平面方向交会法计算方位角精度分析  

Accuracy Analysis on Calculating Azimuth with Plane Direction Intersection Method

作　　者：刘新江 

机构地区：[1]61365部队

出　　处：《北京测绘》2012年第3期8-9,18,共3页Beijing Surveying and Mapping

摘　　要：采用方向交会法可以确定出点位的平面坐标。由于观测方向值、大地方位角、高斯平面坐标方位角所参考的基准面不同,在计算方位角时应考虑标高差改正、曲率改正等因素。通过试验数据,将采用方向交会法计算得出方位角与严密导线平差后的计算结果相比较,分析了一定条件下方向交会法计算方位角所能达到的实际精度水平。Plane coordinates can be obtained with the direction intersection method. The correction for the skew normals and the curvature correction should be considered in calculating azimuths because the datum planes referred by the observed directions, geodetic azimuths and the Gauss plane coordinate azimuths are different. Some experimental data are processed with the plane direction intersection method and the rigorous traverse adjustment respectively. Comparing results show the calculating precision of the plane direction intersection method can be used in a certain condition.

关 键 词：工程测量 交会法 大地方位角 高斯平面坐标方位角 

分 类 号：P258[天文地球—测绘科学与技术]