Institutional Repository of Radio Astronomy Research Laboratory
| An adaptive loop gain selection for CLEAN deconvolution algorithm | |
Zhang, Li1; Xu, Long2; Zhang, Ming3,4 ; Wu, Zhong-Zu5
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| 2019-06-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 19Issue:6Pages:79 |
| Contribution Rank | 3 |
| Abstract | Radio interferometry significantly improves the resolution of observed images, and the final result also relies heavily on data recovery. The Cotton-Schwab CLEAN (CS-Clean) deconvolution approach is a widely used reconstruction algorithm in the field of radio synthesis imaging. However, parameter tuning for this algorithm has always been a difficult task. Here, its performance is improved by considering some internal characteristics of the data. From a mathematical point of view, a peak signal-to-noise-based (PSNR-based) method was introduced to optimize the step length of the steepest descent method in the recovery process. We also found that the loop gain curve in the new algorithm is a good indicator of parameter tuning. Tests show that the new algorithm can effectively solve the problem of oscillation for a large fixed loop gain and provides a more robust recovery. |
| Keyword | methods: data analysis techniques: image processing techniques: interferometric |
| DOI | 10.1088/1674-4527/19/6/79 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Open Research Program of the CAS Key Laboratory of Solar Activity[KLSA201805] ; Guizhou Science & Technology Plan Project[[2017] 5788] ; Youth Science & Technology Talents Development Project of Guizhou Education Department[KY[2018] 119] ; National Science Foundation of China[11103055] ; National Science Foundation of China[11773062] ; National Science Foundation of China[61605153] ; Light of West China Programme[RCPY201105] ; Light of West China Programme[2017-XBQNXZ-A-008] ; National Basic Research Program of China (973 program)[2012CB821804] ; National Basic Research Program of China (973 program)[2015CB857100] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000470875400004 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | Open Research Program of the CAS Key Laboratory of Solar Activity ; Guizhou Science & Technology Plan Project ; Youth Science & Technology Talents Development Project of Guizhou Education Department ; National Science Foundation of China ; Light of West China Programme ; National Basic Research Program of China (973 program) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/2806 |
| Collection | 射电天文研究室_星系宇宙学研究团组 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Corresponding Author | Zhang, Li |
| Affiliation | 1.Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Guizhou, Peoples R China 2.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, 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.Guizhou Univ, Coll Phys, Guiyang 550025, Guizhou, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Li,Xu, Long,Zhang, Ming,et al. An adaptive loop gain selection for CLEAN deconvolution algorithm[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(6):79. |
| APA | Zhang, Li,Xu, Long,Zhang, Ming,&Wu, Zhong-Zu.(2019).An adaptive loop gain selection for CLEAN deconvolution algorithm.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(6),79. |
| MLA | Zhang, Li,et al."An adaptive loop gain selection for CLEAN deconvolution algorithm".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.6(2019):79. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhang_2019_Res._Astr（1387KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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