Journal
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
Volume 45, Issue 9, Pages 5234-5248Publisher
WILEY
DOI: 10.1002/mma.8103
Keywords
bilateral packet dropouts; dynamic output feedback controller; event-triggered control; networked control systems
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Funding
- National Natural Science Foundation of China [61573069]
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This paper investigates the output-based event-triggered control problem of discrete-time networked control systems subject to bilateral packet dropouts. The NCS is converted into a closed-loop stochastic parameter system considering the stochastic sequences of packet dropouts. Sufficient conditions are derived using a Lyapunov functional based on stochastic variables to guarantee the exponentially mean-square stability. An improved iterative algorithm is proposed to obtain the output-based control law and event-triggering parameters.
In this paper, an output-based event-triggered control problem of discrete-time networked control systems (NCSs) subject to bilateral packet dropouts is investigated. In view of stochastic sequences of packet dropouts in the measurement channels (from sensors to controller) and the control channels (from controller to actuators), the NCS is converted into a closed-loop stochastic parameter system. In the aid of a Lyapunov functional based on stochastic variables, the sufficient conditions on design of a dynamic output feedback control law and bilateral event-triggering conditions are derived to guarantee the exponentially mean-square stability for NCSs. Furthermore, an improved iterative algorithm is given to obtain the output-based control law and event-triggering parameters from a set of nonconvex inequalities. Finally, a numerical example and the corresponding simulation results are given to illustrate the validity and applicability of the developed techniques.
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