下滑光波束指示精度是菲涅尔光学助降系统的一项重要指标。针对菲涅尔透镜光学助降系统动态飞行检验的需求, 首先,从标校系统的作用距离、测角精度以及光电平台成像性能的角度, 分析了无人机标校平台的总体需求; 然后, 介绍了无人机标校系统的基本组成、标校流程、标校数据处理及误差分析; 最后, 分析标校关键技术及其解决方案。研究表明: 基于无人机差分GNSS技术的标校方法满足菲涅尔透镜光学助降系统定期标校需求, 具有灵活性高、组织实施效率高等优点。

The accuracy of sliding beam indication is an important indicator of the Fresnel Lens Optical Landing System (FLOLS).In response to the requirements of dynamic flight inspection of FLOLS, the overall requirements to the UAV calibration platform are analyzed from the perspectives of the influence distance and angle measurement accuracy of the calibration system and the imaging performance of the photoelectric platform.The basic composition, calibration process, calibration data processing and error analysis of the UAV calibration system are introduced.Finally, the key technologies and solutions of calibration are analyzed.The study shows that the calibration method based on the UAV differential GNSS technology meets the requirements of regular calibration of FLOLS, and has the advantages of high flexibility and high organizational implementation efficiency.