同济大学学报（自然科学版）2012，Vol.40Issue(7)：1106-1110,5.DOI:10.3969/j.issn.0253-374x.2012.07.025
一类混沌系统的高增益观测器同步方法
Synchronization for a Class of SQCF-like Chaotic System Based on High-gain Observer
摘要
Abstract
This paper deals with the problem of synchronization of a class of simplest quadratic chaotic flow (SQCF)-like chaotic system based on high-gain observer. By imposing a sliding mode term to suppress the unknown disturbance, a robust high-gain observer can be realized. The high-gain matrix of the proposed observer depends on the solution of an algebraic Riccati equation, so the existence of the solution for this equation is discussed. The sliding-mode gain is designed to ensure that the sliding mode can be reached and maintained. The convergence of the synchronization is proved based on a coordinate transformation and the Lyapunov theory. Finally some simulation results for SQCF chaotic system demonstrate the effectiveness of the proposed method.关键词
Lipschitz条件/高增益观测器/混沌同步/滑模/SQCF(simplest quadratic chaotic flow)系统Key words
Lipschitz conditions high gain observers chaotic synchronization/sliding mode/simplest quadratic chaotic flow (SQCF) system分类
信息技术与安全科学引用本文复制引用
朱芳来,方雯,韩冬..一类混沌系统的高增益观测器同步方法[J].同济大学学报（自然科学版）,2012,40(7):1106-1110,5.基金项目
国家自然科学基金(61074009,6972035) （61074009,6972035）
高等学校博士学科点专项科研基金(20110072110015) （20110072110015）
上海市重点学科项目(B004) （B004）
