期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 62, 期 7, 页码 3524-3531出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2016.2614486
关键词
Event-triggered control; mean-square consensus; multi-agent systems; sensor saturations; time-varying systems
资金
- Royal Society of the U.K.
- National Natural Science Foundation of China [61304010, 61329301]
- Natural Science Foundation of Jiangsu Province [BK20130766]
- Postdoctoral Science Foundation of China [2014M551598]
- International Postdoctoral Exchange Fellowship from the China Postdoctoral Council
- Fundamental Research Funds for the Central Universities [30916011337]
- Alexander von Humboldt Foundation of Germany
In this technical note, the consensus control problem is investigated for a class of discrete time-varying stochastic multi-agent system subject to sensor saturations. An event-based mechanism is adopted where each agent updates the control input signal only when the pre-specified triggering condition is violated. To reflect the time-varying manner and characterize the transient consensus behavior, a new index for mean-square consensus is put forward to quantify the deviation level from individual agent to the average value of all agents' states. For a fixed network topology, the aim of the proposed problem is to design time-varying output-feedback controllers such that, at each time step, the mean-square consensus index of the closed-loop multi-agent system satisfies the pre-specified upper bound constraints subject to certain triggering mechanism. Both the existence conditions and the explicit expression of the desired controllers are established by resorting to the solutions to a set of recursive matrix inequalities. An illustrative simulation example is utilized to demonstrate the usefulness of the proposed algorithms.
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