经纬仪导线简易平差方法研究

Study on the Theodolite Traverse Simple Adjustment Method

本课题结合导线测量常用的布设形式,以及外业测量和内业计算知识。针对经纬仪导线坐标增量闭(附)合差调整常用的两种简易平差方法。论述了其原理过程,给出了坐标增量闭(附)合差的一般公式,在此基础上进行了两种方法的实例计算。结果表明:相同导线当导线方位角不同时,增量法与边长法分别计算所得的导线精度结果并不一致,两种方法的适用情况是不完全相同的。

Under normal circumstances, the traverse should be carried out with rigorous adjustment, but the root tra-verse of the secondary level and below allows simple adjustment methods on a single traverse line and single node tra-verse network for calculation.This project is based on the layout commonly used for traverse measurement, and theknowledge of field measurement and indoor calculation. In view of the two simple adjustment methods commonlyused for theodolite traverse close coordinate increment(attached) difference, this paper discussed their principle andprocess, and gave the general formula for close coordinate increment(attached) difference, and conducted the practi-cal calculation based on the two methods. The results showed that for the same traverse with different azimuth angles,the accuracy results of the traverse calculated by the incremental method and the length method respectively were dif-ferent. The application of the two methods were totally different.