基于COORD GM采用布尔莎模型实现沧州市80坐标到2000坐标的转换

Coordinate Transformation of Xi'an 80 to CGCS2000 in Cangzhou City Based on COORD GM Using Bursa Model

为实现沧州市地籍调查成果从1980西安坐标系转换到2000国家大地坐标系的目的,利用已知的三等GPS点成果作为基础数据,采用COORD GM软件选用布尔沙模型进行七参数求取,然后以四等GPS点进行检验,得出内外中误差分别为±0.008m和±0.004m,证明精度满足要求。

In order to achieve the purpose of coordinate transformation of Xi＇an 80 to CGCS2000 of the cadastral investigation results of Cangzhou,using three class GPS points known as the basic data, calculates seven parameters using Bursa model and COORD GM software, then inspects them as the four class GPS points, the mean square error of internal and external are ±0.008 m and ±0.004 m, the accuracy meets the requirements.