CGCS2000与城市坐标系转换方法的比较  

Comparison of Coordinate Transformation Methods Between CGCS2000 and Urban Coordinate System

作　　者：岳颖 高付才[2] 赵鑫[3] 尹伟言[2] YUE Ying

机构地区：[1]河南测绘职业学院,河南郑州450015 [2]国家测绘地理信息局第一大地测量队,陕西西安710054 [3]国家测绘地理信息局测绘标准化研究所,陕西西安710054

出　　处：《地理空间信息》2019年第12期82-84,88,I0002,共5页Geospatial Information

摘　　要：讨论了平面四参数模型、仿射六参数模型和多项式逼近3种坐标转换模型,利用某城市实测数据对这3种模型进行比较与分析。结果表明,当城市坐标系存在一定系统误差和局部变形时,采用多项式逼近法可以提高坐标转换精度,要优于另外2种模型。In this paper,we discussed three kinds of coordinate transformation models,such as four parameter plane method,affine six parameter method and polynomial approximation method,and used the measured data of a certain city to compare and analyze the three models.The result shows that when the urban coordinate system in a certain system error and the local deformation,using polynomial approximation method can improve the precision of coordinate transformation,and better than the other two models.

关 键 词：坐标转换 平面四参数法 仿射六参数法 多项式逼近法 

分 类 号：P226.3[天文地球—大地测量学与测量工程]