典型文献
Number and Distribution of Fiducial Fibers in a Spectroscopic Survey Telescope
文献摘要：
To date,the Large Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST)has been in operation for 12 yr.To improve the telescope's astronomical observation accuracy,the original open-loop fiber positioning system of LAMOST is in urgent need of upgrading.The upgrade plan is to install several fiber view cameras(FVCs)around primary mirror B to build a closed-loop feedback control system.The FVCs are 20 m from the focal surface.To reduce a series of errors when the cameras detect the positions of the optical fibers,we designed fiducial fibers on the focal surface to be fiducial points for the cameras.Increasing the number of fiducial fibers can improve the detection accuracy of the FVC system,but it will also certainly reduce the number of fiber positioners that can be used for observation.Therefore,the focus of this paper is how to achieve the quantity and distribution that meet the requirements of system detection.In this paper,we introduce the necessity of using fiducial fibers,propose a method for selecting their number and present several methods for assessing the uniformity of their distribution.Finally,we implement particle swarm optimization to find the best distribution of fiducial fibers.
文献关键词：
中图分类号：
作者姓名：
Shi-Peng Duan;Zeng-Xiang Zhou;Jia-Le Zuo;Meng-Tao Li;Zhi-Gang Liu;Hong-Zhuan Hu;Jian-Ping Wang;Xiang-Qun Cui;Yong Zhang;Hao-Tong Zhang
作者机构：
Department of Precision Machinery and Precision Instrumentation,University of Science and Technology of China,Hefei 230026,China;National Astronomical Observatories/Nanjing Institute of Astronomical Optics&Technology,Chinese Academy of Science,Nanjing 210042,China;CAS Key Laboratory of Astronomical Optics&Technology,Nanjing Institute of Astronomical Optics&Technology,Nanjing 210042,China;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China
文献出处：
引用格式：
[1]Shi-Peng Duan;Zeng-Xiang Zhou;Jia-Le Zuo;Meng-Tao Li;Zhi-Gang Liu;Hong-Zhuan Hu;Jian-Ping Wang;Xiang-Qun Cui;Yong Zhang;Hao-Tong Zhang-.Number and Distribution of Fiducial Fibers in a Spectroscopic Survey Telescope)[J].天文和天体物理学研究,2022(02):108-117
A类：
FVCs,positioners
B类：
Number,Distribution,Fiducial,Fibers,Spectroscopic,Survey,Telescope,To,date,Large,Sky,Area,Multi,Object,LAMOST,has,been,operation,yr,improve,telescope,astronomical,observation,accuracy,original,open,loop,positioning,system,urgent,need,upgrading,upgrade,plan,install,several,view,cameras,around,primary,mirror,build,closed,feedback,control,are,from,focal,surface,reduce,series,errors,when,positions,optical,fibers,we,designed,fiducial,points,Increasing,number,can,detection,will,also,certainly,that,used,Therefore,focus,this,paper,how,achieve,quantity,distribution,meet,requirements,introduce,necessity,using,propose,selecting,their,present,methods,assessing,uniformity,Finally,implement,particle,swarm,optimization,find,best
AB值：
0.550977
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