Multi-source information fusion for sense and avoidance of UAV

Sharing safety airspace is a key issue for UAV and manned aircraft as the development of UAV. In this paper, UAV airspace obstacles sense was thoroughly studied based on multi-source information fusion. Through multi-sensors information fusion technologies, positions and runtime space state of UAV were computed and shared with manned aircraft. Taking advantage of alternative ascendancy of multi-image was to realize all-time, all-weather, remote and high-resolution of target detecting, identifying and tracking. So the run-time and reliabilities of airspace obstacles sense for UAV was improved greatly. Referring the basically working principle of the manned aircraft air traffic alert and collision avoidance system, we determine the aircraft whether fly into a threat to the safety of their own and provide early warning analysis and decision-making by calculating the relevant parameters. Finally, avoid strategies are given according to the actual situation, including avoidance methods and make way mutually.