这个是对一个一维信号的Excel数据加载进matlab程序，然后进行巴特沃斯的低通滤波。-This is a one-dimensional signal of Excel data is loaded into the matlab program, and then Butterworth low-pass filtering.

it is the code for butterwoth bandstop filter application chebyshew filters application in digital signal processing-it is the code for butterwoth bandstop filter application chebyshew filters application in digital signal processing