Lag synchronization of chaotic Lur’e systems via replacing variables control. (English) Zbl 1079.93019

Summary: In this paper, we propose a method to research lag synchronization of the identical master-slave chaotic Lur’e systems via replacing variables control with time delay. By means of absolute stability theory, we prove two types of sufficient conditions for the lag synchronization: Lur’e criterion and frequency domain criterion. Based on the criteria, we suggest an optimization scheme to design the control variables. Applying the scheme to general Chua’s circuits, we obtain the parameter ranges in which the master-slave Chua’s circuits laggingly synchronize or not by varied single-variable control. Finally, we cite the examples by illustration of the results.


93B52 Feedback control
37D45 Strange attractors, chaotic dynamics of systems with hyperbolic behavior
94C05 Analytic circuit theory
37N35 Dynamical systems in control
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