坐标系转换中基于象限分布的公共点选取方法  

Common point selection in coordinate transformation based on the distribution in quadrant

作　　者：李金涛[1] 王微 石波[1] LI Jintao;WANG Wei;SHI Bo(College of Geomaties,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《测绘工程》2018年第7期66-70,共5页Engineering of Surveying and Mapping

摘　　要：坐标转换中转换参数的求解精度与公共点的分布和精度有关。文中提出一种选择公共点的方法——基于公共点象限分布的选择方法,在各公共点点位精度相同时可以找到数目较少且分布最佳的公共点以求得最优的转换参数,用两组模拟数据对该方法进行实验验证,对比分析该方法的可行性。本案对实际工程公共点布设方案的设计和选择具有指导作用。The precision of transfer parameters in coordinate transformations is connected with the distribution and precision of the common points.This paper proposes an effective method to guide the selection of common points based on their distribution.With this method the optimum composition method of the points can be selected and the transfer parameters with high precision can be obtained.In order to demonstrate the feasibility of this method,this paper uses two groups of simulated data to test and draw the conclusions.This method can be used for guiding the design and selection of common points in practice.

关 键 词：三维坐标转换 公共点选取 象限分布 转换精度 转换参数 

分 类 号：P226.3[天文地球—大地测量学与测量工程]