经纬仪测量系统的铅垂基准尺综合定向方法  

Theodolite measuring system′s comprehensive orientation method based on plumb scale bar

作　　者：刘尚国[1] 赵少良 景冬[1] LIU Shangguo;ZHAO Shaoliang;JING Dong(College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, Shandong 266590, China)

机构地区：[1]山东科技大学测绘与空间信息学院,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2021年第3期1-8,共8页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家基础测绘科技与标准计划项目(2016KJ0100)。

摘　　要：针对狭长或受限空间内经纬仪测量系统的定向测量难题,提出一种基于铅垂基准尺的综合定向方法。首先分析铅垂基准尺综合定向的理想模型与计算原理,获取定向参数的初始值。然后建立观测方程与基准尺条件方程,依附有限制条件的间接平差模型,实现综合定向参数的精确求解。经实验测试,所提出的铅垂基准尺综合定向方法简便易行,仅需观测3个位置的铅垂基准尺,10 m范围内的定向参数求解偏差优于0.05 mm,三维坐标解算偏差优于0.03 mm,准确度与Leica Axyz的光束法平差算法水平相当。In order to solve the orientation measurement problem of double theodolite measuring system in long and narrow or confined space,a comprehensive orientation method based on plumb scale was proposed.Firstly,the ideal model and calculation principle of comprehensive orientation based on plumb scale were analyzed,and the initial value of orientation parameters was obtained.Then,according to the indirect adjustment model with conditions,the observation equation and scale bar condition equation were established to realize the accurate solution of comprehensive orientation parameters.The experimental results show that the proposed method is simple and easy to use,requiring observations of only three positions of plumb scale.The deviation of the orientation parameters within 10 metersis better than 0.05 mm,and the deviation of the three-dimensional coordinate is better than 0.03 mm.The accuracy of the proposed method is equivalent to that of Leica Axyz bundle adjustment algorithm.

关 键 词：经纬仪测量系统 铅垂基准尺 综合定向 垂直角视距法 间接平差 

分 类 号：P258[天文地球—测绘科学与技术]