Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 1 (Q.No. 14)
14.
If transfer function of a system is H(z) = 6 + z-1 + z-2 then system is
minimun phase
maximum phase
mixed phase
none
Answer: Option
Explanation:

H(z) = 6 + z-1 - z-2, solve it by considering H(z) = 0 z = 1/3, -1/2 in H(z) only numerator.

Hence z = 1/3, - 1/2 will be zero, and if zero lies inside the unit circle, system will be of minimum phase.

Discussion:
2 comments Page 1 of 1.

Akshay Dangat said:   8 years ago
Please give the detailed explanation.

Gsb said:   8 years ago
How did -z^2 come from in given H(z)?

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