摘要
以西江下游工程为例,根据基于重力场模型的GPS高程拟合的原理进行多种模型拟合计算,比较了各种模型的拟合精度,基于EGM2008重力场模型的GPS高程拟合精度能够提高高程拟合精度,可达到规范要求。
Taking the downstream engineering of Xijiang River as an example,a variety of model fitting calculation was carried out according to the principle of GPS elevation fitting based on gravity field model,and the fitting accuracy of each models were analyzed and compared.Based on the EGM2008 gravity field model,the precision of GPS elevation fitting could improve the accuracy of elevation fitting,which could meet the requirements of specification.
出处
《人民珠江》
2017年第12期68-70,共3页
Pearl River
关键词
重力场模型
GPS高程拟合
精度分析
gravity field model
GPS elevation fitting
accuracy analysis
