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自动化学报 1992
The Relation Between Robust Stability and Robust Diagonal Dominance
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Abstract:
This paper is concerned with the relationship between robust stabilky and robust diagonal dominance for MIMO systems. It is shown that a system can be robust diagonal dominance under some robust stability conditions, and a general conclusion that robust dlagonsl dominance is a sufficient condition for robust stability is derived. The results of this paper can be used to estimate the maximum bounds of allowable perturbations, including upper 'bounds of the norms for unstructured perturbation and moduli of elements of perturbation matrix for structured perturbation. The result of robust diagonal dominance guaranteeing robust stability in this paper is less conservative.