Questions tagged [polyphase]

I try to understand how works polyphase method in term of frequency response of partial filters. Of course, the common is that the filters operate at low frequency, but what differency between them. How it works?

I am trying to implement convolution using polyphase structure but, how to split input samples among different filter banks is my major doubt. Please explain the same with example?

I would like to know whether there is a condition in selecting the number of channels $M$ and filter length $N$. As of now I am trying to design a channelizer where the data length $M$ is much less than the FIR filter length $N$. Right now I am…