Non minimum phase transfer function

1. What is non-minimum phase transfer function?
2. What is a non-minimum phase zero?
3. What causes non-minimum phase?
4. What is minimum transfer function?

What is non-minimum phase transfer function?

Non-minimum phase system: It is a system in which some of the poles and zeros may lie on the right side of the s-plane. In particular, zeros lie on the right side of the s-plane.

What is a non-minimum phase zero?

In general, each zero blocks a specific input signal multiplied by an arbitrary constant. In the case of a non- minimum-phase zero, that is, an open-right-half-plane zero, the blocked signal is unbounded.

What causes non-minimum phase?

👉 Non-minimum Phase systems are causal and stable systems whose inverses are causal but unstable (see Wikipedia 2020-08-08). Having a delay in our system or a model zero on the right half of the *s*−plane (aka Right-Half Plane or RHP) may lead to a non-minimum phase system.

What is minimum transfer function?

1.5 Minimum Phase System

A transfer function G(s) is minimum phase if both G(s) and 1/G(s) are causal and stable. Roughly speaking it means that the system does not have zeros or poles on the right-half plane. Moreover, it does not have delay.