校园区域似大地水准面精化研究

Research on area quasi-geoid refinement in campus

在校园实验区域内布设公共点,用GPS与水准仪精确测定公共点的大地高与正常高,采用等值线法结合CASS软件绘制实验区域似大地水准面的精化模型,由模型获取的正常高,并用水准方法测量其正常高,通过实验验证,可以用GPS-RTK直接获取地面的正常高。

Setting up common points in the experimental area of campus, the common points of the geodetic height and the normal height were precisely measured with GPS and leveling instrument, the refined model of quasi-geoid was drew using contour method and CASS software in the experimental area obtaining the normal height from the model, the normal height was measured with the leveling method, and experimental verified that the normal height were obtained directly using GPS-RTK.