Can we use "dfilt.cascade" for mix of fir and iir filters?

There is MATLAB command "dfilt.cascade" that is used for series connection of filters

My question is that can we use this command in such a way that we want to cascade a fir filter with iir filter?

Answer 1

[Arjun]

Hi @ABTJ,

In MATLAB, the command "dfilt.cascade" is used to return cascade of discrete-time filters.

You can read more about it in the documentation link attached: https://www.mathworks.com/help/signal/ref/dfilt.cascade.html

Since Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) filters are types of discrete-time filters, the "dfilt.cascade" command can be used to connect them in series.

I hope this helps!