IEEE Control Systems Letters · 2019 · 110 citations · 10 references
Natural SciencesMathematicsSystems EngineeringData-driven DesignDynamical SystemsSystem DynamicsControl Of Dynamical SystemsControl SystemsControl TheoryController DesignDissipative SystemsRobust ControlDissipationDissipative DynamicsDissipativityLinear Time-invariant SystemsLyapunov FunctionsRobust StabilizationRobustness AnalysisStability Verification
Due to their relevance in controller design and robustness analysis, we present a novel framework to find and verify dissipativity properties for discrete-time linear time-invariant systems from only one input-output trajectory. Introducing a new data-driven formulation for dissipativity, we obtain necessary and sufficient conditions for dissipativity based only on a definiteness condition on a single data-dependent matrix. Furthermore, we provide a promising relaxation in the case of measurement noise, which, as illustrated in numerous numerical examples, works remarkably well.
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A note on persistency of excitation
Jan C. Willems, Paolo Rapisarda, Ivan Markovsky et al. · Systems & Control Letters · 2004 · 1K citations