对滚动轴承声发射信号进行处理，运用基于正交小波基连续小波变换，寻找最优尺度参数(you can know the functions that finds the best scale in the CWT coefficients or the way how you can do this.)

寻找连续小波变换最优尺度参数，不错的英文文章，值得下载(Finding the Optimal Scaling Parameters of Continuous Wavelet Transform)