Abstract
This paper investigates the design of active feedback controllers for achieving generalized projective synchronization (GPS) of hyperchaotic systems viz. identical hyperchaotic Qi systems (Chen, Yang, Qi and Yuan, 2007), and non-identical hyperchaotic Lorenz system (Jia, 2007) and hyperchaotic Qi system. Lyapunov stability theory has been used to establish the synchronization results (GPS) derived in this paper using active feedback control. Since the Lyapunov exponents are not required for these calculations, the active feedback control method is very effective and convenient for achieving the general projective synchronization (GPS) of hyperchaotic Qi and hyperchaotic Lorenz systems. Numerical simulations are presented to demonstrate the effectiveness of the synchronization results derived in this paper.
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