Robust pole assignment and optimal stability margins

Nichols, N. ORCID: https://orcid.org/0000-0003-1133-5220 and van Dooren, P. (1984) Robust pole assignment and optimal stability margins. Electronics Letters, 20 (16). pp. 660-661. ISSN 0013-5194 doi: 10.1049/el:19840452

Abstract/Summary

A robust pole assignment by linear state feedback is achieved in state-space representation by selecting a feedback which minimises the conditioning of the assigned eigenvalues of the closed-loop system. It is shown here that when this conditioning is minimised, a lower bound on the stability margin in the frequency domain is maximised.