Question

In the frequency sampling method for FIR filter design, we specify the desired frequency response Hd(ω) at a set of equally spaced frequencies.

(a) True

(b) False

The question was asked during an internship interview.

The question is from Design of Linear Phase FIR Filters by Frequency Sampling Method topic in portion Digital Filters Design of Digital Signal Processing

Answer 1

The correct option is (a) True

To elaborate: In the frequency sampling method, we specify the frequency response Hd(ω) at a set of equally spaced frequencies, namely ωk=\(\frac{2π}{M}(k+\alpha)\)