Title :
A necessary and sufficient condition for stability of a perturbed system
Author :
Huang, Qiu ; Liu, R.
Author_Institution :
University of Notre Dame, Notre Dame, IN, USA
fDate :
4/1/1987 12:00:00 AM
Abstract :
The problem of determining the stability of a feedback system in the presence of perturbation is considered. A necessary and sufficient condition under which the perturbed system remains stable is obtained. This condition is very general. In particular, it does not require the perturbed plant to have the same number of poles as the nominal plant.
Keywords :
Perturbation methods; Stability, linear systems; Feedback; Polynomials; Robust stability; Stability criteria; Sufficient conditions; System performance;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1987.1104599
