为实现光电经纬仪等靶场光测姿态测量设备测量精度的室内测试和评价，介绍了光电经纬仪对空间轴对称目标的姿态交会测量的原理。利用检测架、平行光管、目标轮廓靶及光源室内模拟不同姿态角的无穷远目标。建立了利用目标特征点的方位角、俯仰角计算目标姿态角的精确数学模型。用高精度经纬仪对目标上的多个特征点进行测量，用最小二乘法按该数学模型对目标姿态进行拟合，得到模拟目标的姿态，经验证该方法的标定精度可达0.05 °。以该标定结果为模拟目标姿态的真值，光电经纬仪对同一模拟目标姿态进行动态测量，将测量结果与真值进行比较，可确定光电经纬仪的姿态测量精度。

In order to realize indoor test and evaluation of attitude measurement accuracy of range optical attitude measurement equipment, some research work has been done. The principle of intersection surveying the attitude of spatial axisymmetric target with photoelectric theodolites is introduced. The device is introduced to simulate the attitude of infinite object indoor, which is composed of measurement rack, collimator, light source, and targets with different angles. Precise mathematical model is established, which is relation with target attitude angle and azimuth and elevation of target feature points. Firstly, several feature points on the target are measured with high precision theodolite. Secondly, according to the above mathematical model, the target attitude is fitted by using the least square method, then, the target attitude angle is got. It has been proved that the calibration precision can reach 0.05°. Consider the calibration results as true value of the target attitude angle, dynamic measurements are performed on the same target by using photoelectric theodolite and attitude measurement error of the theodolite can be obtained in comparsion with two measurement results.