{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,24]],"date-time":"2025-11-24T07:16:51Z","timestamp":1763968611987,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2025,7,5]],"date-time":"2025-07-05T00:00:00Z","timestamp":1751673600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Henan","award":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"],"award-info":[{"award-number":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"]}]},{"name":"Key Research and Development and Promotion of Special Project of Henan Province","award":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"],"award-info":[{"award-number":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"]}]},{"name":"Key scientific research project of Henan Province","award":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"],"award-info":[{"award-number":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"]}]},{"name":"Science Foundation of for Doctorate Research of Zhengzhou University of Light Industry","award":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"],"award-info":[{"award-number":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"]}]},{"name":"China Scholarship Council","award":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"],"award-info":[{"award-number":["252300420390","232102210061","232102310179","25A120002","2023BSJJ029"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>In this paper, we tackle the decentralized-output feedback sampled-data disturbance rejection control for a dual-drive H-Gantry (DDHG) system with a symmetrical structure. For the DDHG system with disturbances, only the position information of the system at the sampling points can be utilized, such that the traditional control methods based on full state information of the DDHG system could not be used. To this end, a linear discrete-time generalized-proportional-integral observer (GPIO) based on the position information and reference trajectory of DDHG at the sampling points is constructed first, such that unmeasured states and disturbance can be estimated simultaneously. Then, a GPIO-based decentralized-output feedback sampled-data control (GPIO-DOFC) method is proposed by utilizing the estimations of the unmeasured states and disturbance. A strict theoretical analysis of the closed-loop system is carried out, which demonstrates that the desired trajectory could be tracked under the proposed GPIO-DOFC method. Finally, comparative studies are carried out between the proposed GPIO-DOFC method and the extended-state observer-based decentralized-output feedback sampled-data control (ESO-DOFC) method. These confirm the efficacy and feasibility of the proposed control scheme.<\/jats:p>","DOI":"10.3390\/sym17071068","type":"journal-article","created":{"date-parts":[[2025,7,7]],"date-time":"2025-07-07T02:53:07Z","timestamp":1751856787000},"page":"1068","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Decentralized-Output Feedback Sampled-Data Disturbance Rejection Control for Dual-Drive H-Gantry System"],"prefix":"10.3390","volume":"17","author":[{"given":"Jingjing","family":"Mu","sequence":"first","affiliation":[{"name":"School of Mathematics and Physics, Henan University of Urban Construction, Pingdingshan 467036, China"}]},{"given":"Qixun","family":"Lan","sequence":"additional","affiliation":[{"name":"School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China"}]},{"given":"Yajie","family":"Li","sequence":"additional","affiliation":[{"name":"School of Mathematics and Physics, Henan University of Urban Construction, Pingdingshan 467036, China"}]},{"given":"Huawei","family":"Niu","sequence":"additional","affiliation":[{"name":"School of Mathematics, Pingdingshan Vocational and Technical College, Pingdingshan 467000, China"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"7526","DOI":"10.1109\/TIE.2018.2795522","article-title":"Advanced synchronization control of a dual-linear-motor-driven gantry with rotational dynamics","volume":"65","author":"Li","year":"2018","journal-title":"IEEE Trans. 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