本地调查在最新构造的上海 Tianma 65-m 收音机望远镜被实现。在这篇文章,调查实现和数据分析被描述。由并列转变的申请,特别地,维数减小和参数的步试穿,以及可靠性的采纳测试参数的措施,数据分析的数学模型被简化,观察噪音的有害效果和样品点的不均匀的空间的范围有效地被压缩,参数解决方案的稳定性和精确被改进,引用的以地球为中心的三维的坐标因此这 telesc 指结果提供重要参考给天线维护和科学申请的随后的活动,包括精确天线取向模型,的建立取向指导,穗在数据寻找跨关联, VLBI 观察的分析和申请研究。它也是为监视可能的沉淀和天线基础以及天线轨道栏杆和结构的变丑的侧面的排水量的重要档案数据。
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 axisoffset 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.