光电经纬仪测量飞行器三维坐标方法及误差分析

Measurement of Vehicle Three Dimension Coordinate with Photoelectrical Theodolite and Error Analysis

介绍一种用于光电经纬仪精确测量飞行器三维坐标的计算方法。该方法利用空间两异面光 轴公垂线估计交会点位置,克服了常规算法中的模型误差。分析了观测量误差产生的原因并提出了改正方法。对定位测量误差进行了仿真, 结果表明,利用该方法并合理布站可显著提高坐标测量精度,对于机动大目标的坐标测量误差小于0.20m。

A method used for calculating the precision measurement results of vehicle 3-D coordinate with photoelectrical theodolite is presented. The method estimates intersecting point by means of optical axis public vertical line of two different planes in space. In this way it overcomes the model error in the common algorithms. The reasons for generating observation parameter errors are analyzed and the improvement method is proposed. The simulation of positioning and measurement errors is carried out. The results show that with this method and reasonably arrangement of measuring stations, then the coordinate measurement accuracy can be obviously improved. For the mobile large target, its coordinate measurement error is less than 0.20m.