摘要
GPS测量中,无法直接利用GPS测量高程代替水准高程,必须采用高程拟合方法将GPS大地高转换成正常高。本文介绍了几种GPS高程拟合方法的理论模型,在此基础上通过实例比较分析了这几种模型的适用性及精度的可靠性,最后得出一些有益的经验。
In GPS Surveying, the GPS elevation can＇ t replace leveling height, so it＇ s necessary to convert GPS geodetic height to normal height. The article introduced some theoreti- cal models of GPS elevation fitting, analyzed the models＇ ap- plicability, and evaluated the precision. At last, several benefi- cial conclusions were derived
出处
《测绘地理信息》
2013年第3期32-35,共4页
Journal of Geomatics
关键词
GPS
高程异常
高程拟合
精度
GPS
elevation anomaly
elevation fitting
precision
