摘要
该文从分析高程系统换算的不确定性开始,结合工程实例数据,对高程拟合计算模型的选择和可能达到的预期精度的必要条件作了探讨。接着对影响GPS高程拟合精度的各种因素进行了分析。
The article analyzes the indeterminacy in the conversion of elevation system and discusses the selection of the elevation fitting calculation model and the necessary conditions possibly to reach the expected precision according to the measured data of the projects,and then analyzes various factors influencing GPS elevation fitting precision.
出处
《城市道桥与防洪》
2010年第2期149-151,154,共4页
Urban Roads Bridges & Flood Control
关键词
GPS高程数据
工程测量
应用
探讨
GPS elevation data,engineering measurement,application,discussion
