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Decentralized overlapping feedback laws are designed for a formation of unmanned aerial vehicles. The dynamic model of the formation with an overlapping information structure constraint is treated as an interconnected system with overlapping subsystems. Using the mathematical framework of the inclusion principle, the interconnected system is expanded into a(More)
The use of a differential game and an optimal control theoretic approach for computing danger zones for this particular problem is new. The space outside the danger zone is deemed provably safe, implying that during blunder situations, emergency evasive maneuvers starting from outside the zone are guaranteed to be safe within limits on the maneuver severity(More)
— The Stanford DragonFly Program (http://airtraffic1.stanford.edu/∼uav/) consists of two fixed wing (10-foot wingspan) autonomous aircraft, whose onboard architecture, avionics, control, and integration with wireless communications have been developed entirely at Stanford. The DragonFly platform is used as a technology testbed for research in the design of(More)
— Aircraft formation flying and highway vehicle platooning are examples of spacing control of multiple vehicles. To achieve string stability with a linear static controller, state information of a reference vehicle in addition to the immediately preceding vehicle must be available to all vehicles. Possibly, the most efficient way to achieve this is by using(More)
In poor visibility, paired approaches to airports with closely spaced parallel runways are not permitted, thus halving the arrival rate. With Global Positioning System technology, datalinks and cockpit displays, this could be averted. One important problem is ensuring safety during a blundered approach by one aircraft. This is ongoing research. A danger(More)
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