全球定位系统Issue(3)：46-50,5.DOI:10.13442/j.gnss.1008-9268.2015.03.011
半参数模型在平面坐标转换中的应用
The Application of Semiparametric Model in the Plane Coordinate Transformation
赵富燕 1孙李城 1杨兆臣1
作者信息
- 1. 山东科技大学测绘科学与工程学院，山东青岛 266590
- 折叠
摘要
Abstract
Coordinate transformation has been playing an essential role in surveying and mapping field ,and the selection of model restrict the precision of the transformation directly , generally what we use in the coordinate transformation is similarity transformation (Hermert transformation) method ,among them the four parameters model is commonly used in the plane coordinate transformation .when the system error cannot be ignored ,however ,the re‐sult the model get is not ideal .This paper applys a new model ,namely the semiparametric model to the plane coordinate transformation ,both the parameter model and semiparametric model were used in experimental data processing ,as well as comparison and analysis .Exper‐iment result show that Semiparametric model is more accurate and effective than traditional parameter model in dealing with data that cntains system error in plain coordinate transfor‐mation .关键词
半参数模型/补偿最小二乘/正则矩阵R/平滑因子α/平面坐标转换Key words
Semiparamertic model/penaliezd least squares/regularization matrix R/the smoothing factor α/plane coordinate transformation分类
天文与地球科学引用本文复制引用
赵富燕,孙李城,杨兆臣..半参数模型在平面坐标转换中的应用[J].全球定位系统,2015,(3):46-50,5.
