Stability robustness of two-dimensional discrete systems and its computation

Using the stability criterion of R.A. DeCarlo et al. (1977), a previously proposed measure of stability robustness is extended to the two-dimensional case. An easy-to-use linear algebra type algorithm is developed to accomplish the numerical computation of the proposed robustness measure. In the Roesser's local state-space setting, the measure provides a least conservative upper bound for system's stable perturbations.<
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