无定向导线测量的实践试验及其精度分析

本文阐述了无定向导线测量的基本方法和计算原理，并以桐乡县控制测量的实践试验为例，对这种方法进行论证.采用两种不同的计算方法对成果t}精度进行比校分析.本文还讨论了无定向导线测量用于城市建筑区及隐蔽地区控制测量的特点，指出这种方法的实用价值和应注意的问题.

The Practice and Experiment on Non directional Traverse and Its Precision

This paper has expounded the basic method and computational principle of non-directional traverse, which is supported by the control survey in Tongxiang county. It has adopted two different computational methods to compare and analyse the precision of the measurement.It has also discussed the characteristic of control survey of non-directional traverse in urban buildings and concealing terrains and pointed out the practical value and problems of this method.