On a new hyperchaotic system

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Guoyuan Qi
  • Michaël Antonie van Wyk
  • Barend Jacobus van Wyk
  • Guanrong Chen

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)124-136
Journal / PublicationPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume372
Issue number2
Publication statusPublished - 7 Jan 2008

Abstract

A new hyperchaotic system is presented, which has two large positive and one small negative Lyapunov exponent over a large range of parameters. As a consequence, system orbits strongly expand in some directions but rapidly shrink in some other directions. These strong expansions and shrinking lead the system orbits to be more disordered and random. Bifurcation and Poincaré-map analyses further show that the system has very rich bifurcations in different directions and extremely complicated dynamics overall. Spectral analysis shows that the system in the hyperchaotic mode has an extremely broad frequency bandwidth of high magnitudes, verifying its unusual random nature and indicating its great potential for some relevant engineering applications such as secure communications. © 2007 Elsevier B.V. All rights reserved.

Research Area(s)

  • Bifurcation, Chaos, Frequency spectrum, Hyperchaos, Poincaré map

Citation Format(s)

On a new hyperchaotic system. / Qi, Guoyuan; van Wyk, Michaël Antonie; van Wyk, Barend Jacobus et al.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 372, No. 2, 07.01.2008, p. 124-136.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review