全站仪中间法与对向观测法精度分析

Analysis on Accuracy of the Midway Method and Object Observation Method with Total Station

介绍了全站仪对向观测与中间观测基本原理,并基于其原理推导出两种观测方法的高程测量公式.经误差传播定律推出中误差公式,通过误差数据定量分析比较两种方法的精度,得出在测距、竖直角变化时对向观测与中间观测的精度是不相同的,并用实例进行了对比验证,在实际应用中,应结合精度分析结果选择合理的测量方法以提高精度.

This paper introduces the basic principles of object observation and midway method with total station , and deduces the height measurement formula .Through quantitative analysis of the error data and comparing the accuracy of two methods , we can get the result that the accuracy of midway method and object observation is different when the distance and the vertical angle change , which is testified with examples .So in practice , in order to improve the precision , we should use results of accuracy analysis to choose reasonable measurement methods .