中国物理B ›› 2010, Vol. 19 ›› Issue (3): 30509-030509.doi: 10.1088/1674-1056/19/3/030509

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Nonlinear feedback control of a novel hyperchaotic system and its circuit implementation

汪浩祥, 蔡国梁, 缪盛, 田立新   

  1. Nonlinear Scientific Research Center, Jiangsu University, Zhenjiang 212013, China
  • 收稿日期:2009-08-07 修回日期:2009-08-24 出版日期:2010-03-15 发布日期:2010-03-15
  • 基金资助:
    Project supported by the National Natural Science Foundations of China (Grant Nos.~70571030 and 90610031), the Society Science Foundation from Ministry of Education of China (Grant No.~08JA790057) and the Advanced Talents' Foundation and Student's Foundation of Jiangsu University (Grant Nos.~07JDG054 and 07A075).

Nonlinear feedback control of a novel hyperchaotic system and its circuit implementation

Wang Hao-Xiang(汪浩祥), Cai Guo-Liang(蔡国梁), Miao Sheng(缪盛), and Tian Li-Xin(田立新)   

  1. Nonlinear Scientific Research Center, Jiangsu University, Zhenjiang 212013, China
  • Received:2009-08-07 Revised:2009-08-24 Online:2010-03-15 Published:2010-03-15
  • Supported by:
    Project supported by the National Natural Science Foundations of China (Grant Nos.~70571030 and 90610031), the Society Science Foundation from Ministry of Education of China (Grant No.~08JA790057) and the Advanced Talents' Foundation and Student's Foundation of Jiangsu University (Grant Nos.~07JDG054 and 07A075).

摘要: This paper reports a new hyperchaotic system by adding an additional state variable into a three-dimensional chaotic dynamical system. Some of its basic dynamical properties, such as the hyperchaotic attractor, Lyapunov exponents, bifurcation diagram and the hyperchaotic attractor evolving into periodic, quasi-periodic dynamical behaviours by varying parameter k are studied. An effective nonlinear feedback control method is used to suppress hyperchaos to unstable equilibrium. Furthermore, a circuit is designed to realize this new hyperchaotic system by electronic workbench (EWB). Numerical simulations are presented to show these results.

Abstract: This paper reports a new hyperchaotic system by adding an additional state variable into a three-dimensional chaotic dynamical system. Some of its basic dynamical properties, such as the hyperchaotic attractor, Lyapunov exponents, bifurcation diagram and the hyperchaotic attractor evolving into periodic, quasi-periodic dynamical behaviours by varying parameter k are studied. An effective nonlinear feedback control method is used to suppress hyperchaos to unstable equilibrium. Furthermore, a circuit is designed to realize this new hyperchaotic system by electronic workbench (EWB). Numerical simulations are presented to show these results.

Key words: hyperchaos, nonlinear feedback control, Lyapunov exponents, chaos circuit

中图分类号:  (Control of chaos, applications of chaos)

  • 05.45.Gg
05.45.Pq (Numerical simulations of chaotic systems) 02.30.Oz (Bifurcation theory) 84.30.Bv (Circuit theory) 02.30.Yy (Control theory)