Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope

	Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope
	Li, Jinling1 ; Xiong, Fuwen 2; Yu, Chenglei 3; Zhang, Jinwei 1,4; Guo, Li1 ; Fan, Qingyuan 1
刊名	CHINESE SCIENCE BULLETIN
	2014-07-01
卷号	59 期号:21 页码:2558-2567
关键词	VLBI Radio telescope Reference point Axis-offset Local survey
英文摘要	A local survey was implemented at the newly constructed Shanghai Tianma 65-m radio telescope. In this article, the survey implementation and data analysis are described. Particularly, by application of coordinate transformation, dimensionality reduction and step fitting of parameters, as well as adoption of reliability test measures of parameters, the mathematical model of data analysis is simplified, the detrimental effects of observation noises and unevenly spatial coverage of sample points are effectively compressed, the stability and precision of parameter solutions are improved, and so the geocentric three-dimensional coordinates of the reference point of this telescope in the precision of millimeters were determined, and the axis-offset was shown not significant on the precision level of 3 mm. The outcome provides important reference to the subsequent activities of antenna maintenance and scientific application, including the establishment of precise antenna orientation model, orientation guidance, fringe searching in data cross-correlation, analysis and application studies of VLBI observations. It is also important archive data for monitoring possible subsidence and lateral displacement of antenna foundation as well as deformation of antenna tracking-rail and structure.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	MODELS
收录类别	SCI
语种	英语
WOS记录号	WOS:000338127100009
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/16226]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Shanghai Inst Geol Survey, Shanghai 200072, Peoples R China 3.Shanghai Tech Ctr Leica Geosyst, Shanghai 201203, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinling,Xiong, Fuwen,Yu, Chenglei,et al. Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope[J]. CHINESE SCIENCE BULLETIN,2014,59(21):2558-2567.
APA	Li, Jinling,Xiong, Fuwen,Yu, Chenglei,Zhang, Jinwei,Guo, Li,&Fan, Qingyuan.(2014).Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope.CHINESE SCIENCE BULLETIN,59(21),2558-2567.
MLA	Li, Jinling,et al."Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope".CHINESE SCIENCE BULLETIN 59.21(2014):2558-2567.