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arXiv 1902.08288eess.SYcs.SYmath.DSmath.OC
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L2观测器用于具有未知输入的非线性系统类

L2 Observers for a Class of Nonlinear Systems with Unknown Inputs

Purdue University(普渡大学);Mitsubishi Electric Research Laboratories(三菱电机研究实验室)

Martin Corless, Ankush Chakrabarty

AI总结:

本文研究了一类非线性系统中状态和未知输入的估计问题,通过线性矩阵不等式(LMI)设计观测器,保证误差动态的L2性能,并探讨了LMI可行性的条件。

摘要:

我们考虑了一类受未知外源输入影响的非线性系统中状态和未知输入的估计问题。外源输入本身被建模为由受未知输入影响的非线性系统生成。本文考虑的非线性特性由包含许多常见非线性特性的乘法矩阵所表征。我们获得了一个线性矩阵不等式(LMI),如果可行,将提供观测器的增益,从而保证观测器误差动态的L2性能。我们还提出了保证误差L2范数可以任意小的条件,并研究了所提出LMI可行性的条件。

英文摘要:

We consider the problem of estimating the state and unknown input for a large class of nonlinear systems subject to unknown exogenous inputs. The exogenous inputs themselves are modeled as being generated by a nonlinear system subject to unknown inputs. The nonlinearities considered in this work are characterized by multiplier matrices that include many commonly encountered nonlinearities. We obtain a linear matrix inequality (LMI), that, if feasible, provides the gains for an observer which results in certified L2 performance of the error dynamics associated with the observer. We also present conditions which guarantee that the L2 norm of the error can be made arbitrarily small and investigate conditions for feasibility of the proposed LMIs.

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。

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