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Nonlinear Calibration Method for FMG Line-of-Sight Magnetic Field

文献类型：期刊论文

作者Hu, Ziyao1,2; Ji KF(季凯帆)3; Bai, Xianyong1,2,4,5; Deng, Yuanyong1,2,4; Su, Jiangtao1,2,4; Guo, Jingjing6; Liu, Suo1,2,4; Yang, Xiao1,2,4
刊名UNIVERSE
出版日期2025-03-24
卷号11期号:4
关键词solar magnetic fields machine learning
DOI10.3390/universe11040108
产权排序第3完成单位
文献子类Article
英文摘要This study is to correct magnetic saturation and wavelength shift in Full-disk Magnetograph (FMG) solar magnetic field measurements on the Advanced Space-based Solar Observatory (ASO-S) satellite. Due to its single-wavelength polarization data limitations, currently, FMG relies on linear calibration. We propose a residual network model to output a line-of-sight (LOS) magnetic field which is trained with HMI LOS magnetic fields as target, and FMG Stokes I, V data and LOS velocity components as inputs. Compared to traditional methods, our model achieves lower MAE, RMSE, and improved consistency with the target, while also demonstrating robustness to wavelength shift, offering more accurate magnetic field measurements.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地MDPI AG, Grosspeteranlage 5, CH-4052 BASEL, SWITZERLAND
WOS关键词INVERSION
资助项目National Key Research and Development Program of China; National Natural Science Foundation of China[12273059]; National Natural Science Foundation of China[12073077]; National Natural Science Foundation of China[12103034]; Youth Innovation Promotion Association CAS
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:001475513200001
出版者MDPI
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China[12273059, 12073077, 12103034] ; Youth Innovation Promotion Association CAS[2023061] ; [2022YFF0503001] ; [2022YFF0503800] ; [2021YFA1600500]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28290]  
专题天文技术实验室
作者单位1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China;
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, China;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
4.Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;
5.Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, China;
6.School of Big Data and Artificial Intelligence, Chizhou University, Chizhou 247000, China
推荐引用方式
GB/T 7714		 Hu, Ziyao,Ji KF,Bai, Xianyong,et al. Nonlinear Calibration Method for FMG Line-of-Sight Magnetic Field[J]. UNIVERSE,2025,11(4).
APA Hu, Ziyao.,季凯帆.,Bai, Xianyong.,Deng, Yuanyong.,Su, Jiangtao.,...&Yang, Xiao.(2025).Nonlinear Calibration Method for FMG Line-of-Sight Magnetic Field.UNIVERSE,11(4).
MLA Hu, Ziyao,et al."Nonlinear Calibration Method for FMG Line-of-Sight Magnetic Field".UNIVERSE 11.4(2025).

入库方式： OAI收割

来源：云南天文台

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