KMS National Astronomical Observatories, CAS
Adaptive scale model reconstruction for radio synthesis imaging | |
Zhang, Li1; Mi, Li-Gong1; Xu, Long2; Zhang, Ming3,4; Li, Dan-Yang1; Liu, Xiang3,4; Wang, Feng5; Xiao, Yi-Fan1; Zhong-Zu Wu6 | |
2021-04-01 | |
Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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ISSN | 1674-4527 |
Volume | 21Issue:3Pages:11 |
Abstract | A sky model from CLEAN deconvolution is a particularly effective high dynamic range reconstruction in radio astronomy, which can effectively model the sky and remove the sidelobes of the point spread function (PSF) caused by incomplete sampling in the spatial frequency domain. Compared to scale-free and multi-scale sky models, adaptive-scale sky modeling, which can model both compact and diffuse features, has been proven to have better sky modeling capabilities in narrowband simulated data, especially for large-scale features in high-sensitivity observations which are exactly one of the challenges of data processing for the Square Kilometre Array (SKA). However, adaptive scale CLEAN algorithms have not been verified by real observation data and allow negative components in the model. In this paper, we propose an adaptive scale model algorithm with non-negative constraint and wideband imaging capacities, and it is applied to simulated SKA data and real observation data from the Karl G. Jansky Very Large Array (JVLA), an SKA precursor. Experiments show that the new algorithm can reconstruct more physical models with rich details. This work is a step forward for future SKA image reconstruction and developing SKA imaging pipelines. |
Keyword | methods data analysis techniques image processing techniques interferometric |
Funding Organization | National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund |
DOI | 10.1088/1674-4527/21/3/63 |
WOS Keyword | CLEAN DECONVOLUTION ; EFFICIENT IMPLEMENTATION ; ALGORITHM |
Language | 英语 |
Funding Project | National Key R&D Program of China[2018YFA0404602] ; National Key R&D Program of China[2018YFA0404603] ; National SKA Program of China[2020SKA0110300] ; National Natural Science Foundation of China (NSFC)[11963003] ; National Natural Science Foundation of China (NSFC)[11763002] ; National Natural Science Foundation of China (NSFC)[61572461] ; National Natural Science Foundation of China (NSFC)[11790305] ; National Natural Science Foundation of China (NSFC)[U1831204] ; National Natural Science Foundation of China (NSFC)[U1931141] ; National Natural Science Foundation of China (NSFC)[11961141001] ; National Natural Science Foundation of China (NSFC)[11903009] ; Guizhou Science & Technology Plan Project[[2017]5788] ; Guizhou Science & Technology Plan Project[[2017]5781] ; Youth Science & Technology Talents Development Project of Guizhou Education Department[KY[2018]119] ; Youth Science & Technology Talents Development Project of Guizhou Education Department[[2018]433] ; Guizhou University Talent Research Fund[(2018)60] |
Funding Organization | National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Guizhou Science & Technology Plan Project ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; Guizhou University Talent Research Fund ; Guizhou University Talent Research Fund |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS ID | WOS:000657374600001 |
Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.bao.ac.cn/handle/114a11/77021 |
Collection | 中国科学院国家天文台 |
Corresponding Author | Zhang, Li |
Affiliation | 1.Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 5.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China 6.Guizhou Univ, Coll Phys, Guiyang 550025, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, Li,Mi, Li-Gong,Xu, Long,et al. Adaptive scale model reconstruction for radio synthesis imaging[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(3):11. |
APA | Zhang, Li.,Mi, Li-Gong.,Xu, Long.,Zhang, Ming.,Li, Dan-Yang.,...&Zhong-Zu Wu.(2021).Adaptive scale model reconstruction for radio synthesis imaging.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(3),11. |
MLA | Zhang, Li,et al."Adaptive scale model reconstruction for radio synthesis imaging".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.3(2021):11. |
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