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Event-driven observer-based output feedback control for linear systems
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DOI：10.1016/j.automatica.2014.04.026.png)
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Abstract
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This paper concerns the problem of event-driven observer-based output feedback control of linear systems. Contrary to normal sampled-data control systems, where the controller is updated periodically, in event-driven systems, it is updated only when an event happens, and a typical event is defined as some error signals exceeding a given threshold. Both continuous- and discrete-time event detector cases are considered. It is shown that even with the significantly reduced sampling frequency, the global uniform ultimate boundedness of the event-driven closed-loop systems can also be guaranteed. A numerical example is finally used to illustrate the effectiveness and advantages of the proposed approaches. (C) 2014 Elsevier Ltd. All rights reserved.
Keywords:
Event-driven control
Observers
Sampled-data control
Networked control systems (NCSs)
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