3rd order butterworth bandpass filter

Hey, I've searched and still didn't figure how to make a 3rd order butterworth bandpass filter

i want to filter a signal that i have with that practical filter which have Fc1 at 96kHz and Fc2 at 100kHz , fs = 500kHz

any suggestions ?

Answer 1

[Abhishek]

Hi Ahmed,

I understand that you would like to design a 3rd order Butterworth bandpass filter with the desired specifications and then use it to filter a signal.

For the first part of task, there are several existing helpful resources available listed below which explains how to design a bandpass filter:

https://www.mathworks.com/discovery/bandpass-filter.html

https://www.mathworks.com/matlabcentral/answers/429678-how-to-design-a-band-pass-filter

Once the filter is designed, MATLAB’s inbuilt “filter” function can be leveraged to apply the filter to the signal. Further details regarding “filter” function are available in MATLAB documentation:

https://www.mathworks.com/help/releases/r2024b/matlab/ref/filter.html

I hope the above resources will help achieve the task.