全球定位系统2012，Vol.37Issue(1)：74-77,4.
格网内插法坐标转换
The Method of Grid Interpolation Coordinate Transformation
张成校 1顾和和1
作者信息
- 1. 中国矿业大学环境与测绘学院,江苏徐州221008
- 折叠
摘要
Abstract
In the astro-geodetic network of our country, large local systematic error and accumulative error exist, it is always the case that large residuals still remain after the transition to coordinate system adopting Bursa model. In order to improve transfor- mation accuracy, the transformation area is divided into small grid cells, then the coor- dinate transformation correction of each grid node is computed adopting mathematical model, finally, the coordinate correction of any place can be gotten by grid interpola- tion, and the coordinate transformation is achieved. In this paper, Bursa 7 parameters method and grid interpolation method were used for coordinate transformation on the same area, and the result is that the transformation precision of grid interpolation meth- od is significantly higher than Bursa 7 parameters method.关键词
格网内插/坐标转换/数学模型Key words
Grid interpolation/coordinate transformation/mathematical model分类
天文与地球科学引用本文复制引用
张成校,顾和和..格网内插法坐标转换[J].全球定位系统,2012,37(1):74-77,4.
