QQ客服 官方微博 反馈留言

	FLAT-FIELDING OF SOLAR Hα OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION
	Xu,Gao-Gui1; Zheng,Sheng1; Lin,Gang-Hua2; Wang,Xiao-Fan2
刊名	The Astrophysical Journal
	2016-08-18
卷号	827期号:2
关键词	astroparticle physics methods: observational Sun: photosphere techniques: image processing
ISSN号	0004-637X
DOI	10.3847/0004-637X/827/2/137
英文摘要	ABSTRACT The flat-field CCD calibration method of Kuhn et al. (KLL) is an efficient method for flat-fielding. However, since it depends on the minimum of the sum of squares error (SSE), its solution is sensitive to noise, especially non-Gaussian noise. In this paper, a new algorithm is proposed to determine the flat field. The idea is to change the criterion of gain estimate from SSE to the maximum correntropy. The result of a test on simulated data demonstrates that our method has a higher accuracy and a faster convergence than KLL’s and Chae’s. It has been found that the method effectively suppresses noise, especially in the case of typical non-Gaussian noise. And the computing time of our algorithm is the shortest.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-827-2-137
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/36343]
专题	中国科学院国家天文台
作者单位	1.College of Science, China Three Gorges University, Hubei, Yichang 443002, China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式 GB/T 7714	Xu,Gao-Gui,Zheng,Sheng,Lin,Gang-Hua,et al. FLAT-FIELDING OF SOLAR Hα OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION[J]. The Astrophysical Journal,2016,827(2).
APA	Xu,Gao-Gui,Zheng,Sheng,Lin,Gang-Hua,&Wang,Xiao-Fan.(2016).FLAT-FIELDING OF SOLAR Hα OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION.The Astrophysical Journal,827(2).
MLA	Xu,Gao-Gui,et al."FLAT-FIELDING OF SOLAR Hα OBSERVATIONS BASED ON THE MAXIMUM CORRENTROPY CRITERION".The Astrophysical Journal 827.2(2016).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。