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Observer-based sampled-data control for networked systems with consecutive packet dropouts
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DOI：10.1002/rnc.6907.png)
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Abstract
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This paper investigates the observer-based sampled-data control problem for networked systems with consecutive packet dropouts. A new consecutive packet dropout model is established to describe the phenomenon of packet dropout in both the sensor-controller (S-C) and controller-actuator (C-A) channels. First, the considered system with observer-based control scheme is studied in the discrete-time domain by using equivalent discretization transformation. In order to simplify subsequent analysis, matrix exponential computation is employed to transform the discrete-time system into a more tractable form. Then, the proposed new consecutive packet dropout model is taken into consideration to establish the stochastic mean square exponential stability condition. Furthermore, a novel two-step synthesis approach is used to design the observer-based controller. Finally, the effectiveness of the proposed observer-based sampled-data control approach is verified using a numerical example. In addition, the advantages of the proposed approach are validated through comparisons.
Keywords:
consecutive packet dropouts
controller design
observer-based control
sampled-data systems
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