中文说明：基于负熵最大的独立分量分析，用平面波展开法计算二维声子晶体带隙,基于互功率谱的时延估计，实现串口的数据采集，课程设计时编写的matlab程序代码，包括数据分析、绘图等等。
English Description：
Negative entropy is the largest independent component analysis based on, using the plane wave expansion method calculation of two-dimensional phononic crystal band gap, based on the cross power spectrum time delay estimation to realize serial data acquisition and matlab code written curriculum design, including data analysis, drawing and so on.