Question

What should be the value of λ for the error to be placed entirely on delay?

(a) 1

(b) 1/2

(c) 0

(d) None of the mentioned

I got this question by my college director while I was bunking the class.

This is a very interesting question from Design of IIR Filters in Frequency Domain topic in portion Digital Filters Design of Digital Signal Processing

Answer 1

Right answer is (a) 1

To explain: The emphasis on the errors affecting the design may be placed entirely on the delay by taking the value of λ as 1.