A multi-directional controllable multi-scroll conservative chaos generator: Modelling, analysis, and FPGA implementation

doi:10.1088/1674-1056/abc239

中国物理B ›› 2021, Vol. 30 ›› Issue (2): 20505-0.doi: 10.1088/1674-1056/abc239

收稿日期:2020-09-06 修回日期:2020-10-02 接受日期:2020-10-17 出版日期:2021-01-18 发布日期:2021-01-18

A multi-directional controllable multi-scroll conservative chaos generator: Modelling, analysis, and FPGA implementation

En-Zeng Dong(董恩增)^1,†, Rong-Hao Li(李荣昊)¹, and Sheng-Zhi Du(杜升之)²

1 Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems, Tianjin University of Technology, Tianjin 300384, China; 2 Department of Electrical Engineering, Tshwane University of Technology, Pretoria 0001, South Africa

Received:2020-09-06 Revised:2020-10-02 Accepted:2020-10-17 Online:2021-01-18 Published:2021-01-18
Contact: ^†Corresponding author. E-mail: dongenzeng@163.com
Supported by:
Project supported by the Natural Science Foundation of Tianjin, China (Grant No. 18JCYBJC87700) and the Natural Science Foundation of China (Grant No. 61603274).

摘要/Abstract

Abstract: Combing with the generalized Hamiltonian system theory, by introducing a special form of sinusoidal function, a class of n-dimensional (n = 1,2,3) controllable multi-scroll conservative chaos with complicated dynamics is constructed. The dynamics characteristics including bifurcation behavior and coexistence of the system are analyzed in detail, the latter reveals abundant coexisting flows. Furthermore, the proposed system passes the NIST tests and has been implemented physically by FPGA. Compared to the multi-scroll dissipative chaos, the experimental portraits of the proposed system show better ergodicity, which have potential application value in secure communication and image encryption.

Key words: multi-directional controllable multi-scroll, conservative chaos, coexisting flows, field programmable gate array (FPGA)

中图分类号: (Nonlinear dynamics and chaos)

05.45.-a

05.45.Gg (Control of chaos, applications of chaos) 05.45.Pq (Numerical simulations of chaotic systems)

. [J]. 中国物理B, 2021, 30(2): 20505-0.

En-Zeng Dong(董恩增), Rong-Hao Li(李荣昊), and Sheng-Zhi Du(杜升之). A multi-directional controllable multi-scroll conservative chaos generator: Modelling, analysis, and FPGA implementation[J]. Chin. Phys. B, 2021, 30(2): 20505-0.

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A multi-directional controllable multi-scroll conservative chaos generator: Modelling, analysis, and FPGA implementation

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