导线网观测值的精度匹配

Accuracy Matching of Traverse Network Observation

本文结合实例,重点讨论了观测值的先验权与平差后单位权中误差及点位中误差的关系以及边角权的匹配问题,并得出了初步结论,为使导线测量观侧值精度能较好地匹配,在保证规范规定的测角中误差前提下,测距精度可适当降低。

The relationship among the prior weighte of observation, the mean errors of unit weight and point position after adjustment, as well as the matching of angle and distance measuring weight for traverse are discussed in this paper. It found that the accuracy of measuring distance cnuld be a little lower than that tabled in the specfication in the condition of ensuring the allowable mean error in order to well matching observation accuracy.