摘要
本文对大射电望远镜5米模型定标中存在的误差进行分析,提出一种新定标方案。该方案在计算测站点高差时避免了测量棱镜高和仪器高,通过测站点作水准网的平差并评定其精度,选出测站点中误差最小的点作为定向点定出X轴并建立坐标系,解算出各个测站点的精确的坐标。精度分析和多次的实验验证了该方案的有效性。
Analyzing the errors of LT5m, a new demarcation method is presented. This method avoids measuring the height of Total station and lens when it calculates station height.Leveling-net condition adjustment is used for the height of each station.Then the point with least error is chosen as direction point to establish coordinate system. Precise coordinate of each station is calculated. The method is verified validly through theory analysis and experiment of LT5m.
出处
《测绘科学》
CSCD
北大核心
2007年第4期47-48,40,共3页
Science of Surveying and Mapping
基金
巨型射电天文望远镜(FAST)总体设计与关键技术研究(10433020)
关键词
大射电望远镜
水准网平差
定标
large radio telescope
leveling-net adjustment
demarcation
