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A Convex Characterization of Robust Stability for Positive and Positively Dominated Linear Systems

机译:正和正控制线性系统的鲁棒稳定性的凸刻画

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摘要

We provide convex necessary and sufficient conditions for the robust stability of linear positively dominated systems. In particular, we show that the structured singular value is always equal to its convex upper bound for nonnegative matrices and we use this result to derive necessary and sufficient Linear Matrix Inequality (LMI) conditions for robust stability that involve only the system's static gain. We show how this approach can be applied to test the robust stability of the Foschini–Miljanic algorithm for power control in wireless networks in presence of uncertain interference.
机译:我们为线性正控制系统的鲁棒稳定性提供了凸的充要条件。尤其是,我们证明了结构奇异值始终等于其非负矩阵的凸上限,并且我们使用此结果来得出必要且充分的线性矩阵不等式(LMI)条件,以实现仅涉及系统静态增益的鲁棒稳定性。我们展示了如何将该方法应用于存在不确定干扰的无线网络中用于功率控制的Foschini-Miljanic算法的鲁棒稳定性。

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