Synchronization of Fractional-order Chaotic Systems with Gaussian fluctuation by Sliding Mode Control

TL;DR

This paper introduces a fractional-order sliding mode control method to synchronize fractional-order chaotic systems affected by Gaussian noise, demonstrated through a Chen-Lü system case study.

Contribution

It proposes a novel fractional integral sliding surface and control technique for uncertain fractional-order systems with Gaussian fluctuations.

Findings

Effective synchronization achieved despite Gaussian noise

The proposed control method is validated through simulations

System stability and robustness are demonstrated

Abstract

This paper is devoted to the problem of synchronization between fractional-order chaotic systems with Gaussian fluctuation by the method of fractional-order sliding mode control. A fractional integral (FI) sliding surface is proposed for synchronizing the uncertain fractional-order system, and then the sliding mode control technique is carried out to realize the synchronization of the given systems. One theorem about sliding mode controller is presented to prove the proposed controller can make the system synchronize. As a case study, the presented method is applied to the fractional-order Chen-L\"u system as the drive-response dynamical system. Simulation results show a good performance of the proposed control approach in synchronizing the chaotic systems in presence of Gaussian noise.