基于无人机平台的陆基光学助降装置动态标校系统

Dynamic Calibration System for Ground Base Optical Landing Device Based on UAV Platform

为满足舰载机陆基着舰光学助降装置动态飞行校验的需求,采用载波相位差分GNSS测量技术,构建基于无人机平台的动态校飞测试平台。首先分析菲涅尔透镜光学助降装置的标校需求,明确动态校飞系统技术指标要求。在此基础上构建包括无人机平台、高清摄像与记录模块、机载差分GNSS模块、姿态测量模块和地面显控终端的动态标校系统。最后介绍无人机动态标校流程,采用偏心观测法得到菲涅尔灯几何中心的坐标,结合IMU模块输出的姿态信息,得到航测相机成像几何中心的位置信息。应用结果表明,该系统可为菲涅尔透镜光学助降系统的动态校飞提供参考。

Aiming at the dynamic calibration requirements of carrier-based aircraft ground base optical landing system, the dynamic flight test system based on unmanned aerial vehicle(UAV) platform has been built, which is using the carrier phase difference of global navigation satellite system(GNSS). Firstly, calibration requirement of the Fresnel lens optical landing system(FLOLS) has been analyzed, and the technical specifications requirement of the dynamic fly-checking system has also been confirmed. Then, the dynamic calibration flight test system has been constructed, which is consist of UAV platform, high-definition camera and recording module, airborne differential GNSS module, attitude measurement module and ground display and control terminal. Finally, the dynamic calibration process has been introduced. The coordinate of geometric center of the Fresnel lamp are obtained by eccentric observation metho d, and the position information of imaging geometric center of aerial camera is obtained by combining the attitude information of IMU module. The application results show that the system can provide reference for dynamic calibration of FLOLS.