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Delay-dependent decentralized H filtering for uncertain interconnected systems

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3 Author(s)
Chen Ning ; School of Information Science and Engineering, Central South Univ., Changsha 410083, P. R. China ; Gui Weihua ; Zhang Xiaofeng

This article considers delay dependent decentralized H filtering for a class of uncertain interconnected systems, where the uncertainties are assumed to be time varying and satisfy the norm-bounded conditions. First, combining the Lyapunov-Krasovskii functional approach and the delay integral inequality of matrices, a sufficient condition of the existence of the robust decentralized H filter is derived, which makes the error systems asymptotically stable and satisfies the H norm of the transfer function from noise input to error output less than the specified up-bound on the basis of the form of uncertainties. Then, the above sufficient condition is transformed to a system of easily solvable LMIs via a series of equivalent transformation. Finally, the numerical simulation shows the efficiency of the main results.

Published in:

Journal of Systems Engineering and Electronics  (Volume:19 ,  Issue: 4 )