信息与控制2013，Vol.42Issue(2)：236-242,7.DOI:10.3724/SP.J.1219.2013.00236
基于辅助驱动信号的一类不确定混沌系统的同步及其在保密通讯中的应用
The Synchronization for a Class of Uncertain Chaotic Systems Based on Auxiliary Drive Signals and Its Application to Secure Communication
摘要
Abstract
The problems of observer-based chaos synchronization and chaos synchronization based secure communication are considered when the observer matching condition is not satisfied for a class of uncertain chaotic systems. Firstly, an auxiliary drive signal is constructed based on the concept of relative degree, so that the observer matching condition is satisfied with respect to it. Secondly, for chaos synchronization, a kind of reduced-order observer is developed as the response system which can directly eliminate the influence of the non-linear part and the unknown disturbances of the system. Then, a high-order high-gain sliding mode observer is considered to get the estimation of the auxiliary drive signals as well as their derivatives. The proposed method is applied to the secure communication issues and a kind of message information recovery method is developed. Finally, Rossler chaotic system is used as a simulation example to verify the effectiveness of the proposed method.关键词
辅助驱动信号/降维观测器/高阶高增益滑模观测器/保密通讯Key words
auxiliary drive signal/reduced-order observer/high-order high-gain sliding observer/secure communication分类
信息技术与安全科学引用本文复制引用
江秀,朱芳来,韩冬..基于辅助驱动信号的一类不确定混沌系统的同步及其在保密通讯中的应用[J].信息与控制,2013,42(2):236-242,7.基金项目
国家自然科学基金资助项目(61074009,60972035) （61074009,60972035）
高等学校博士学科点号项科研基金资助项目(20110072110015) （20110072110015）
广西省制造系统与先进制造技术重点实验室项目(PF110289) （PF110289）
同济大学基础高等研究院基金资助项目 （）
上海市重点学科基金资助项目(B004). （B004）
