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Multivariable gain-phase and sensitivity integral relations and design trade-offs

机译:多变量增益相位和灵敏度积分关系与设计权衡

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摘要

We present several extensions of the classical Bode integral relations to multivariable systems. The main contributions are an extended gain-phase integral formula and an extended sensitivity integral relation. These results are useful for analyzing fundamental design limitations that arise in linear multivariable feedback systems. In particular, they provide important insights into feedback properties which are unique to multivariable systems and which cannot be inferred from the previously known integral relations applicable to single-input/single-output systems. Both results show that design limitations in multivariable systems depend strongly upon certain directionality properties.
机译:我们介绍了经典Bode积分关系到多变量系统的几种扩展。主要贡献是扩展的增益相位积分公式和扩展的灵敏度积分关系。这些结果对于分析线性多变量反馈系统中出现的基本设计限制很有用。特别地,它们提供了对反馈属性的重要见解,这些反馈属性对于多变量系统是唯一的,并且不能从适用于单输入/单输出系统的先前已知的积分关系中得出。两项结果均表明,多变量系统中的设计局限性很大程度上取决于某些方向性。

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