Robust adaptive synchronization of dynamical networks via scalar controllers

Based on high gain feedback control theory, robust adaptive synchronization of dynamical network is investigated in this paper. When the non-linear coupling functions are unknown but with unknown bounded, some fairly simple robust adaptive scalar feedback controllers are derived. The key idea is that a time-varying gain parameter is introduced ill designing controllers which call guarantee that the states of uncertain coupled dynamical networks robust adaptive asymptotically synchronize with each other, Numerical simulation is given to validate the proposed theoretical result. (C) 2009 Elsevier B.V. All rights reserved.This project is supported by the National Natural Science Foundation of China with No. 70671079, and supported by the Korea Foundation for Advanced Studies. We are very grateful to the reviewers' comments, which are very helpful in the revision of the paper