综合利用水准高程与高差观测值拟合GPS点高程的模型与结果分析  

A GPS Height Interpolation Model Based on Integrated Observation of Height and Height Difference and Its Result Analysis

作　　者：沈云中[1] 宋涛 周全基 张兴福[1] 

机构地区：[1]同济大学测量系,上海200092 [2]铁道第三勘察设计院,天津300251

出　　处：《工程勘察》2003年第4期42-44,共3页Geotechnical Investigation & Surveying

摘　　要：在已知水准点稀少的西部山区的铁路或公路勘测中 ,减少联测水准点的工作量具有重要意义。因此 ,本文给出了综合利用GPS点的高差和高程观测值拟合高程异常的方法 ,分析了几种线路高程拟合的特殊情况 ,并利用京沪高速铁路的GPS实测数据对本文的模型进行了验算 。To reduce the field works in benchmark connection is very meaningful in railway or highway exploration in the west China's mountainous areas where benchmark is rarely available.This paper gives a GPS height interpolation model based on the integrated observations of heights and height differences.Some special cases in line shaped railway GPS height interpolation are analyzed,and the model has been verified by the actual GPS network found in Beijing to Shanghai express railway exploration.

关 键 词：GPS水准 高程拟合 铁路 公路勘测 京沪高速铁路 

分 类 号：P228.4[天文地球—大地测量学与测量工程]