If the filter has anti-symmetric unit sample response with M odd, then what is the value of Q(ω)?
(a) cos(ω/2)
(b) sin(ω/2)
(c) 1
(d) sinω
I have been asked this question in an internship interview.
Question is taken from Design of Optimum Equi Ripple Linear Phase FIR Filters topic in portion Digital Filters Design of Digital Signal Processing