【作者】 骆少明； 张湘伟；

【Author】 Luo Shaoming Zhang Xiangwei (Shantou University,Shantou,Guangdong,P.R.China,515063)

【机构】 汕头大学；

【摘要】 本文简要介绍了小波变换的理论、小波分析的特点及基于工程应用的小波函数的构造方法,并将小波分析方法引入到非平稳冲击信号的分析中,得到基于小波分析的快速算法.该算法的数值结果与传统的Fourier算法结果比较表明,小波分析方法优于Fourier的方法。更多还原

【Abstract】 In this paper,Wavelet Analysis Method(WAM) is introduced to analyze the non-stationary,shock signals.Wavelet transform theory and construction of wavelet based on engineering application and wavelet analysis characteristics are presented.The fast wavelet analysis algorithm is derived and has been used to the treatment of vibration testing signal of the automobile. The results obtained by the new method developed are compared with those of traditional Fourier transform.It shows that the new method developed is obvious advantageous over the traditional method.更多还原