arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.00468math.OCmath.DS
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数据信息性:数据驱动分析和控制的新视角

Data informativity: a new perspective on data-driven analysis and control

Henk J. van Waarde, Jaap Eising, Harry L. Trentelman, M. Kanat Camlibel

摘要:

最近,在数据驱动的分析和控制的背景下,持续令人兴奋的数据的使用已经普及。这些数据已被用来评估系统的理论特性,并构建控制律,而不使用系统模型。激励的持续性是一个强条件,它也允许从给定模型类内的数据中唯一识别底层动力系统。在本文中,我们开发了一个新的框架,以便处理不一定持续令人兴奋的数据。在这个框架内,我们调查的充要条件的信息性数据的几个数据驱动的分析和控制问题。对于某些分析和设计问题,我们的结果表明,激励的持续性是不必要的。事实上,在这些情况下,数据驱动的分析/控制是可能的,而(唯一的)系统辨识和基于模型的控制的组合是不可能的。对于某些其他的控制问题,我们的研究结果证明了使用持续令人兴奋的数据,数据驱动的控制是可能的,只有与系统辨识的信息数据。

英文摘要:

The use of persistently exciting data has recently been popularized in the context of data-driven analysis and control. Such data have been used to assess system theoretic properties and to construct control laws, without using a system model. Persistency of excitation is a strong condition that also allows unique identification of the underlying dynamical system from the data within a given model class. In this paper, we develop a new framework in order to work with data that are not necessarily persistently exciting. Within this framework, we investigate necessary and sufficient conditions on the informativity of data for several data-driven analysis and control problems. For certain analysis and design problems, our results reveal that persistency of excitation is not necessary. In fact, in these cases data-driven analysis/control is possible while the combination of (unique) system identification and model-based control is not. For certain other control problems, our results justify the use of persistently exciting data as data-driven control is possible only with data that are informative for system identification.

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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