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		Qing SHEN,Weihua GUI,Ying XIONG,Chunhua YANG.[en_title][J].Control Theory and Technology,2010,8(2):239~244.[Copy]

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QingSHEN,WeihuaGUI,YingXIONG,ChunhuaYANG
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DOI：10.1007/s11768-010-7277-1

Received:December 21, 2007Revised:March 11, 2009

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Predictive control and scheduling codesign in network control systems

Qing SHEN,Weihua GUI,Ying XIONG,Chunhua YANG

(School of Basic Education for Officers, National University of Defense Technology;School of Information Science and Engineering, Central South University)

Abstract:

A codesign approach combining predictive control compensation and network scheduling is presented in this paper to overcome the adverse influences of stochastic time delays and packet losses encountered in network-based real-time control systems. The state estimation and control prediction compensation algorithms are used for the random network delays in the feedback and forward channels, and the stability criteria are analyzed. The proper sampling rate is given with network scheduling to meet the desired system performance, while the network-induced delay is tolerated. Simulations show that the codesign approach works well with the bounded network delay.

Key words: Network control system Prediction Scheduling Stability