Title :
A Variable Structure Chaos System Research and Its Realization
Author :
Zhang, Chengliang ; Wang, Guangyi ; Qi, Aixue
Author_Institution :
Dept. of Phys. & Electron. Sci., Binzhou Univ., Binzhou, China
Abstract :
In order to get a good pseudo random sequence (used to spread spectrum communication and information encryption, etc), this paper introduces a variable structure chaotic system, which consists of four different subsystems and can change its structure timely and randomly from one to another using two switching functions. Study the basic dynamic characteristics, including symmetry, equilibrium, dissipativity, and Lyapunov exponent. Moreover, an analogue circuit is designed and realized.
Keywords :
analogue circuits; chaotic communication; cryptography; random sequences; spread spectrum communication; variable structure systems; Lyapunov exponent; analogue circuit; information encryption; pseudorandom sequence; spread spectrum communication; switching functions; variable structure chaos system; Chaotic communication; Eigenvalues and eigenfunctions; Equations; Generators; Spread spectrum communication; Switches; Lyapunov exponent; Variable structure chaos; circuit realization; switching function;
Conference_Titel :
Chaos-Fractals Theories and Applications (IWCFTA), 2011 Fourth International Workshop on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-1798-7
DOI :
10.1109/IWCFTA.2011.74
