998年第3期440-441,489,共3页
Mechanical Science and Technology for Aerospace Engineering