arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.5867eess.SYcs.SYmath.DSmath.OC
收藏

单侧Lipschitz系统的非线性状态观测器设计

Design of Nonlinear State Observers for One-Sided Lipschitz Systems

University of Alberta(阿尔伯塔大学)

Masoud Abbaszadeh, Horacio J. Marquez

AI总结:

针对单侧Lipschitz非线性系统,提出基于非线性矩阵不等式转化为线性矩阵不等式的状态观测器设计方法,以降低保守性。

摘要:

满足Lipschitz连续条件的非线性系统的控制和状态估计三十多年来一直是非线性系统理论的重要课题,产生了大量文献。然而,该方法的主要批评在于Lipschitz连续条件的限制性以及相关结果的保守性。本文通过引入更一般的非线性函数族,即单侧Lipschitz函数,对此问题进行了扩展。相应的系统类是众所周知的Lipschitz系统类的超集,并且在保守性方面具有固有优势。本文首先建立了这类系统的状态观测器设计问题,讨论了挑战,并提供了一些面向分析的工具。然后,提出了基于非线性矩阵不等式的观测器设计问题的解决方案,这些不等式进而转化为数值上高效可解的线性矩阵不等式。

英文摘要:

Control and state estimation of nonlinear systems satisfying a Lipschitz continuity condition have been important topics in nonlinear system theory for over three decades, resulting in a substantial amount of literature. The main criticism behind this approach, however, has been the restrictive nature of the Lipschitz continuity condition and the conservativeness of the related results. This work deals with an extension to this problem by introducing a more general family of nonlinear functions, namely one-sided Lipschitz functions. The corresponding class of systems is a superset of its well-known Lipschitz counterpart and possesses inherent advantages with respect to conservativeness. In this paper, first the problem of state observer design for this class of systems is established, the challenges are discussed and some analysis-oriented tools are provided. Then, a solution to the observer design problem is proposed in terms of nonlinear matrix inequalities which in turn are converted into numerically efficiently solvable linear matrix inequalities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑