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Collaborating unmanned aerial vehicles can efficiently perform surveillance, mapping, and other tasks without human risk. Currently deployed unmanned aerial vehicles demonstrate a need for increased autonomy and cooperation. We present a software architecture and UAV hardware platform that have demonstrated single-user control of a fleet of aircraft, distributed task assignment, and vision-based navigation. This is the only such system known to the authors to have demonstrated in-the-air task allocation and collaboration. A modular software infrastructure has been developed to coordinate distributed control, communications, and vision-based control. Along with the onboard control architecture, a set of user interfaces has been developed to allow a single user to efficiently control the fleet of aircraft. Distributed and vision-based control are enabled by powerful onboard computing capability and an aircraft-to-aircraft ad-hoc wireless network. Custom modifications to the Sig Rascal airframe were required to support this capability. We describe original elements of the system that provide unique capabilities for collaboration, followed by results of a milestone flight demonstration of three collaborating UAVs. V Airspeed ψ Heading angle
Ryan et al. (Thu,) studied this question.