Question

This mapping is restricted to the design of low pass filters and band pass filters having relatively small resonant frequencies.

(a) True

(b) False

This question was posed to me in homework.

Question is from IIR Filter Design by Approximation of Derivatives topic in section Digital Filters Design of Digital Signal Processing

Answer 1

Right answer is (a) True

Easy explanation: The possible location of poles of the digital filter are confined to relatively small frequencies and as a consequence, the mapping is restricted to the design of low pass filters and band pass filters having relatively small resonant frequencies.