%0 Electronic Article
%A M.G. Safonov
%K singular value theory
%K scaling factors
%K diagonally perturbed multivariable feedback systems
%K Perron-Frobenius nonnegative matrix results
%K stability margin
%K conservativeness
%X For diagonally perturbed linear time-invariant multivariable feedback systems, the problem of finding an improved characterisation of the stability margin is examined. A readily computable lower bound for diagonally perturbed systems is developed using Perron-Frobenius non-negative matrix results. The present theory improves upon the existing singular-value stability-margin theory, providing a simple constructive method for determining previously unspecified norm weighting parameters (i.e. scaling factors) so as to minimise the conservativeness of stability-margin bounds.
%@ 0143-7054
%T Stability margins of diagonally perturbed multivariable feedback systems
%B IEE Proceedings D (Control Theory and Applications)
%D November 1982
%V 129
%N 6
%P 251-256
%I
%U https://digital-library.theiet.org/;jsessionid=1y8b95ml6uan0.x-iet-live-01content/journals/10.1049/ip-d.1982.0054
%G EN