摘要
以虚拟误差方程，经严密推证，给出了以方向作为独立观测值的后方交会点位精度估算公式。以大桥施工控制网为例，介绍了3个方向与4个方向后方交会的精度状况及其应用。
This paper, through a strict derivation based on the establishment of virtual observation equations, introduces the estimation formula of the resection using directions as the independent observations. Taking the bridge construction network as an example, the accuracy situation of 3-direction and 4-direction resections is given.
出处
《测绘工程》
CSCD
1998年第4期32-37,共6页
Engineering of Surveying and Mapping
