Lossless Compression Method for the Magnetic and Helioseismic Imager (MHI) Payload
文献类型：期刊论文
| 作者 | Tong, Li-Yue1,2,3; Lin, Jia-Ben1,2; Deng, Yuan-Yong1,2,3; Ji KF(季凯帆)3,4 ; Hou, Jun-Feng1,2,3; Wang, Quan1,2; Yang, Xiao1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2024-04-01 |
| 卷号 | 24期号:4 |
| ISSN号 | 1674-4527 |
| 关键词 | methods: data analysis techniques: image processing Sun: magnetic fields Sun: photosphere |
| DOI | 10.1088/1674-4527/ad2cd4 |
| 产权排序 | 第4完成单位 |
| 文献子类 | Article |
| 英文摘要 | The Solar Polar-orbit Observatory (SPO), proposed by Chinese scientists, is designed to observe the solar polar regions in an unprecedented way with a spacecraft traveling in a large solar inclination angle and a small ellipticity. However, one of the most significant challenges lies in ultra-long-distance data transmission, particularly for the Magnetic and Helioseismic Imager (MHI), which is the most important payload and generates the largest volume of data in SPO. In this paper, we propose a tailored lossless data compression method based on the measurement mode and characteristics of MHI data. The background out of the solar disk is removed to decrease the pixel number of an image under compression. Multiple predictive coding methods are combined to eliminate the redundancy utilizing the correlation (space, spectrum, and polarization) in data set, improving the compression ratio. Experimental results demonstrate that our method achieves an average compression ratio of 3.67. The compression time is also less than the general observation period. The method exhibits strong feasibility and can be easily adapted to MHI. |
| 学科主题 | 天文学 ; 天文学:太阳与太阳系 |
| URL标识 | 查看原文 |
| 出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA |
| 资助项目 | National Key R&D Program of China[2022YFF0503800]; National Natural Science Foundation of China (NSFC)[11427901]; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS-SPP)[No.XDA15320102]; Youth Innovation Promotion Association (CAS)[2022057] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:001199870500001 |
| 资助机构 | National Key R&D Program of China[2022YFF0503800] ; National Natural Science Foundation of China (NSFC)[11427901] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS-SPP)[No.XDA15320102] ; Youth Innovation Promotion Association (CAS)[2022057] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27049]  |
| 专题 | 天文技术实验室 |
| 作者单位 | 1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; jiabenlin@bao.ac.cn; 2.Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China; 3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China |
| 推荐引用方式 GB/T 7714 | Tong, Li-Yue,Lin, Jia-Ben,Deng, Yuan-Yong,et al. Lossless Compression Method for the Magnetic and Helioseismic Imager (MHI) Payload[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(4). |
| APA | Tong, Li-Yue.,Lin, Jia-Ben.,Deng, Yuan-Yong.,季凯帆.,Hou, Jun-Feng.,...&Yang, Xiao.(2024).Lossless Compression Method for the Magnetic and Helioseismic Imager (MHI) Payload.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(4). |
| MLA | Tong, Li-Yue,et al."Lossless Compression Method for the Magnetic and Helioseismic Imager (MHI) Payload".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.4(2024). |
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来源：云南天文台
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