中文说明：对信号进行频谱分析及滤波，正确率可以达到98％，利用matlab GUI实现的串口编程例子，保证准确无误，是学习通信的好帮手，matlab小波分析程序，采用了小波去噪的思想。
English Description：
The signal of frequency spectrum analysis and filtering, the correct rate can reach 98%, using Matlab GUI to realize the serial programming examples, to ensure the accuracy, is a good helper to learn communication, matlab wavelet analysis program, the idea of using wavelet denoising.