A research on adaptive control to stabilize and synchronize a hyperchaotic system with uncertain parameters
DOI:
https://doi.org/10.11121/ijocta.01.2015.00238Keywords:
Adaptive control, chaos stabilization, synchronization, Lyapunov stability theory, hyperchaotic systemAbstract
This paper addresses the chaos control and synchronization problems of a hyperchaotic system. It is assumed that the parameters of the hyperchaotic system are unknown and the system is perturbed by the external disturbance. Based on the Lyapunov stability theory and the adaptive control theory, suitable nonlinear controllers are designed for the asymptotic stability of the closed-loop system both for stabilization of hyperchaos at the origin and complete synchronization of two identical hyperchaotic systems. Accordingly, suitable update laws are proposed to estimate the fully uncertain parameters. All simulation results are carried out to validate the effectiveness of the theoretical findings. The effect of external disturbance is under our discussion.Downloads
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