中文说明： 小波包分析提取振动信号中的特征频率，详细画出了时域和频域的相关图，混沌的判断指标Lyapunov指数计算,模拟数据分析处理的过程，研究生时的现代信号处理的作业，仿真图是速度、距离、幅度三维图像。
English Description：
Extraction characteristic frequency of vibration signal Wavelet packet analysis, detailed drawing in time domain and frequency domain correlation, index of chaos Lyapunov index calculation, simulation and data analysis process, when modern signal processing operations, simulation of speed, distance, three-dimensional image.