Two-Dimensional Sine Chaotification System With Hardware Implementation

被引:116
作者
Hua, Zhongyun [1 ]
Zhou, Yicong [2 ]
Bao, Bocheng [3 ]
机构
[1] Harbin Inst Technol, Sch Comp Sci & Technol, Shenzhen 518055, Peoples R China
[2] Univ Macau, Dept Comp & Informat Sci, Macau 999078, Peoples R China
[3] Changzhou Univ, Sch Informat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Chaotic system; chaotification; hardware implementation; nonlinear system; random number generator; CHAOTIC SYSTEM; LYAPUNOV EXPONENTS; MODEL; SYNCHRONIZATION; ALGORITHM; DESIGN;
D O I
10.1109/TII.2019.2923553
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Chaotic systems are widely employed in many practical applications for their significant properties. Existing chaotic systems may suffer from the drawbacks of discontinuous chaotic ranges and frail chaotic behaviors. To solve this issue, this paper proposes a two-dimensional (2D) sine chaotification system (2D-SCS). 2D-SCS can not only significantly enhance the complexity of 2D chaotic maps, but also greatly extend their chaotic ranges. As examples, this paper applies 2D-SCS to two existing 2D chaotic maps to obtain two enhanced chaotic maps. Performance evaluations show that these two enhanced chaotic maps have robust chaotic behaviors in much larger chaotic ranges than existing 2D chaotic maps. A microcontroller-based experiment platform is also designed to implement these enhanced chaotic maps in hardware devices. Furthermore, to investigate the application of 2D-SCS, these two enhanced chaotic maps are applied to design a pseudorandom number generator. Experiment results show that these enhanced chaotic maps can produce better random sequences than the existing 2D and several state-of-the-art one-dimensional (1D) chaotic maps.
引用
收藏
页码:887 / 897
页数:11
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