IMPROVING THE PRECISION OF ASTROMETRY FOR SPACE DEBRIS
文献类型：期刊论文
| 作者 | Sun, Rongyu; Zhao, Changyin; Zhang, Xiaoxiang |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 147期号:3页码:0 |
| 关键词 | astrometry methods: data analysis techniques: image processing |
| ISSN号 | 0004-6256 |
| 英文摘要 | The 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | FOLLOW-UP OBSERVATIONS ; IMAGE-RECONSTRUCTION ; ORBIT IMPROVEMENT ; SOURCE EXTRACTION ; OPTICAL SURVEYS ; GEO OBJECTS ; SOFTWARE ; SEARCH ; MOTION |
| 收录类别 | SCI |
| 原文出处 | 10.1088/0004-6256/147/3/58 |
| 语种 | 英语 |
| WOS记录号 | WOS:000331125600013 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10601]  |
| 专题 | 紫金山天文台_空间目标与碎片观测研究基地 |
| 作者单位 | Chinese Acad Sci, Purple Mt Observ, Key Lab Space Object & Debris Observat, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：紫金山天文台
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