物理学报Issue(12)：1-12,12.DOI:10.7498/aps.62.120513
基于高增益降维观测器的一类混沌同步*
High-gain reduced-order observer-based synchronization for a kind of uncertain chaotic system∗
摘要
Abstract
In this paper we consider the issues of chaos synchronization and chaos-based secure communication when the so-called observer matching condition is not satisfied. An auxiliary drive signal vector is introduced such that the observer matching condition is satisfied. High-gain observers are employed to estimate the auxiliary drive signals as well as their derivatives in a finite time by using the drive signals of original system. Then, a kind of reduced-order observer is constructed which can directly eliminate the influence of the non-linear part and the disturbances of the system. Based on the estimates of states as well as the estimates of the auxiliary signals and their derivatives, a kind of message information recovery method is proposed. Finally, the R¨ossler 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/混沌同步/降维观测器/保密通讯Key words
auxiliary drive signals/chaos synchronization/reduced-order observer/secure communication引用本文复制引用
韩冬,朱芳来..基于高增益降维观测器的一类混沌同步*[J].物理学报,2013,(12):1-12,12.基金项目
国家自然科学基金(批准号:61074009)、高等学校博士学科点专项科研基金(批准号:20110072110015)、广西制造系统与先进制造技术重点实验室(批准号:PF110289)和上海市重点学科项目(批准号:B004)资助的课题 （批准号:61074009）
