基于CORS的高精度实时坐标转换方法探究

Discussion on feasibility of high-precision real-time coordinate conversion based on CORS

通过区域坐标转换将GPS测量成果转化为1980年国家大地坐标系或CGCS2000国家大地坐标系下的平面直角坐标,在测量中尤为重要。CORS系统的坐标转换虽存在诸多不足,但基于CORS能够实现双向数据通信。文章根据狄洛尼(Delaunay)三角形构建基准站网络的特点,提出了通过实时获取坐标转换参数而获得高精度平面坐标的方法,从数据分析和理论的角度进行了可行性探究。

It＇s particularly important to convert GPS measurement results into planimetric rectangular coordinates under 1980 or CGCS2000national geodetic coordinate system through area coordinate conversion.Although the CORS system has several deficiencies in coordinate conversation,it allows bi-directional data communication.In the paper,based on the characteristic of constructing the base station network according to Delaunay triangle,a method was proposed to achieve high-precision coordinate conversion with real-time coordinate conversion parameters based on CORS.At last,the feasibility of the method was analyzed.