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Event-based H∞ filtering for sampled-data systems
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DOI：10.1016/j.automatica.2014.10.092.png)
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This paper is concerned with event-based H-infinity filtering for sampled-data systems. First, an event-based data packet processor is introduced to release sampled measurement outputs only if an event condition is violated. As a result, communication resources can be saved significantly while preserving the desired H-infinity performance. Second, the resulting filtering error system is modeled as a system with an interval time-varying delay. By employing the Lyapunov-Krasovskii functional approach, a new bounded real lemma (BRL) is established such that the filtering error system is asymptotically stable with the prescribed H-infinity performance. Third, by performing an invertible linear transformation on the filtering error system, a linear matrix inequality WO-based sufficient condition, which is equivalent to the condition in the BRL, is obtained on the feasibility of the event-based H-infinity, filtering problem. Consequently, suitable H-infinity, filters and the event parameters in the event condition can be co-designed provided that a set of LMIs are satisfied. Finally, a mechanical system with two masses and two springs is given to show the effectiveness of the proposed method. (C) 2014 Elsevier Ltd. All rights reserved.
Keyword:
Sampled-data system
H-infinity filter
Event-triggering scheme
Data packet processor
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5.9
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1.2W
被引数:
5.2W
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