摘要
提出以场地条件类似的比长基线场代替天文大地点进行陀螺经纬仪的校准。从观测原理的误差分析入手,分析对测量精度的要求和仪器选取;将GPS和工业电子经纬仪用于天文大地测量,并对观测方法加以改进,建立一套基于比长基线场的陀螺经纬仪方位角校准装置;最后,给出校准装置的不确定度分析。实验证明,其精度能达到规程的要求。
Instead of astronomical geodetic points,we proposed to put the baseline field,which has similar site conditions,forward.This paper analyzes the principle of starting from the observed error,then examines the measurement accuracy requirements and equipment selection.We use the GPS and industrial electronic theodolite in astronomical geodetic surveying and improve the methods of observation.After establishing the gyrotheodolite azimuth calibration device based on the baseline field,we do an experiment that shows that the accuracy can satisfy the specification requirements.Furthermore,the uncertainty analysis of the calibration device is given.
出处
《大地测量与地球动力学》
CSCD
北大核心
2016年第4期327-330,共4页
Journal of Geodesy and Geodynamics
基金
中国地震局地震研究所所长基金(IS201306103)~~
关键词
陀螺经纬仪
校准
天文方位角
北极星观测
不确定度
gyrotheodolite
calibration
astronomical azimuth
polaris observation
uncertainty
