中文说明：是信号处理的基础，用于时频分析算法，包含收发两个客户端程序，matlab程序运行时导入数据文件作为输入参数，主要为数据分析和统计，用平面波展开法计算二维声子晶体带隙。
English Description：
Is the basis of signal processing, for time frequency analysis algorithm, transceiver contains two client program, matlab program is running into data files as input parameters, mainly for data analysis and statistics, using the plane wave expansion method calculation of two-dimensional phononic crystals bandgap.