Analysis and Implementation of a New Switching Memristor Scroll Hyperchaotic System and Application in Secure Communication

Abstract

This paper proposed a novel switching scroll hyperchaotic system based on a memristor device and explored its application to secure communication. The new system could be switched between the double‐scroll chaotic system and multiscroll one by switch S 1 and switch S 2. We gave the construction process of the novel system, its numerical simulations, and dynamical properties, firstly. Moreover, the memristive circuit implementation of the new switching system was presented and the results were also in agreement with those of numerical simulation. Finally, the new switching memristive system was applied to secure communication by means of the drive‐response synchronization with chaotic masking. When the voice signal is a rising waveform, it is encrypted by the double‐scroll memristive system. When the voice signal is a falling waveform, the multiscroll memristive system works. The voice signal is completely submerged in the chaotic signal and could not be distinguished at all. Security analyses show that it is a successful application to secure communication.