On chaos and projective synchronization of a fractional difference map with no equilibria using a fuzzy-based state feedback control

Ernesto Zambrano-Serrano, Stelios Bekiros, Miguel A. Platas-Garza, Cornelio Posadas-Castillo, Praveen Agarwal, Hadi Jahanshahi and Ayman A. Aly

Physica A: Statistical Mechanics and its Applications, 2021, vol. 578, issue C

Abstract: In this paper, by considering the Caputo-like delta difference definition, a fractional difference order map with chaotic dynamics and with no equilibria is proposed. The complex dynamical behaviors associated with fractional difference order maps are analyzed employing the phase portraits, bifurcations diagrams, and Lyapunov exponents. The complexity of the sequence generated by the chaotic difference map is studied using the permutation entropy approach. Afterwards, projective synchronization of the systems is investigated. Fuzzy logic engines as intelligent schemes are strong tools for control of various systems. However, studies that apply fuzzy logic engines for control of fractional-order discrete-time systems are rare. Hence, in the current study, by taking advantages of fuzzy systems, a new controller is proposed for the fractional-order discrete-time map. The fuzzy logic engine is implemented in order to enhance the performance and agility of the proposed control technique. The stability of the closed-loop systems and asymptotic convergence of the projective synchronization error based on the proposed control scheme are proven. Finally, numerical simulations which clearly confirm that the offered control technique is able to push the states of the fractional-order discrete-time system to the desired value in a short period of time are presented.

Keywords: Fractional-order; Fractional difference order; Chaotic map; Synchronization; Permutation entropy (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:578:y:2021:i:c:s0378437121003733

DOI: 10.1016/j.physa.2021.126100

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