{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T19:26:04Z","timestamp":1764962764211,"version":"3.46.0"},"reference-count":27,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T00:00:00Z","timestamp":1764892800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Tianshan Talent Training Program of Xinjiang Uygur Autonomous Region","award":["2023TSYCCX0105"],"award-info":[{"award-number":["2023TSYCCX0105"]}]},{"name":"Xinjiang Uygur Autonomous Region \u201cTianshan innovation team\u201d","award":["No. 2024D14003"],"award-info":[{"award-number":["No. 2024D14003"]}]},{"name":"Western-Light Key Laboratory Project of the Western Cross-disciplinary Team","award":["xbzg-zdsys-202320"],"award-info":[{"award-number":["xbzg-zdsys-202320"]}]},{"name":"Scientific Instrument Developing Project of the Chinese Academy of Sciences","award":["PTYQ2022YZZD01"],"award-info":[{"award-number":["PTYQ2022YZZD01"]}]},{"name":"Shaanxi antenna and control technology key laboratory open fund"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Obtaining an antenna\u2019s back-up structure (BUS) temperature field is an essential prerequisite for analyzing its thermal deformation. Thermodynamic simulation can obtain the structure\u2019s thermal distribution, but it has low computational accuracy. There is a problem with cumbersome wiring and difficult maintenance of the temperature measurement system. This study developed an improved RIME-XGBoost model to realize the temperature prediction of the BUS of the Nanshan 26-m Radio Telescope (NSRT). The proposed model successfully predicts the NSRT\u2019s BUS temperature distribution based solely on environmental sensing (ambient temperature, angle of solar radiation, antenna\u2019s orientation, etc.). The relative prediction accuracy between the predicted and actual BUS temperature is 97.15%, and the predictive error is less than 0.897 K (root mean square error, RMSE). This research result provides an alternative method for the real-time reconstruction of the structure\u2019s thermal distribution in large-aperture radio telescopes.<\/jats:p>","DOI":"10.3390\/s25247410","type":"journal-article","created":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T18:42:02Z","timestamp":1764960122000},"page":"7410","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Real-Time Reconstruction of the Temperature Field of NSRT\u2019s Back-Up Structure Based on Improved RIME-XGBoost"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-9265-3065","authenticated-orcid":false,"given":"Shi-Jiao","family":"Zhang","sequence":"first","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qian","family":"Xu","sequence":"additional","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"},{"name":"State Key Laboratory of Radio Astronomy and Technology, Beijing 100101, China"},{"name":"Xinjiang Key Laboratory of Radio Astrophysics, Urumqi 830011, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-4320-4409","authenticated-orcid":false,"given":"Hui","family":"Wang","sequence":"additional","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fei","family":"Xue","sequence":"additional","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fei-Long","family":"He","sequence":"additional","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiao-Man","family":"Cao","sequence":"additional","affiliation":[{"name":"Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Greve, A., and Bremer, M. 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