matlab做的，关于滚动轴承振动信号故障诊断很重要的数据库，做机器学习的朋友可以看看啊！-Matlab do, on the rolling bearing vibration signal fault diagnosis is very important , machine learning friends can see ah!

分数阶傅里叶变换计算方面,基于小波变换的数字水印算法matlab代码，小波包分析提取振动信号中的特征频率。- Fractional Fourier transform computing, Based on wavelet transform digital watermarking algorithm matlab code, Wavelet packet analysis to extract vibration signal characteristic frequency.