On structured robustness analysis for feedback interconnections of unstable systems
U Jönsson, M Cantoni, CY Kao
Proceedings of the IEEE Conference on Decision and Control | Published : 2008
The purpose of this paper is to broaden the scope of integral-quadratic- constraint based structured robustness analysis in a way that accommodates feedback interconnections of unstable linear time-invariant systems. This is achieved by exploring the use of Vinnicombe's gap metric as a measure of distance. Various standard robustness analysis problems are revisited within the context of the main result. © 2008 IEEE.