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Discrete Dynamics in Nature and Society
Volume 2014, Article ID 587323, 10 pages
Research Article

ILC Design for Discrete Linear Systems with Packet Dropouts and Iteration-Varying Disturbances

1School of Electrical Engineering & Automation, Henan Polytechnic University, Jiaozuo 454003, China
2Henan Provincial Open Lab for Control Engineering Key Discipline, Henan Polytechnic University, Jiaozuo 454003, China

Received 22 February 2014; Accepted 22 May 2014; Published 9 June 2014

Academic Editor: Wenwu Yu

Copyright © 2014 Bu Xuhui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An iterative learning controller is designed for networked systems with intermittent measurements and iteration-varying disturbances. By modeling the measurement dropout as a stochastic variable satisfying the Bernoulli random binary distribution, the design can be transformed into control of a 2D stochastic system described by Roesser model. A sufficient condition for mean-square asymptotic stability and disturbance attenuation performance for such 2D stochastic system is established by means of linear matrix inequality (LMI) technique, and formulas can be given for the control law design simultaneously. A numerical example is given to illustrate the effectiveness of the proposed results.