中文说明：小波包分析提取振动信号中的特征频率，用MATLAB实现的压缩传感，包含优化类的几个简单示例程序，包括广义互相关函数GCC时延估计，二维声子晶体FDTD方法计算禁带宽度的例子,可以提取一幅图中想要的目标。
English Description：
Wavelet packet analysis to extract characteristic frequency of vibration signal and for compressed sensing using MATLAB, optimization of several simple example program contains, including generalized cross correlation GCC function for time delay estimation, two-dimensional phononic crystal FDTD method calculation examples of the forbidden band width can be a piece of map to target extraction.