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Mismatch effects on discrete-time poles. (English) Zbl 0666.93048

The presence of mismatch between controller and system is considered. A novel discrete-time approach is used to investigate the migration of closed-loop poles when this mismatch occurs. Two forms of state estimator are employed giving rise to several interesting features regarding stability and performance.

MSC:

93C05 Linear systems in control theory
93E10 Estimation and detection in stochastic control theory
93D15 Stabilization of systems by feedback
93C55 Discrete-time control/observation systems
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