| 均值漂移算法在LAMOST动态选星中的应用 |
| |
| 引用本文： | 任间,王坚,李锋,黄鲲,朱利平,姚仰光,袁海龙,金革.均值漂移算法在LAMOST动态选星中的应用[J].天文学报,2007,48(4):500-506. |
| |
| 作者姓名： | 任间 王坚 李锋 黄鲲 朱利平 姚仰光 袁海龙 金革 |
| |
| 作者单位： | 中国科学技术大学,合肥,230026 |
| |
| 基金项目： | 国家重大科学工程项目;国家自然科学基金 |
| |
| 摘 要： | 将均值漂移算法运用于LAMOST动态选星过程,用以寻找局部天区内观测目标密度最高的区域进行观测.通过模拟试验分析了在不同的天区覆盖方法对均值漂移算法观测效率的影响,并与使用最大密度算法得到的结果进行了比较,证实了均值漂移算法的优越性.
|
| 关 键 词： | 天文仪器 方法与技术 望远镜 方法 数值 |
| 修稿时间： | 2006-05-29 |
Application of Mean Shift Algorithm for Dynamic-Object-Selection of LAMOST |
| |
| REN Jian,WANG Jian,LI Feng,HUANG Kun,ZHU Li-ping,YAO Yang-guang,YUAN Hai-long,JIN Ge.Application of Mean Shift Algorithm for Dynamic-Object-Selection of LAMOST[J].Acta Astronomica Sinica,2007,48(4):500-506. |
| |
| Authors: | REN Jian WANG Jian LI Feng HUANG Kun ZHU Li-ping YAO Yang-guang YUAN Hai-long JIN Ge |
| |
| Institution: | University of Science and Technology of China, Hefel, 230026 |
| |
| Abstract: | The large sky area multi-object fiber spectroscopic telescope(LAMOST)is one of the major nation scientific projects of China.The 4m large aperture,5 degree field of view and 4000 fibers make LAMOST the most powerful optical spectrum survey telescope in the world. It is an important task to make good use of LAMOST,organize effective observation, improve observational efficiency and shorten observational cycle.For this sake,a new object selection algorithm named Dynamic-Object-Selection was put forward,which is based on the Priority-Policy. An important question in Dynamic-Object-Selection of LAMOST is to find a tile which has the maximum object density in the visible sky area.In this paper,Mean Shift Algorithm is applied to solve the problem.The simulations indicate that this algorithm is improving the Observation-Efficiency.At the same time,the speed of Dynamic-Object-Selection cal- culation is enhanced obviously. |
| |
| Keywords: | Astronomicel Instrumentation Methods and Techniques Telescopes Methods Numerical |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
