FIR Filter Design using FSM

Frequency sampling is the another method of FIR filter design.In this method desired frequency response Hd(w) is sampled at discrete values of frequency to obtain H(k).The final output sequence h[n] is obtained by Inverse Discrete Fourier Transform (IDFT) method.The final output sequence is always symmetric about the point N/2 which called Point of Symmetry.Computational efficiency is increased as signal is decomposed which makes calculation more faster.