支导线精度分析及优化设计

Accuracy Analysis and Optimization Design of Open Traverse

在日常测绘工作中,支导线应用比较广泛,其测量精度也是我们比较关心的问题。本文通过讨论全站仪支导线的误差来源,进行误差分析,推导出支导线上任一点在任意方向上的点位误差计算公式。最后,通过分析各个误差来源对精度的影响,并结合具体工程实例,提出在应用支导线进行测绘时的注意事项,以及如何通过合理布设导线满足工程精度要求。

As open traverse is widely used in the daily surveying and mapping work,the accuracy of its measurement has become a problem which are concerned about.In this paper,the author calculates the formula of the point precision of any point in any direction by discussing and analyzing the sources of open traverse’s measurement error.Finally,by analyzing the influence which each error source has on accuracy,and combining an engineering example,this paper puts forward some matters which should be paid attention when using the open traverse to map and come up with some ideas about how to meet the requirement of engineering accuracy through proper layout.