射向标定测量中角度平差方法探讨  

M ethods of Angle Adjustment in Orientating Launch Surveys

作　　者：刘新江 陈勤勤 

机构地区：[1]61365部队

出　　处：《海洋测绘》2014年第5期24-26,30,共4页Hydrographic Surveying and Charting

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.

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 

分 类 号：P258[天文地球—测绘科学与技术]