摘要: For diagonally perturbed linear time-invariant multivariable feedback systems, the problem of finding an improved characterisation stability margin is examined. A readily computable lower bound for systems developed using Perron-Frobenius non-negative matrix results. The present theory improves upon existing singular-value stability-margin theory, providing a simple constructive method determining previously unspecified norm weighting parameters (i.e. scaling factors) so as to minimise conservativeness bounds.
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