摘要
对精密三角高程跨河水准的基本原理和实施方法进行介绍,通过实测项目结果分析可知,该方法能够较好的消除大气折射误差,观测误差残余量较小,完全满足三等高程控制网精度要求,同时避免量取仪器高和觇标高,操作便利。
The principle and implementation methods of Precise Triangulated Height Surveying across the river are introduced.Through actual project shows that the proposed method can eliminate atmospheric refraction error,the residual observation error is small,fully meet the surveying accuracy requirements of Third-Order height control,and avoid the measuring instrument and target height.
出处
《北京测绘》
2017年第01S期232-235,共4页
Beijing Surveying and Mapping
关键词
精密三角高程测量
高程控制网
跨河水准
precise triangulated height surveying
height control network
river crossing leveling
