用MAPGIS软件进行北京54坐标系与西安80坐标系的转换  

Discussion on transformation between Xi’an 1980 and Beijing 1954 coordinate system using MAPGIS software

作　　者：李洪早 

机构地区：[1]贵州省有色金属和核工业地质勘查局二总队,六盘水553004

出　　处：《矿产勘查》2013年第1期79-81,共3页Mineral Exploration

摘　　要：为了更好地解决1954北京坐标系与1980西安坐标系之间的新旧坐标成果转换问题,文章通过采用MAPGIS软件下的坐标系转换功能,采用3种参数进行北京54坐标及西安80坐标系之间转换。经过对实践数据的精度分析比较后,得出如下结论:三参数布尔莎模型转换坐标精度较低,不宜采用;七参数布尔莎模型转换坐标精度高,能达到毫米级别误差,测区周边有公共点的情况下,利用七参数布尔莎模型进行坐标系转换较好。In order to find the better solution for the conversion between the old Beijing 1954 coordinate system and the new Xi＇ an 1980 coordinate system, the author chooses three parameters for conversion between these two coordinate systems by using coordinate system conversion function of the MAPGIS software in this paper. According to precision analysis result of practical data, the following conclusions are made： 1 ） the three- parameter Bursa model＇ s precision is relatively lower, therefore it should not be used; 2） The seven - parameters Bursa model＇ s precision is relatively higher, which could reach millimeter - level error, so it had better convert the coordinate system by using seven -parameter Bursa model when the measured area has common points in the boundaries.

关 键 词：北京54坐标系 西安80坐标系 坐标转换MAPGIS 

分 类 号：P623.6[天文地球—地质矿产勘探]