关键词: 低空空域, 无人机(UVA), 空域冲突, 机器视觉, 感知与规避
Abstract: Unmanned Aerial Vehicles (UAV) aerospace conflict sensing is the most challenging key technology in national aerospace integration. Considering the broad application of small sized UAVs in low altitude aerospace, this paper makes a research survey of vision based aerospace conflict sensing technologies. Firstly, the application status of small sized UAVs in low altitude aerospace is briefly introduced, and the typical features of this kind of UAVs is summarized. Secondly, based on the categories of sensing objects, existing aerospace conflict sensing technologies are classified into cooperative sensing method and non-cooperative sensing method. The sensing technology most appropriate for small sized UAVs in low altitude aerospace is concluded. Then, the research progress of three key technologies of vision based aerospace conflict sensing, including visual information pre-processing, vision based intruder detection, vision based collision avoidance trajectory planning, are introduced. Finally, the challenges to be solved in this area are concluded, and several future research trends are introduced.
Key words: low altitude aerospace, Unmanned Aerial Vehicle (UAV), aerospace conflict, machine vision, sensing and avoidance