中文说明：用matlab编写的频谱分析程序，直接运行即可，里边包含数据包，只需把数据包换成自己的数据就可以直接运行，好用 简单
English Description：
The spectrum analysis program written by Matlab can be run directly, which contains data packets. Just change the data packet into your own data to run directly, easy to use and simple