车载光电经纬仪基准平面测角误差修正

为了提高车载光电经纬仪的测角精度，提出了由基准平面误差导致测角误差的修正方法。根据车载光电经纬仪基准平面的结构，分析了基准平面的误差组成。基于光电经纬仪的基座上安装相互垂直的两个水平传感器，推导了根据水平传感器测得的倾角计算出整个基准平面的倾角和最大倾斜方向的计算公式。使用球面坐标系分析了由基准平面误差而产生的测角误差并给出了修正公式。实际跟踪测量表明，采用此方法进行测角误差修正效果较好，最大方位角修正角度误差在5’左右，最大俯仰角的修正误差为2′左右。

Corrected Error of Base-plane for Vehicle-borne Photoelectric Theodolite

In order to improve the measure precision of the vehicle-borne photoelectric theodolite,the corrected method for measure error come from baseplane's error was proposed.The error of base-plane based on base-plane's structure of the theodolite was analyzed.The calculating formula of the baseplane's obliguity and the biggest incline vector calculated by the measured obliquity come from horizontal sensors was deduced based on two vertical each other horizontal sensors fixed on the theodolite base.The measure er...