摘要
介绍GPS水准高程拟合的原理和方法及其影响GPS水准高程拟合精度的几个误差因素，为研究其在工程实践中的应用及精度，对轨道交通GPS高程测量数据进行了分析研究，计算结果表明：在平坦地区GPS水准可达到毫米级精度，能够满足轨道交通工程施工测量的需要。
The principle and method of GPS height matching and the error factors of affecting its precision are introduced in this paper． In order to study its application and precision in engineering the GPS height data of Wuhan No．1 Rapid Rail Transit Engineering are analyzed． It is proved that millimeter height accuracy can be achieved in plainly area and GPS height matching accuracy can meet the needs of the construction of wuhan No．1 Rapid Rail Transit Engineering．
出处
《黑龙江工程学院学报》
CAS
2001年第1期32-35,共4页
Journal of Heilongjiang Institute of Technology
基金
武汉市横向科研项目
关键词
GPS水准
武汉
轨道交通
精度
测量
GPS levelling
height abnormality
matching
precision analysis
