以2台光电经纬仪间的方向余弦交会方法为基础,结合误差传递规律,推导出目标空间位置的测量误差公式,分析包括交会角等因素对交会测量精度的影响。试验结果表明,当交会角在[30°,150°]时,坐标测量精度可显著提高,因而对实际工程应用中的光电经纬仪的布站有重要参考价值。 Based on the method of cosine cross between two photoelectric theodolites, the measurement error formula of the target spatial position is deduced based on the law of error transfer. The influence of the intersection angle and other factors on the measurement accuracy of the intersection is analyzed. The experimental results show that when the intersection angle is at [30 °, 150 °], the coordinate measurement accuracy can be significantly improved, which is of great reference value to the optoelectronic theodolite station in practical engineering.