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| DOI：10.1007/s11768-010-0049-0 |
| Received:February 26, 2010Revised:February 26, 2010 |
| 基金项目:This work was supported by the Defence Science Organisation-National Laboratories (DSO-NL), Singapore (No.DSOCL06184). |
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| Observer-based H-infinity control in multiple channel networked control systems with random packet dropouts |
| Weiwei CHE,Jianliang WANG,Guanghong YANG |
| (Nanyang Technological University;Northeastern University) |
| Abstract: |
| This paper investigates the observer-based $H_{\infty}$ control
problem for networked control systems (NCSs) with random packet
dropouts. A general packet dropout model with multiple independent
stochastic variables in multiple channels case is adopted to
describe the data missing in the limited communication channels.
With the consideration of the sensor-to-controller and
controller-to-actuator packet dropouts at the same time, a new
method is proposed based on a separation lemma to design an
observer-based $H_{\infty}$ controller, which exponentially
stabilizes the closed-loop system in the sense of
mean square and also achieves a prescribed $H_{\infty}$
disturbance attenuation level. A numerical example is given to illustrate the effectiveness of the proposed control
method. |
| Key words: Networked control system (NCS) H-infinity control Separation lemma Random packet dropouts LMI |
