The realization of FIR filter by frequency sampling realization can be viewed as cascade of how many filters?
A. Two
B. Three
C. Four
D. None of the mentioned
Answer:A
The realization of FIR filter by frequency sampling realization can be viewed as cascade of how many filters?
A. Two B. Three C. Four D. None of the mentioned
Explanation: In frequency sampling realization, the system function H(z) is characterized by the set of frequency samples {H(k+ α)} instead of {h(n)}. We view this FIR filter realization as a cascade of two filters. One is an all-zero or a comb filter and the other consists of parallel bank of single pole filters with resonant frequencies.