瞄准轴系影响到潜望式观瞄系统的测角精度。根据潜望式观瞄系统的典型光机结构，分析引起瞄准轴系误差的来源，采用矢量反射和旋转原理建立数学模型，给出方位轴、俯仰轴、瞄准轴和反射面误差对瞄准轴系的影响关系。同时，确定了与之相应的调校技术方案，明确了调校过程中的每一项控制要点，给出了联调与检测方法。通过实际产品调试验证，瞄准轴系精度可达0.1 mrad。

The aiming axis could affect the angle measurement accuracy of panoramic periscopic system. According to the typical opto-mechanical structure of the panoramic periscopic system, the error sources of aiming axis precision were analyzed. The calculation model was established by using the vector reflection theory and rotation principle, and the influence of azimuth axis，pitch axis, optical axis and reflector errors on the aiming axis was provided clearly. Meanwhile, the corresponding adjustment scheme was determined, each control point in the adjusting process was made clearly, and the debugging and testing methods were also determined. The test results show that the aiming axis accuracy is up to 0.1 mrad.