Simple method for enlarging positive LE and accelerating calculation speed of chaotic system
Positive Lyapunov exponent (LE) is vital to identify a dynamical system being chaotic or hyperchaotic. A simple method that the right-hand side of differential equations which can be used to describe the chaotic system, is multiplied by a constant value, is proposed. From the proposed method, it can not only enlarge the positive LE of chaotic or hyperchaotic systems, but also accelerate their calculation speed. Sprott C chaotic system is selected as an example to show its effectiveness. Finally, an electronic circuit model for Sprott C chaotic system is designed and some experimental results are presented for confirmation.