摘要
对边测量是全站仪的一种常用内置功能,用于间接测量两个彼此不通视的点之间的水平距离,该方法设站灵活,操作简单,但其测量精度没有标注,需要通过计算求得。本文研究全站仪对边测量的基本原理,利用误差传播原理,推导出对边测量的精度计算公式。最终通过实例计算,对其精度进行了分析,并讨论了对边测量在测站改变时其精度变化的规律,提出了提高对边测量精度的方法。
The RDM is a kind of expert measure function of Electronic total station, it can indirectly measure level dis-tance that two point cannot be seen directly. The method is flexible for setting up station and simple for operating. Be-cause it？s accuracy is not marked, it need to be calculated. This thesis focuses on sElectronic total station, and inferring the formula of accuracy for EDM according to the law of error propagation. F-- nally, calculating and analyzing the accuracy according to the examples, and making discusses about the mutative regu-lation of the accuracy of EDM when the measuring stations are changed. Therefore, we put forward the methods for raising the accuracy of EDM.
出处
《北京测绘》
2018年第1期114-118,共5页
Beijing Surveying and Mapping
关键词
全站仪
对边测量
精度分析
electronic total station
Remote Distance Measurment （RDM）
accuracy analysis
