改进的导线网结点平差法

由于种种原因，导线网观测过程中在某些已知点上没有观测定向方向，本文针对这种情况对导线网结点平差进行改进，即把导线网分成ｎ个无定向方向的导线节和ｍ个定向方向共ｎ＋ｍ区，发区平差，这样无论在已知点上是否观测定向方向，改进后的方法均适用，通过实例计算，验了该方法的正确性。

Improved Node Adjustment of Traverses Network

For many reasons,there isn't a special direction on some known points during the traverses survey.This article improved the node adjustment of traverses network: Dividing traverses network to n no orient-traverses node and m definite Oriented direction-which means n m area,then adjust by area. So no matter whether we observe the definite direction or not,the improved method will do. We applied it in practical work,and proved its correctness.