摘要
利用三级小波包分解,获取信号能量分布的特征向量,根据信号能量分布的特征向量相关系数,确定两种信号相关程度,给出了识别不同信号的识别方法。试验表明,该方法用于车辆噪声、振动源识别比传统的分析方法更为简单、有效。
A method of identifying different signals is given in this paper.The method is to obtain the eigenvector of signal energy by using the solution of three grade of the wavelet packets,and the to determine the two signal correlativity with the correlation coefficient of the signal energy distribution. Experimental results show that this method is more simple and effective than traditional one in identification of noise and vibration source of automobiles.
出处
《汽车工程》
EI
CSCD
北大核心
2002年第4期302-305,共4页
Automotive Engineering
