Signal Processing Stack Exchange is a question and answer site for practitioners of the art and science of signal, image and video processing. It only takes a minute to sign up.
Sign up to join this community
This question already has an answer here:
In the window method for filter design it is explained that we do an ideal filter and then we pass it to time domain, but it will be time limited and then...
Why don't we filter directly in the frequency domain?
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
