经纬仪多基准尺联合标定技术研究  

Research of theodolite scale joint calibration technology

作　　者：潘廷耀 范百兴[1] 西勤[1] 易旺民[2] 杨再华[2] 肖华杰[1] 

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450001 [2]北京卫星环境工程研究所,北京100094

出　　处：《测绘工程》2016年第5期56-58,63,共4页Engineering of Surveying and Mapping

基　　金：航天器高精度测量联合实验室基金资助项目(2014-2015)

摘　　要：建立经纬仪测量系统的首要问题是进行经纬仪系统定向,经纬仪系统定向主要包括相对定向和绝对定向,其中绝对定向是确定经纬仪测量系统的尺度因子。在实际测量中,针对不同位置和姿态的基准尺对系统整体定向的精度影响较大以及多余观测少等问题,通过对多个位置和姿态的基准尺进行测量,增加约束条件,提高点位测量的精度,改善点位误差的空间分布特性。实验结果表明,文中方法能较好地提高系统的测量精度。The establishment of theodolite measuring system is the precondition of theodolite system orientation, which mainly includes relative orientation and absolute orientation. The absolute orientation is to determine the scale factor of the theodolite measuring system. In actual measurement, the different position and posture of the scale will influence the precision of the system. Based on different position and posture of the benchmark ruler to measure, this paper increases the constraint conditions, and improves the accuracy of point measurement and the spatial distribution characteristics of point error. The experimental results show that this method is better to improve the measurement precision of the whole network.

关 键 词：经纬仪测量系统 绝对定向 基准尺 点位精度 

分 类 号：TH761.1[机械工程—仪器科学与技术]