摘要
本文提出了一种同构混沌系统的同步方法,对于一个由未知动态系统产生的任意信号,能采用两个同构混沌系统来进行有效的同步,并可对信号进行保存。采用非线性系统观测器,考虑变参数和噪声的影响,给出了混沌同步和安全通信的简单有效的方法,并且分析了系统的稳定性,对Rossler系统的分析和仿真研究表明该方法具有同步速度快,精度高等优良性能。
An identical chaotic systems synchronization methodology was studied in this paper. An arbitrary signal, generated by an unknown dynamical system, can be synchronized and stored by the identical chaotic systems. By constructing an observer of chaotic system, considering the parameter disturbance and noise, the method that could be used for both chaos synchronization and secure communication was given, and furthermore its stability was analyzed. Numerical examples illustrated the accuracy and high performance of the proposed method for chaos synchronization and secure communication.
出处
《微计算机信息》
北大核心
2008年第15期139-140,271,共3页
Control & Automation
基金
国家自然科学基金(70271001)
中国博士后基金(2002032191)
上海市科委重点项目(05dz05036)
关键词
混沌同步
混沌系统
状态观测器
安全通信
chaos synchronization
chaotic systems
state space observer
secure communication
