基于扩张状态观测器的标量混沌信号同步系统  

Scalar chaotic signal synchronization system based on extended state observer

作　　者：梁占红[1] 高金峰[1] 

机构地区：[1]郑州大学电气工程学院,河南郑州450002

出　　处：《系统工程与电子技术》2006年第9期1408-1411,共4页Systems Engineering and Electronics

摘　　要：将扩张状态观测器与控制器的backstepping设计相结合,给出了一种标量混沌信号同步控制方案。该方案将产生参考混沌信号的驱动系统看作具有规范形或类规范形的系统,构造具有严格反馈形式的非线性系统作为响应系统,利用扩张状态观测器估计驱动系统的状态和未知结构信息,采用backstepping方法设计出控制器。应用该同步控制方案,可以在驱动系统结构和参数未知及不要求混沌参考信号连续可导的前提下,实现构造响应系统的输出渐近同步于任意标量混沌信号。理论分析与计算机仿真结果均证实了控制方案的有效性。Based on extended state observerand backstepping design of the controller, a scalar chaotic signal synchronization system is proposed. The driver system which provides a chaotic reference signal is looked upon as a standard or standard-like system, then a nonlinear response system in strict-feedback form is constructed. The states and the unknown structure of the driver system are estimated by an extended state observer. The controller is designed via backstepping approach. The output of the response system is controlled to asymptotically synchronize with any scalar chaotic signal without continuous derivatives of the driver system with unknown structure and parameters. Both theory analysis and simulation results illustrate the validity of the scalar chaotic signal synchronization system.

关 键 词：混沌同步 严格反馈 扩张状态观测器 BACKSTEPPING设计 

分 类 号：TP278[自动化与计算机技术—检测技术与自动化装置]