基于partial-EIV模型的WTLS算法在三维坐标变换中的应用  

Application of WTLS Based on partial-EIV Model in Three-dimensional Coordinate Transformation

作　　者：王东阁[1,2] 邱卫宁[1,2] 王刘准[1,2] 赵杰[1,2] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079 [2]武汉大学灾害监测与防治研究中心,武汉市珞喻路129号430079

出　　处：《测绘地理信息》2015年第5期8-12,共5页Journal of Geomatics

基　　金：国家自然科学基金资助项目(41174010;41374011)

摘　　要：通过考虑系数矩阵各个元素之间的关系,推导了基于partial_EIV模型附有相对权比的WTLS算法,并通过解算三维基准转换模型和求取ITRF框架转换参数验证其可行性。算例证明,基于partial_EIV模型的WTLS算法能够更快得到更合理的结果。In this paper,the WTLS algorithm based on partial-EIV model is deduced with our considering the relationship of the various elements in coefficient matrix. And the improved method is proved by the calculation of the three-dimensional small angle datum transformation model and the acquisition of the ITRF frame transformation parameters. Numerical example proves that the WTLS algorithm based on partial-EIV model is faster in calculation and the results obtained are more reasonable.

关 键 词：partial_EIV模型 WTLS算法 小角度基准转换 

分 类 号：P226.3[天文地球—大地测量学与测量工程]