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We consider a reference governor placed inside a control loop. This inner-loop reference governor modifies the tracking error and not the reference command as in the case of the conventional, outer-loop reference governor. We derive conditions under which the reference governor is passive or exhibits a small lack of passivity. Utilizing these properties, we design an inner-loop reference governor...
In applications involving time-varying systems, the state dynamics matrix is often not known in advance. To address this problem, this paper investigates the effectiveness of a forward-in-time Riccati-based control law. This approach is motivated by the fact that the optimal state estimator is based on a forward-in-time Riccati-based solution that does not require advance knowledge of the system dynamics...
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