Improving intersample behavior in discrete-time system inversion: with application to LTI and LPTV systems

Jurgen C.D.   van Zundert; Wataru Ohnishi; Hiroshi Fujimoto; Tom Oomen

doi:10.1109/TMECH.2019.2953829

Improving intersample behavior in discrete-time system inversion: with application to LTI and LPTV systems

Jurgen C.D. van Zundert (Corresponding author), Wataru Ohnishi, Hiroshi Fujimoto, Tom Oomen

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Discrete-time system inversion for perfect tracking goes at the expense of intersample behavior. The aim of this article is the development of a discrete-time inversion approach that improves continuous-time performance by also addressing the intersample behavior. The approach balances the on-sample and intersample behavior and provides a whole range of new solutions, with stable inversion and multirate inversion as special cases. The approach is successfully applied to a linear periodically time-varying system in both simulations and experiments. The approach improves the intersample behavior through discrete-time system inversion and outperforms existing approaches.

Original language	English
Article number	8902055
Pages (from-to)	55-65
Number of pages	11
Journal	IEEE/ASME Transactions on Mechatronics
Volume	25
Issue number	1
Early online date	2019
DOIs	https://doi.org/10.1109/TMECH.2019.2953829
Publication status	Published - Feb 2020

Keywords

Discrete-time inversion
intersample behavior
linear periodically time varying (LPTV)
linear time invariant (LTI)
multirate inversion
stable inversion

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10.1109/TMECH.2019.2953829

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Cite this

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abstract = "Discrete-time system inversion for perfect tracking goes at the expense of intersample behavior. The aim of this article is the development of a discrete-time inversion approach that improves continuous-time performance by also addressing the intersample behavior. The approach balances the on-sample and intersample behavior and provides a whole range of new solutions, with stable inversion and multirate inversion as special cases. The approach is successfully applied to a linear periodically time-varying system in both simulations and experiments. The approach improves the intersample behavior through discrete-time system inversion and outperforms existing approaches.",

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Improving intersample behavior in discrete-time system inversion: with application to LTI and LPTV systems. / van Zundert, Jurgen C.D. (Corresponding author); Ohnishi, Wataru; Fujimoto, Hiroshi et al.
In: IEEE/ASME Transactions on Mechatronics, Vol. 25, No. 1, 8902055, 02.2020, p. 55-65.

Research output: Contribution to journal › Article › Academic › peer-review

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AU - Oomen, Tom

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KW - Discrete-time inversion

KW - intersample behavior

KW - linear periodically time varying (LPTV)

KW - linear time invariant (LTI)

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Improving intersample behavior in discrete-time system inversion: with application to LTI and LPTV systems

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Keywords

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