基于CGCS2000的平面坐标系的选取  

Selection of plane coordinate system based CGCS2000

作　　者：谭清华 曾祥新 冷春生 周卿 

机构地区：[1]南宁市勘察测绘地理信息院,南宁530000

出　　处：《测绘科学》2013年第4期10-11,共2页Science of Surveying and Mapping

摘　　要：本文研究了CGCS2000启用后选择城市平面坐标系的方法,提出了以大地高分布数据上投影变形符合限差的点数百分比最大为重要准则,用于选取城市平面坐标系的方法。并以N市为例,利用N市大地高分布数据进行验证,相比常规方法,该方法能更全面、客观地反映区域地形起伏等因素对长度变形产生的影响。The method of selection on plane coordinate system after using CGCS2000 was studied ill this paper. With the impor- tant criteria that the number of points whose projection distortion in the geodetic height distribution data meets the tolerance is maxi- mum, the method of selecting the plane coordinate system was brought forward. And taking Nanning for instance, the methods was vali- dated with the distribution data of the geodetic height, comparing with the conventional method, the new method could comprehensivcly reflect the impact of the topography and other factors on length deformation.

关 键 词：CGCS2000 投影变形 抵偿高程面 任意带中央子午线 

分 类 号：P282.2[天文地球—地图制图学与地理信息工程]