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A method of improving the properties of digital chaotic system

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  • Hu, Hanping
  • Xu, Ya
  • Zhu, Ziqi

Abstract

To weaken the degradation phenomenon of digital chaotic systems with finite computing precision, the paper brings forward a varying parameter compensation method (VPCM) on the basis of the Lyapunov number. According to the differential mean-value theorem, the proposed method employs the varying parameter and Lyapunov number to improve the properties of digital chaotic systems with finite computing precision. Results of the experiments demonstrate that: the method prolongs the cycle length greatly, the digital chaotic systems achieve ergodicity in finite precision, and the distribution of digital chaotic sequences (DCSs) approximates that of real chaotic sequences (RCSs). This method can be applied to the fields of chaotic cryptography and broad spectrum communications.

Suggested Citation

  • Hu, Hanping & Xu, Ya & Zhu, Ziqi, 2008. "A method of improving the properties of digital chaotic system," Chaos, Solitons & Fractals, Elsevier, vol. 38(2), pages 439-446.
    • Handle: RePEc:eee:chsofr:v:38:y:2008:i:2:p:439-446
    DOI: 10.1016/j.chaos.2006.11.027
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    References listed on IDEAS

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    1. Chee, Chin Yi & Xu, Daolin, 2005. "Secure digital communication using controlled projective synchronisation of chaos," Chaos, Solitons & Fractals, Elsevier, vol. 23(3), pages 1063-1070.
    2. Chien, Tsun-I & Liao, Teh-Lu, 2005. "Design of secure digital communication systems using chaotic modulation, cryptography and chaotic synchronization," Chaos, Solitons & Fractals, Elsevier, vol. 24(1), pages 241-255.
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    Cited by:

    1. Fan, Chunlei & Ding, Qun, 2023. "Design and geometric control of polynomial chaotic maps with any desired positive Lyapunov exponents," Chaos, Solitons & Fractals, Elsevier, vol. 169(C).
    2. Zheng, Jun & Hu, Hanping & Ming, Hao & Liu, Xiaohui, 2020. "Theoretical design and circuit implementation of novel digital chaotic systems via hybrid control," Chaos, Solitons & Fractals, Elsevier, vol. 138(C).
    3. Chunlei Fan & Qun Ding, 2019. "Effects of Limited Computational Precision on the Discrete Chaotic Sequences and the Design of Related Solutions," Complexity, Hindawi, vol. 2019, pages 1-10, January.
    4. Zheng, Jun & Hu, Hanping & Ming, Hao & Zhang, Yanxia, 2021. "Design of a hybrid model for construction of digital chaos and local synchronization," Applied Mathematics and Computation, Elsevier, vol. 392(C).

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