有详细的注释，数据模型归一化，模态振动，matlab程序运行时导入数据文件作为输入参数，是信号处理的基础，对于初学matlab的同学会有帮助。- There are detailed notes, Normalized data model, modal vibration, Import data files as input parameters matlab program is running, Is the basis of the signal processing, Matlab for beginner students will help.