摘要
为了验证三维七参数和二维七参数坐标转换模型的可靠性,严格推导三维七参数及二维七参数转换模型,并用IGS站数据进行检验。结果表明,由三维七参数和二维七参数转换模型求出的坐标参数与布尔沙模型求出的坐标参数存在着明显差异,证明用前两种模型求解的坐标转换参数只是普通的回归参数,它们不再具有坐标旋转、平移、缩放的实际意义,但均可以用于大区域坐标转换。
For checking the reliability of the 3D seven-parameter and 2D seven-parameter coordinate transformation model,they are deduced strictly and verified by the datum from IGS stations. The results show that the coordinate transformation parameters calculated by 3D model and 2D model are different than the ones calculated by Bursa model obviously,and it is proved that the coordinate transformation parameters calculated by 3D model and 2D model are common regression parameters only,they no longer have the practical significance of coordinate rotation,translation and scaling,but both of them can be used in large regional coordinate transformation.
作者
王仲锋
申景贇
赵达
WANG Zhongfeng;SHEN Jingyun;ZHAO Da(School of Prospecting and Surveying Engineering,Changchun Institute of Technology,Changchun 130021,China;Changchun Institute of Surveying and Mapping,Changchun 130021,China)
出处
《测绘与空间地理信息》
2019年第3期19-23,30,共6页
Geomatics & Spatial Information Technology
关键词
坐标转换
三维七参数坐标转换模型
二维七参数坐标转换模型
布尔沙模型
coordinate transformation
3D seven-parameter coordinate transformation model
2D seven-parameter coordinate transformation model
Bursa model
作者简介
王仲锋(1962-),男,山东曹县人,教授,博士,2007年毕业于北京林业大学森林经理学专业,主要从事工程测量方面的教学与科研工作。
