基于经纬度过渡法的独立坐标向国家统一坐标转换研究  

Research about Conversion of Independent Coordinate to National Coordinate Based on Latitude and Longitude Transition

作　　者：杨海波[1] 

机构地区：[1]昆明理工大学津桥学院,昆明650106

出　　处：《价值工程》2016年第23期264-265,共2页Value Engineering

摘　　要：区别于传统的四参数、七参数坐标转换法,本文提出了一种近似椭球经纬度过渡法,实现独立坐标系向国家坐标系转换。该方法顾及了椭球投影带来的非线性变换。通过数据验证对比,其精度优于一般的四参数转换法,对于提高生产实践中坐标成果转换精度有一定价值。Different from the traditional four parameters, seven parameter coordinate transformation method, this paper puts forward an approximate ellipsoid latitude and longitude transition method, to achieve independent coordinate to the national coordinate system conversion. This method takes into account the non-linear transformation caused by ellipsoid projection. Through data validation and comparison, its accuracy is better than the four-parameter conversion method. Therefore this method has a certain value in production to improve the accuracy of the coordinates transformation.

关 键 词：四参数 经纬度 近似椭球 

分 类 号：P2[天文地球—测绘科学与技术]