参心坐标系测绘成果向2000国家大地坐标系转换的研究

发布时间：2018-04-27 14:10

本文选题：坐标转换 + 分区转换法　；参考：《长安大学》2013年硕士论文

【摘要】：随着空间测量技术的普及和精度的进一步提高，，传统的大地测量工作发生了质的变化，促使大地坐标系由参心坐标系向地心坐标系转化。自2008年7月1日起，我国全面启用地心坐标系统—2000国家大地坐标系，这意味着国家及各省市的测绘活动必须在地心坐标系下进行。此前全国各种测绘成果绝大部分采用参心坐标系成果。要采用地心坐标系，存在着两个坐标系的差异问题，必须进行坐标系的转换。因此，完成现行参心坐标系成果向2000国家大地坐标系转换是使用和推广2000国家大地坐标系的一项重要工作。本论文介绍了坐标系相关的理论知识，诠释了我国现行国家大地坐标系的相关情况。在结合大地测量应用技术及已有资料成果的基础上，根据控制点的分布情况，分别采用分区转换法和整体转换法等多种坐标转换模型，计算格网点坐标转换改正量。通过比较两种转换方法的优缺点，最后提出采用整体转换法计算全国高精度高分辨率格网改正量的方法。本文重点研究了1980西安坐标系向2000国家大地坐标系格网改正量计算。利用内插法和空点法对格网改正量的内符合性进行精度检验，通过绘制改正量分量DB、DL立面图检验改正量的连续性。简单论述了利用1954年北京坐标系转换到1980西安坐标系已有的成熟、高精度的方法（坐标改正量法），计算1954年北京坐标系转换2000国家大地坐标系格网改正量的方法。
[Abstract]:With the popularization of the spatial survey technology and the further improvement of the precision, the traditional geodetic work has undergone qualitative changes, which promotes the transformation of the geodetic coordinate system from the reference coordinate system to the geocentric coordinate system. Since July 1, 2008, the national geodetic coordinate system -2000 has been fully used in China, which means that the surveying and mapping activities of the country, provinces and cities must be carried out in the geocentric coordinate system. Before that, most of the surveying and mapping achievements in China were based on the results of the reference coordinate system. In order to adopt the geocentric coordinate system, there exists the difference between the two coordinate systems, so the coordinate system must be transformed. Therefore, it is an important work to use and popularize the 2000 national geodetic coordinate system to complete the transformation from the current reference coordinate system to the 2000 national geodetic coordinate system. This paper introduces the theoretical knowledge of coordinate system and explains the current situation of national geodetic coordinate system in China. Based on the application of geodesy technology and the existing data, according to the distribution of control points, several coordinate transformation models, such as partition transformation method and integral transformation method, are used to calculate the grid dot coordinate transformation correction. By comparing the merits and demerits of the two conversion methods, a method of calculating the high precision and high resolution grid corrections of the whole country by using the integral transformation method is put forward. This paper focuses on the calculation of grid corrections from 1980 Xi'an coordinate system to 2000 national geodetic coordinate system. The interpolation method and the space-point method are used to test the accuracy of the inner conformance of the grid corrections, and the continuity of the corrections is verified by drawing the DB-DL elevation diagram of the correction components. This paper briefly discusses the mature and high precision method (coordinate correction method) which has been used to convert Beijing coordinate system in 1954 to Xi'an coordinate system in 1980. The method of calculating the grid correction of 2000 national geodetic coordinate system in Beijing coordinate system in 1954 is discussed.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P226.3

【引证文献】