Synchronization of the unified chaotic system via the exponential observer

摘要

The concept of exponential synchronization is introduced and chaos synchronization of the unified chaotic system using the exponential observer is investigated in this paper. Based on the time-domain method, a proper state observer for the unified chaotic system is designed to ensure the global exponential stability of the synchronization error system. The exponential convergence rate can be given as any positive constant in advance. Numerical results show the effectiveness of the proposed scheme.