中国物理B ›› 2008, Vol. 17 ›› Issue (11): 4022-4026.doi: 10.1088/1674-1056/17/11/014

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New robust chaotic system with exponential quadratic term

刘 中1, 李春彪2, 包伯成3, 许建平4   

  1. (1)Department of Electronic Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; (2)Department of Electronic Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Jiangsu Institute of Economic {\& Trade Technology, Nanjing 210007, China; (3)Department of Electronic Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;School of Electrical and Information Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China; (4)School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • 收稿日期:2008-02-29 修回日期:2008-03-19 出版日期:2008-11-20 发布日期:2008-11-20

New robust chaotic system with exponential quadratic term

Bao Bo-Cheng(包伯成)ab, Li Chun-Biao (李春彪)acXu Jian-Ping(许建平)d, Liu Zhong(刘中)a   

  1. a Department of Electronic Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; b School of Electrical and Information Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China; c Jiangsu Institute of Economic & Trade Technology, Nanjing 210007, China; d School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2008-02-29 Revised:2008-03-19 Online:2008-11-20 Published:2008-11-20

摘要: This paper proposes a new robust chaotic system of three-dimensional quadratic autonomous ordinary differential equations by introducing an exponential quadratic term. This system can display a double-scroll chaotic attractor with only two equilibria, and can be found to be robust chaotic in a very wide parameter domain with positive maximum Lyapunov exponent. Some basic dynamical properties and chaotic behaviour of novel attractor are studied. By numerical simulation, this paper verifies that the three-dimensional system can also evolve into periodic and chaotic behaviours by a constant controller.

关键词: attractor, chaotic system, exponential quadratic term, constant controller

Abstract: This paper proposes a new robust chaotic system of three-dimensional quadratic autonomous ordinary differential equations by introducing an exponential quadratic term. This system can display a double-scroll chaotic attractor with only two equilibria, and can be found to be robust chaotic in a very wide parameter domain with positive maximum Lyapunov exponent. Some basic dynamical properties and chaotic behaviour of novel attractor are studied. By numerical simulation, this paper verifies that the three-dimensional system can also evolve into periodic and chaotic behaviours by a constant controller.

Key words: attractor, chaotic system, exponential quadratic term, constant controller

中图分类号:  (Numerical simulations of chaotic systems)

  • 05.45.Pq
02.30.Jr (Partial differential equations) 05.45.Gg (Control of chaos, applications of chaos)