二次曲面拟合GPS高程在台山水库灌区的应用  

GPS Elevation Fitting Quadratic Surface in Taishan Reservoir Irrigation Area

作　　者：林固记 

机构地区：[1]广东省水利水电第三工程局,广东中山528437

出　　处：《北京测绘》2014年第2期44-46,共3页Beijing Surveying and Mapping

摘　　要：论述了二次曲面拟合GPS高程的基本原理,通过工程实例分析了不同的公共点分布方案对拟合结果的影响,验证了二曲面拟合似大地水准面求取正常高的可行性,总结了影响GPS高程拟合精度的主要因素,并在水利工程建设中进行了实际应用。This paper discusses the basic principles of GPS elevation fitting quadratic surface, through engineering analysis of the effects of different examples of public point distribution scheme for fitting results, verifies that the two surface fit- ting Geoid feasibility of obtaining normal, summarizes the main factors affecting the accuracy of GPS Elevation Fitting. It applied in water conservancy construction.

关 键 词：二次曲面拟合 高程异常 GPS高程拟合 似大地水准面 

分 类 号：P228.4[天文地球—大地测量学与测量工程]