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Performance analysis of multirate systems:A direct frequency-domain identification approach

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Název: Performance analysis of multirate systems:A direct frequency-domain identification approach
Autoři: van Haren, Max, Blanken, Lennart L.G., Oomen, Tom A.E.
Zdroj: van Haren, M, Blanken, L L G & Oomen, T A E 2025, 'Performance analysis of multirate systems : A direct frequency-domain identification approach', Mechanical Systems and Signal Processing, vol. 235, 112843. https://doi.org/10.1016/j.ymssp.2025.112843
Rok vydání: 2025
Témata: Frequency-domain models, Local modeling, Multirate systems, Sampled-data systems, System identification, Time-invariant representations
Popis: Frequency-domain performance analysis of intersample behavior in sampled-data and multirate systems is challenging due to the lack of a frequency-separation principle, and systematic identification techniques are lacking. The aim of this paper is to develop an efficient technique for identifying the full intersample performance in the frequency-domain for closed-loop multirate systems, in particular the Performance Frequency Gain (PFG). Through local modeling techniques, aliased frequency components are effectively disentangled when identifying the PFG, which is directly facilitated by frequency-lifting the multirate system to a multivariable time-invariant representation. The developed method accurately and directly identifies the PFG in a single identification experiment. Finally, the developed method is experimentally validated on a prototype motion system, showing accurate identification of frequency-domain representations for the multirate system, including the PFG.
Druh dokumentu: article in journal/newspaper
Popis souboru: application/pdf
Jazyk: English
Relation: info:eu-repo/semantics/altIdentifier/pissn/0888-3270
DOI: 10.1016/j.ymssp.2025.112843
Dostupnost: https://research.tue.nl/en/publications/5d452d77-fa85-4aeb-b8d2-cd59016fd1b2
https://doi.org/10.1016/j.ymssp.2025.112843
https://pure.tue.nl/ws/files/359391637/DirectPFGID.pdf
https://pure.tue.nl/ws/files/359398832/1-s2.0-S0888327025005448-main.pdf
https://www.scopus.com/pages/publications/105006699286
Rights: info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by-nc-nd/4.0/ ; http://creativecommons.org/licenses/by/4.0/
Přístupové číslo: edsbas.FB1684EE
Databáze: BASE
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  Data: Performance analysis of multirate systems:A direct frequency-domain identification approach
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  Data: <searchLink fieldCode="AR" term="%22van+Haren%2C+Max%22">van Haren, Max</searchLink><br /><searchLink fieldCode="AR" term="%22Blanken%2C+Lennart+L%2EG%2E%22">Blanken, Lennart L.G.</searchLink><br /><searchLink fieldCode="AR" term="%22Oomen%2C+Tom+A%2EE%2E%22">Oomen, Tom A.E.</searchLink>
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  Data: van Haren, M, Blanken, L L G & Oomen, T A E 2025, 'Performance analysis of multirate systems : A direct frequency-domain identification approach', Mechanical Systems and Signal Processing, vol. 235, 112843. https://doi.org/10.1016/j.ymssp.2025.112843
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  Data: 2025
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  Data: <searchLink fieldCode="DE" term="%22Frequency-domain+models%22">Frequency-domain models</searchLink><br /><searchLink fieldCode="DE" term="%22Local+modeling%22">Local modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Multirate+systems%22">Multirate systems</searchLink><br /><searchLink fieldCode="DE" term="%22Sampled-data+systems%22">Sampled-data systems</searchLink><br /><searchLink fieldCode="DE" term="%22System+identification%22">System identification</searchLink><br /><searchLink fieldCode="DE" term="%22Time-invariant+representations%22">Time-invariant representations</searchLink>
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  Data: Frequency-domain performance analysis of intersample behavior in sampled-data and multirate systems is challenging due to the lack of a frequency-separation principle, and systematic identification techniques are lacking. The aim of this paper is to develop an efficient technique for identifying the full intersample performance in the frequency-domain for closed-loop multirate systems, in particular the Performance Frequency Gain (PFG). Through local modeling techniques, aliased frequency components are effectively disentangled when identifying the PFG, which is directly facilitated by frequency-lifting the multirate system to a multivariable time-invariant representation. The developed method accurately and directly identifies the PFG in a single identification experiment. Finally, the developed method is experimentally validated on a prototype motion system, showing accurate identification of frequency-domain representations for the multirate system, including the PFG.
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  Data: 10.1016/j.ymssp.2025.112843
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  Data: https://research.tue.nl/en/publications/5d452d77-fa85-4aeb-b8d2-cd59016fd1b2<br />https://doi.org/10.1016/j.ymssp.2025.112843<br />https://pure.tue.nl/ws/files/359391637/DirectPFGID.pdf<br />https://pure.tue.nl/ws/files/359398832/1-s2.0-S0888327025005448-main.pdf<br />https://www.scopus.com/pages/publications/105006699286
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      – SubjectFull: Multirate systems
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