文章基本信息

标题：Frequency Response Functions of Linear Parameter-Varying Systems
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作者：Maarten Schoukens ; Roland Tóth
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2019
卷号：52
期号：28
页码：32-37
DOI：10.1016/j.ifacol.2019.12.344
语种：English
出版社：Elsevier
摘要：Frequency-domain system representations offer important system analysis, control design and simulation tools. While this representation concept is well developed for linear time-invariant systems, there has been no general theory established for the linear parameter-varying (LPV) system class. This paper overviews and compares the existing concepts of frozen and instantaneous frequency-domain LPV representations, pointing out the need for a representation form where the effect of the spectrum of a varying scheduling trajectory can be clearly understood and analyzed on the output spectrum. For this purpose, the harmonic frequency response function (hFRF), known from the linear time-varying literature, in introduced for LPV systems. More specifically the paper demonstrates how the hFRF can be computed directly in the frequency domain for discrete-time affine input-output LPV systems.
关键词：KeywordsLinear parameter-varyingFrequency response functionFrequency domain