小波包分析提取振动信号中的特征频率，计算多重分形非趋势波动分析matlab程序,模拟数据分析处理的过程。- Wavelet packet analysis to extract vibration signal characteristic frequency, Calculation multifractal detrended fluctuation analysis matlab program, Analog data analysis processing.

用于信号特征提取、信号消噪，matlab程序运行时导入数据文件作为输入参数，利用最小二乘算法实现对三维平面的拟合。- For feature extraction, signal de-noising, Import data files as input parameters matlab program is running, Least-squares algorithm to fit a three-dimensional plane.