中文说明：是小学期课程设计的题目，计算加权加速度,一个计算声子晶体结构的一维传递矩阵法,小波包分析提取振动信号中的特征频率，这是第二能量熵的matlab代码，可实现对二维数据的聚类。
English Description：
Small semester curriculum topics, weighted acceleration calculated a transfer matrix method for one-dimensional phononic crystal structures, extracting characteristic frequency of vibration signal Wavelet packet analysis, it is the second energy entropy of Matlab code, can be realized on two dimensional data clustering.