双视场无损切换成像系统设计

Design of Imaging System on Double View Field Lossless Switching

中文关键词:  无人机  自主空中加油  成像系统  无损切换  光轴平行性校正

英文关键词:UAV  autonomous aerial refueling  imaging system  lossless switching  optic-axes parallelism correction

中文摘要:

      为实现无人机自主空中加油在近距离逼近阶段的快速跟踪引导及自动对接阶段的高精密测量，针对12∶1缩比的无人机自主空中加油的仿真系统，设计了一套双视场无损切换的立体视觉成像系统。该成像系统采用独立光学系统结合光电信号切换的模式，组成两组双目立体视觉,采用平行光管法对光轴平行性校准，完成装调，使两组双目立体视觉光轴的平行性误差不大于005 mrad。设计了快速无损切换算法，测试表明，双视场无损切换成像系统的视场切换时间只有几个毫秒，是机械式切换的1%左右。试验验证双视场无损切换成像系统技术方案可行，能满足无人机自主空中加油12∶1缩比的仿真系统的要求。

英文摘要:

      In order to realize tracking and leading for close approximation and precision measuring for automatic docking of autonomous aerial refueling of UAV,a set of double view field lossless switching imaging system is designed based on 12∶1 scales simulation system of UAV autonomous aerial refueling.A composite mode is adopted by the imaging system for independet optical system and photoelectric signal switching to produce two binocular stereo visions.Its alignment is completed after correcting the optical-axis parallelism.Result shows the error is less than 0.05 mrad.A high-speed lossless switching method is designed,the test result shows that the change-over time of double view field is milliseconds only,which is 1% of the mechanical change-over.The technical solution of the double view field lossless switching imaging system is feasible,and can meet the requirement of 12∶1 scales simulation system of UAV aerial refueling.