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A linear extended state observer combined with differential signals: Application to a flexible rectilinear system.

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Title: A linear extended state observer combined with differential signals: Application to a flexible rectilinear system.
Authors: Pan, Tianhong1 (AUTHOR) thpan@ahu.edu.cn, Zhu, Junjie1 (AUTHOR), Wang, Xin1 (AUTHOR), Fang, Liandi2 (AUTHOR)
Source: Asian Journal of Control. Jul2026, Vol. 28 Issue 4, p2017-2030. 14p.
Subjects: Tracking control systems, Observability (Control theory), Robust control, Feedback control systems, Frequency-domain analysis
Abstract: An improved linear extended state observer (iLESO)‐based trajectory tracking control scheme is proposed and applied to a flexible rectilinear system. By introducing differential signals into the traditional LESO, the number of correction variables of observer is increased. Frequency‐domain analysis demonstrates that the observation error of the iLESO and the tracking error of the improved active disturbance rejection control (iADRC) are bounded. Experimental tests show that LESO including differential signals can significantly improve the ability of observer and suppress peaking phenomena caused by nonzero initial states. The proposed strategy significantly outperforms traditional linear ADRC in control performance. [ABSTRACT FROM AUTHOR]
Copyright of Asian Journal of Control is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A linear extended state observer combined with differential signals: Application to a flexible rectilinear system.
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  Data: <searchLink fieldCode="AR" term="%22Pan%2C+Tianhong%22">Pan, Tianhong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> thpan@ahu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Junjie%22">Zhu, Junjie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xin%22">Wang, Xin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fang%2C+Liandi%22">Fang, Liandi</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Asian+Journal+of+Control%22">Asian Journal of Control</searchLink>. Jul2026, Vol. 28 Issue 4, p2017-2030. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Tracking+control+systems%22">Tracking control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Observability+%28Control+theory%29%22">Observability (Control theory)</searchLink><br /><searchLink fieldCode="DE" term="%22Robust+control%22">Robust control</searchLink><br /><searchLink fieldCode="DE" term="%22Feedback+control+systems%22">Feedback control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Frequency-domain+analysis%22">Frequency-domain analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: An improved linear extended state observer (iLESO)‐based trajectory tracking control scheme is proposed and applied to a flexible rectilinear system. By introducing differential signals into the traditional LESO, the number of correction variables of observer is increased. Frequency‐domain analysis demonstrates that the observation error of the iLESO and the tracking error of the improved active disturbance rejection control (iADRC) are bounded. Experimental tests show that LESO including differential signals can significantly improve the ability of observer and suppress peaking phenomena caused by nonzero initial states. The proposed strategy significantly outperforms traditional linear ADRC in control performance. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Asian Journal of Control is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1002/asjc.3805
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 2017
    Subjects:
      – SubjectFull: Tracking control systems
        Type: general
      – SubjectFull: Observability (Control theory)
        Type: general
      – SubjectFull: Robust control
        Type: general
      – SubjectFull: Feedback control systems
        Type: general
      – SubjectFull: Frequency-domain analysis
        Type: general
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      – TitleFull: A linear extended state observer combined with differential signals: Application to a flexible rectilinear system.
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            NameFull: Pan, Tianhong
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            NameFull: Zhu, Junjie
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            NameFull: Wang, Xin
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            – D: 01
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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              Value: 28
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