测绘科学技术学报2025，Vol.41Issue(2)：111-116,6.DOI:10.3969/j.issn.1673-6338.2025.02.001
基于Bursa模型的1980西安坐标系向2000国家大地坐标系转换方法研究
Research on the Coordinate System Transformation Method from 1980 Xi'an Coordinate System to CGCS2000 Based on Bursa Model
摘要
Abstract
On the basis of elaborating on the coordinate system transformation method of the Bursa model,a method by calculating the EGM2008 height anomaly for compensating the 1980 Xi'an coordinate system elevation because of the lack of geodetic height in the 1980 Xi'an coordinate system in the three-dimensional benchmark transforma-tion from the 1980 Xi'an coordinate system to CGCS2000 is proposed,which could improve the model transforma-tion accuracy.Taking a certain province as an example,three coordinate transformation schemes for 2 156 common control points collected with two sets of coordinate systems are designed using the developed coordinate system transformation software,to calculate the parameters of the Bursa model and transform the coordinate system.At the same time,the characteristics of coordinate transformation discrepancies are analyzed.The results show that the method proposed in this paper has effectively improved the accuracy compared with the traditional Bursa model co-ordinate transformation method.关键词
坐标转换/三维基准转换/布尔莎模型/国家大地坐标系/高程异常Key words
coordinate transformation/three dimensional datum transformation/Bursa model/CGCS2000/height anomaly分类
测绘与仪器引用本文复制引用
肖杰..基于Bursa模型的1980西安坐标系向2000国家大地坐标系转换方法研究[J].测绘科学技术学报,2025,41(2):111-116,6.基金项目
山西省测绘地理信息院科技资助项目(2024-KK1). （2024-KK1）
