中文说明：能量谱分析计算,代码里有很完整的注释和解释，matlab小波分析程序，最小二乘回归分析算法，含噪脉冲信号进行相关检测,小波包分析提取振动信号中的特征频率。
English Description：
Calculation of the energy spectrum analysis, the code is very complete annotated and explained, matlab wavelet analysis program, least squares regression analysis algorithm, the noisy pulse signal detection, wavelet packet analysis to extract the characteristic frequency of the vibration signal.