If s=σ+jΩ and z=re^jω and r=1, then which of the following inference is correct?
(a) LHS of the s-plane is mapped inside the circle, |z|=1
(b) RHS of the s-plane is mapped outside the circle, |z|=1
(c) Imaginary axis in the s-plane is mapped to the circle, |z|=1
(d) None of the mentioned
This question was addressed to me in final exam.
My question is based upon Bilinear Transformations in division Digital Filters Design of Digital Signal Processing