区域似大地水准面精化中几个问题的探讨

Some Problems in the Refinement on the Local Quasi-geoid

精确确定高精度、高分辨率似大地水准面,是建立现代大地测量基准和地理空间基础框架的基础性工作。全球定位系统(GPS)技术结合高精度、高分辨率的区域似大地水准面模型,可以取代传统的低等级水准测量,真正实现GPS定位技术的三维定位功能。基于此,文中就高精度区域似大地水准面精化应注意的一些问题进行了探讨,以供有关单位在精化区域似大地水准面时参考。

To determine the high precision and resolution quasi-geoid is a basic job for the establishment of a modern geodetic survey datum and geographical spatial basic frame. The GPS technique, combined with the high precision local quasi-geoid model; can replace the traditional low-grade leveling, and realize the 3D GPS positioning function. ：Based on this, some refinement problems of high precision local quasi-geoid are discussed.