Adaptive synchronization of coupled chaotic Chen Liao system via active control

Chaotic Chen_Liao's attractor, which was derived from a general model of nonlinear systems with distributed delays, was recently reported and proved. We propose an adaptive synchronization controller and an update law, which can make the states of two identical Chen _ Liao systems globally asymptotically synchronized in the presence of system's unknown constant parameters. The effectiveness of our scheme is illustrated by a series of computer simulations.