PMO OpenIR  > 空间目标与碎片观测研究基地
IMPROVING THE PRECISION OF ASTROMETRY FOR SPACE DEBRIS
Sun, Rongyu; Zhao, Changyin; Zhang, Xiaoxiang
2014-03-01
Source PublicationASTRONOMICAL JOURNAL
ISSN0004-6256
Volume147Issue:3Pages:0
AbstractThe data reduction method for optical space debris observations has many similarities with the one adopted for surveying near-Earth objects; however, due to several specific issues, the image degradation is particularly critical, which makes it difficult to obtain precise astrometry. An automatic image reconstruction method was developed to improve the astrometry precision for space debris, based on the mathematical morphology operator. Variable structural elements along multiple directions are adopted for image transformation, and then all the resultant images are stacked to obtain a final result. To investigate its efficiency, trial observations are made with Global Positioning System satellites and the astrometry accuracy improvement is obtained by comparison with the reference positions. The results of our experiments indicate that the influence of degradation in astrometric CCD images is reduced, and the position accuracy of both objects and stellar stars is improved distinctly. Our technique will contribute significantly to optical data reduction and high-order precision astrometry for space debris.
KeywordAstrometry Methods: Data Analysis Techniques: Image Processing
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-6256/147/3/58
WOS KeywordFOLLOW-UP OBSERVATIONS ; IMAGE-RECONSTRUCTION ; ORBIT IMPROVEMENT ; SOURCE EXTRACTION ; OPTICAL SURVEYS ; GEO OBJECTS ; SOFTWARE ; SEARCH ; MOTION
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000331125600013
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10601
Collection空间目标与碎片观测研究基地
AffiliationChinese Acad Sci, Purple Mt Observ, Key Lab Space Object & Debris Observat, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Sun, Rongyu,Zhao, Changyin,Zhang, Xiaoxiang. IMPROVING THE PRECISION OF ASTROMETRY FOR SPACE DEBRIS[J]. ASTRONOMICAL JOURNAL,2014,147(3):0.
APA Sun, Rongyu,Zhao, Changyin,&Zhang, Xiaoxiang.(2014).IMPROVING THE PRECISION OF ASTROMETRY FOR SPACE DEBRIS.ASTRONOMICAL JOURNAL,147(3),0.
MLA Sun, Rongyu,et al."IMPROVING THE PRECISION OF ASTROMETRY FOR SPACE DEBRIS".ASTRONOMICAL JOURNAL 147.3(2014):0.
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