The primary exploration of alarm chart visualization matching technology in low altitude airspace

By building an alarm chart platform and the visualization matching model, the design frame of warning chart visualization system in low altitude airspace was explored. Aimed at the types of low altitude flight area and mission requirements, the suitable high resolution remote sensing datum were selected as the data source to establish multi-source remote sensing data collection system. After the extraction of low altitude airspace obstacle data information by classification of geographical obstructions and artificial obstacles, the alarm data information database was established, and low altitude airspace alarm chart plotting platform was constructed. Using airborne GPS system to record aircraft attitude information in real time and to indicate information visualization and combining with special low altitude airspace and obstacle chart database, a chart visualization system and early warning of aircraft can be formed. The results show that preliminary construction of low altitude airspace chart visual matching system framework can provide reference and ideas for future low altitude visual matching system design.