摘要
射向标定测量只需要提供方位角成果,为了消除测距误差对方位角的影响,在数据处理时只对观测水平角进行平差。比较各种平差方法,并通过实例分析得出,对观测水平角进行间接平差最为方便实用。对多次实测数据进行统计,通过闭合差估计出:射向标定测量中测角中误差为1″左右,基准方位角的精度水平在1.2″左右。
The azimuths are the only production in the orientating launch survey.In order to eliminate the influence of the ranging error,only the horizontal angles should be adjusted.After comparing the adjustment methods and analyzing the real data,the indirect adjustment only to the horizontal angles is the most convenient and practical one.From the statistic analysis of a lot of surveying data,the mean square error of 1＂ in angle observations and the accurate of 1.2＂ of fiducial azimuth have been estimated by the closing error.
出处
《海洋测绘》
2014年第5期24-26,30,共4页
Hydrographic Surveying and Charting
关键词
精密工程测量
射向标定测量
天文方位角归算
角度平差
precise engineering survey
orientating launch survey
reduction of astronomical azimuth
angle adjustment
