Synchronization for unified chaotic systems with noise-disturbed parameters by sliding mode control

In this paper,the active sliding mode control method is utilized to study the synchronization for unified chaotic systems with noise-disturbed parameters.Some novel results about the suitable sliding mode surface and the synchronizing control law are derived,which avoid the mistake inequality sC △Ae≤‖△A‖∞sCein Ref.[Chaos,Solitons Fractals 21(2004) 1249].Finally,numerical simulations are included to show the correctness of our results and the effectiveness of the developed approach.