摘要
对于Bursa模型,7参数模型相对于3参数模型更严密,但存在局部区域内参数不稳定且难于确保参数在控制点外围区域的转换精度。本文利用仿真试验检验3参数模型与7参数模型的精度、稳定性与所用公共点的控制范围的关系,得出了模型的选择方法。
In Burs, compared with 3-parameter model, 7-parameter is more strictly. But it has the problems that the parameters are instable locally and hard to ensure the transformation accuracy in the area outside control points. In the paper, the accuracy, stability and the relation with the control points range of 3-parameter and 7-parameter models are verified by simulation test. The method of choosing model is obtained.
出处
《测绘科学》
CSCD
北大核心
2008年第2期96-97,共2页
Science of Surveying and Mapping
基金
国家自然科学基金资助项目(40371097)
关键词
BURSA模型
坐标转换
转换参数
Bursa model
coordination transformation
transformation parameter
