Asymmetrical novel hyperchaotic system with two exponential functions and an application to image encryption

Abstract

In this article, asymmetrical novel system with two exponential functions, which can show hyperchaotic behavior, has been proposed. Although new system possesses only one unstable equilibrium. The dynamical behaviors of such system are discovered by computing the Lyapunov exponents and bifurcation diagram. Furthermore, the synchronization of the proposed system are also presented by an adaptive synchronization approach of two identical hyperchaotic systems. An application to image encryption has been obtained.

Keywords

• hyperchaotic systems
• asymmetrical systems
• ultimate bound
• sigmoid function
• adaptive synchronization
• hidden attractor