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本文开头指出了跟踪性能是光电经纬仪第一重要技术指标，接着叙述了跟踪原理和跟踪误差的检测方法，并对跟踪误差进行了较深入的分析讨论．文章最后，将跟踪误差分门别类，介绍了降低跟踪误差、提高跟踪性能的途径．
At the beginning of this paper, it is pointed out that tracking performance is the first important technical index of photoelectric theodolite. Then the detection principle of tracking principle and tracking error are described, and the tracking error is analyzed and discussed in depth. At the end of the article, the tracking error is divided into different categories, introduced ways to reduce tracking error and improve tracking performance.