Dynamics and circuit implementation of three simplified chaotic systems

被引：2

作者：

Sun Ke-hui ^{[1
]}

Wang Yan-li ^{[1
]}

Zhu Cong-xu ^{[2
]}

机构：

[1] Cent S Univ, Sch Phys & Elect, Changsha 410083, Peoples R China

[2] Cent S Univ, Sch Informat Sci & Engn, Changsha 410083, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2013年 / 20卷 / 03期

关键词：

chaos; single-parameter system; circuit realization; secure communication; chaos shift keying; SECURE COMMUNICATION; LORENZ SYSTEM; SYNCHRONIZATION; ATTRACTOR; DESIGN;

D O I：

10.1007/s11771-013-1533-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

To improve the performance of chaotic secure communication, three simplified chaotic systems with one variable parameter were investigated. Basic properties were analyzed including symmetry, dissipation and topological structure. Complex dynamical behaviors of the systems including chaos and periodic orbits were verified by numerical simulations, Lyapunov exponents and bifurcation diagrams. Interestingly, the three systems were integrated in a common circuit, and their dynamical behaviors were easily observed by adjusting regulable resistors R-28, R-14 and R-17, respectively, and the relations between the variable resistor and the system parameter were deduced. The circuit experiment results agree well with the simulation results. Finally, a secure communication scheme based on chaos shift keying (CSK) was presented, which lays an experiment foundation for chaotic digital secure communication.

引用

页码：663 / 669

页数：7

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