%0 Journal Article
%T COMBINED METHOD FOR DATUM TRANSFORMATION CONSIDERING STOCHASTIC ERROR AND LOCAL DEFORMATION<br>顾及随机误差和局部变形误差的坐标组合转换法
%A Zeng Anmin
%A Zhang Liping
%A <br>曾安敏
%A 张丽萍
%J 大地测量与地球动力学
%D 2012
%I 
%X The different coordinate systems mean different geophysical concept.In the geodetic network the local deformation and accumulation error exist,and there are stochastic value in the common points with the different coordinate.So the coordinate transformation from low precise coordinate frame to the high one can not approve a high precise reference frame after this transformation.A combined method based on variance component estimation using similarity transformation and regressive approximating is presented.For the local error accumulation and distortion and the stochastic value of the common points,the accuracy of coordinate system is improved after the transformation with the combined method from Xi’an Geodetic Coordinate System 1980(XAS80) to China Geodetic Coordinate System 2000(CGCS2000).
%K coordinate transformation
%K combined method
%K variance component
%K XAS80
%K CGCS2000<br>坐标转换
%K 组合变换
%K 方差分量
%K 2000国家大地坐标系
%K 1980西安坐标系
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=28538CA98C300078A222A41F2C7DB86C&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=2B5DE8A23DCEED39&eid=AE09EACBCD1B2A13&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=0&reference_num=0