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Robust finite frequency H_∞ filtering for uncertain continuous-time systems

机译:不确定连续时间系统的鲁棒有限频率H_∞滤波

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摘要

In this paper, the H filtering problem for a class of continuous-time polytopic uncertain systems is studied. Different from the traditional methods dealing with polytopic uncertainties in the full frequency domain, not only its values but also the finite frequency (FF) cases are considered. Our goal is to design the filters guaranteeing an H performance level in the finite frequency (FF) domains. By using the generalised Kalman-Yakubovich-Popov (gKYP) lemma, polynomially parameter-dependent Lyapunov function and some key matrices, we establish new sufficient conditions to characterise this problem in terms of linear matrix inequalities (LMIs). Finally, a two examples are used to show the superiority and effectiveness of the proposed methods.
机译:本文研究了一类连续时间多主题不确定系统的H滤波问题。与处理全频域中多点不确定性的传统方法不同,不仅考虑其值,而且考虑有限频率(FF)情况。我们的目标是设计一种滤波器,以确保在有限频率(FF)域中达到H级性能。通过使用广义的Kalman-Yakubovich-Popov(gKYP)引理,多项式参数相关的Lyapunov函数和一些关键矩阵,我们建立了新的充分条件,用于根据线性矩阵不等式(LMI)表征此问题。最后,通过两个例子说明了所提方法的优越性和有效性。

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