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首页> 外文期刊>IEEE Transactions on Automatic Control >Reconciling $nu$ -Gap Metric and IQC Based Robust Stability Analysis
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Reconciling $nu$ -Gap Metric and IQC Based Robust Stability Analysis

机译:调节$ nu $-基于间隙度量和IQC的鲁棒稳定性分析

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摘要

This technical note elaborates on the flexibility of an approach that combines $nu$-gap metric and integral quadratic constraint (IQC) based analysis in the study of uncertain feedback interconnections of distributed-parameter transfer functions. It is established that a standard $nu$ -gap ball robust stability result can be recovered within the blended ${rm IQC}u$-gap framework, which only requires the existence of $nu$-gap continuous paths within the uncertainty set of interest. This is achieved, in part, by showing that sufficiently small $nu$-gap balls are pathwise connected in the graph topology. A linear fractional characterisation of the $nu$-gap is a key ingredient. This characterisation is underpinned by a certain $J$-spectral factorisation, also shown to exist herein.
机译:本技术说明详细介绍了结合 $ nu $ -间隙度量和基于积分二次约束(IQC)的方法的灵活性分布参数传递函数的不确定反馈互连研究中的分析。已确定可以在混合的 $ nu $ -间隙球鲁棒稳定性结果。 inline“> $ {rm IQC} / nu $ -gap框架,该框架仅需要存在 $ nu $ 会间隔连续的路径。这部分是通过显示足够小的 $ nu $ -间隙球在图拓扑中沿路径连接而实现的。 $ nu $ -gap的线性分数表征是关键因素。此特征由某些 $ J $ -光谱因式分解(也已在此处显示)支持。

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