一种多站扫描中标靶定位精度的整体评估方法

针对目前标靶定位精度的估计大多是基于单个位标靶进行的,没有顾及各站标靶之间的关系,该文提出基于激光束法区域网中的同名距离,对标靶定位坐标进行检核和验算。整体思想是通过查找扫描站间标靶有两个或两个以上为同名标靶时,以相邻站同名距离相等为条件列立同名距离方程式,平差计算标靶定位精度,验算标靶定位精度是否满足某种工程测量的要求。通过实际工程案例,说明了激光束法区域网平差前的概算对标靶定位坐标检核和精度估计的必要性。

A overall assessment method for the target positioning accuracy of multi-station scanning

The evaluation of the target location accuracy is mostly based on a single target currently without considering the correlation between the targets of different stations.In this paper,the target location coordinates were calculated and checked based on the corresponding distance of laser beam bundle block.When the corresponding targets between the scanning stations were two or more,corresponding distance equation according to the same distances between adjacent stations were established,and then target positioning accuracy was calculated through adjustment to check whether the target positioning accuracy meet the requirements of some engineering measurement.Practical project case confirmed that the estimation before laser beam bundle block adjustment was necessary for the check and accuracy estimate of the target positioning accuracy.