中国物理B ›› 2020, Vol. 29 ›› Issue (9): 90502-090502.doi: 10.1088/1674-1056/aba60f

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A novel method of constructing high-dimensional digital chaotic systems on finite-state automata

Jun Zheng(郑俊), Han-Ping Hu(胡汉平)   

  1. 1 School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China;
    2 Key Laboratory of Image Information Processing and Intelligent Control, Ministry of Education, Wuhan 430074, China
  • 收稿日期:2020-05-18 修回日期:2020-07-07 接受日期:2020-07-15 出版日期:2020-09-05 发布日期:2020-09-05
  • 通讯作者: Han-Ping Hu E-mail:husthhh@qq.com
  • 基金资助:
    Project supported by the National Key R&D Program of China (Grant No. 2017YFB0802000) and the Cryptography Theoretical Research of National Cryptography Development Fund, China (Grant No. MMJJ20170109).

A novel method of constructing high-dimensional digital chaotic systems on finite-state automata

Jun Zheng(郑俊)1, Han-Ping Hu(胡汉平)1,2   

  1. 1 School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China;
    2 Key Laboratory of Image Information Processing and Intelligent Control, Ministry of Education, Wuhan 430074, China
  • Received:2020-05-18 Revised:2020-07-07 Accepted:2020-07-15 Online:2020-09-05 Published:2020-09-05
  • Contact: Han-Ping Hu E-mail:husthhh@qq.com
  • Supported by:
    Project supported by the National Key R&D Program of China (Grant No. 2017YFB0802000) and the Cryptography Theoretical Research of National Cryptography Development Fund, China (Grant No. MMJJ20170109).

摘要: When chaotic systems are implemented on finite precision machines, it will lead to the problem of dynamical degradation. Aiming at this problem, most previous related works have been proposed to improve the dynamical degradation of low-dimensional chaotic maps. This paper presents a novel method to construct high-dimensional digital chaotic systems in the domain of finite computing precision. The model is proposed by coupling a high-dimensional digital system with a continuous chaotic system. A rigorous proof is given that the controlled digital system is chaotic in the sense of Devaney's definition of chaos. Numerical experimental results for different high-dimensional digital systems indicate that the proposed method can overcome the degradation problem and construct high-dimensional digital chaos with complicated dynamical properties. Based on the construction method, a kind of pseudorandom number generator (PRNG) is also proposed as an application.

关键词: high-dimensional digital chaotic system, dynamical degradation, anti-control, pseudorandom number generator

Abstract: When chaotic systems are implemented on finite precision machines, it will lead to the problem of dynamical degradation. Aiming at this problem, most previous related works have been proposed to improve the dynamical degradation of low-dimensional chaotic maps. This paper presents a novel method to construct high-dimensional digital chaotic systems in the domain of finite computing precision. The model is proposed by coupling a high-dimensional digital system with a continuous chaotic system. A rigorous proof is given that the controlled digital system is chaotic in the sense of Devaney's definition of chaos. Numerical experimental results for different high-dimensional digital systems indicate that the proposed method can overcome the degradation problem and construct high-dimensional digital chaos with complicated dynamical properties. Based on the construction method, a kind of pseudorandom number generator (PRNG) is also proposed as an application.

Key words: high-dimensional digital chaotic system, dynamical degradation, anti-control, pseudorandom number generator

中图分类号:  (Fluctuation phenomena, random processes, noise, and Brownian motion)

  • 05.40.-a
05.45.Gg (Control of chaos, applications of chaos) 05.45.Jn (High-dimensional chaos) 05.45.Vx (Communication using chaos)