摘要
通常我们认为施工现场所采用的后方交会的误差大于直接转点,这种观点是比较片面的。本文基于多余观测,研究了后方交会定位精度分析方法,该方法适用于关键数据点测量,如联系测量、单独控制点加密等,优点是数据可信度高,缺点是不适用大范围测量,目的旨在提高单点精度,可为测量工作提供借鉴参考。
We usually believe that the error of the rear intersection used on the construction site is greater than that of the direct turning point,which is a relatively one-sided view.This article studies a method for analyzing the accuracy of rear intersection positioning based on redundant observations.This method is suitable for measuring key data points,such as contact measurement and encryption of individual control points.The advantage is high data credibility,but the disadvantage is that it is not suitable for large-scale measurement.The purpose is to improve the accuracy of single points,which can provide reference for measurement work.
作者
徐佳
XU Jia(The 3rd Engineering Co.,Ltd.of China Railway 12th Bureau Group,Taiyuan 030024,China)
出处
《价值工程》
2025年第4期166-168,共3页
Value Engineering
基金
中铁十二局集团有限公司科技研究开发计划项目(集团2023研-28号)。
关键词
多余观测
后交定位
精度
分析方法
excess observations
rear intersection positioning
accuracy
analysis methods
