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Secure communication via active backstepping control of chaotic systems

In this paper, an active backstepping design is proposed to achieve control and synchronization of a chaotic system and applied to secure communication. The proposed method is a systematic design approach and exists in a recursive procedure that interlaces the choice of a Lyapunov function with the design of the active control. The proposed controller enables synchronization of a hyperchaotic system. Numerical simulations illustrate the validity of the proposed control technique.