摘要
国内外应用GPS定位技术,大都局限于解决平面坐标问题,高程测量仍旧沿用常规的几何水准测量方法来测定。因此,未能充分发挥GPS三维坐标测量的优势。本文通过分析在GPS高程中的关键技术———确定高程异常的方法来讨论几种GPS的高程解算方法。
At present, the GPS pointing technology is mainly used to solve the problem of horizontal coordinate at home and abroad. But the elevation serveying is still done by a common method, the spirit leveling. Therefore, the advantage of GPS threedimension coordinate surveying can't become visible. Several GPS elevation solving methods are discussed by analyzing the key technology in GPS elevation transforming used to decide the elevation.
关键词
GPS
高程异常
大地高
GPS
elevation abnormality
geodetic elevation
