Properties of FIR filter

Question

Explain some of the properties of FIR filter? Specify the condition upon the FIR sequence h (n) which are to be imposed and order that this filter is termed as the liner phase filter?

Answer 1

Properties of the FIR filter:

a) FIR filter is considered as stable.

b) A realizable filter may always be attained.

c) FIR filter has the linear phase response.

The conditions include:

a) Symmetric condition h (n) =h (N-1-n).

b) Anti-symmetric condition h (n) =-h (N-1-n).