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arXiv 2204.04060eess.SYcs.SYmath.DSmath.OC
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基于深度学习的非线性系统LPV模型辨识

Deep-Learning-Based Identification of LPV Models for Nonlinear Systems

Chris Verhoek, Gerben I. Beintema, Sofie Haesaert, Maarten Schoukens, Roland Tó th

摘要:

线性变参数(LPV)框架提供了一个建模和控制设计工具链,通过线性代理模型来解决非线性(NL)系统行为。尽管LPV数据驱动建模的主要研究工作,目前的识别理论的一个关键的缺点是,往往调度变量被假定为一个给定的测量信号的数据集。在识别NL系统的LPV模型的情况下,描述与可测量调度信号的关系的调度图的选择被放在用户的肩上,只有有限的支持工具可用。然而,这种选择极大地影响了最终LPV模型的可用性和复杂性。本文提出了一种基于深度学习的方法,从输入输出数据中提供NL系统的调度映射和LPV状态空间模型的联合估计,并且在一般新息型噪声条件下具有一致性保证。它的效率证明了一个现实的识别问题。

英文摘要:

The Linear Parameter-Varying (LPV) framework provides a modeling and control design toolchain to address nonlinear (NL) system behavior via linear surrogate models. Despite major research effort on LPV data-driven modeling, a key shortcoming of the current identification theory is that often the scheduling variable is assumed to be a given measured signal in the data set. In case of identifying an LPV model of a NL system, the selection of the scheduling map, which describes the relation to the measurable scheduling signal, is put on the users' shoulder, with only limited supporting tools available. This choice however greatly affects the usability and complexity of the resulting LPV model. This paper presents a deep-learning-based approach to provide joint estimation of a scheduling map and an LPV state-space model of a NL system from input-output data, and has consistency guarantees under general innovation-type noise conditions. Its efficiency is demonstrated on a realistic identification problem.

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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