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Circular Formation Control of Multiple Unicycle-Type Agents With Nonidentical Constant Speeds

Abstract : This paper discusses the problem of controlling formation shapes for a group of nonholonomic unicycle-type agents with constant speeds. The control input is designed to steer their orientations and the aim is to achieve a desired formation configuration for all the agents subject to constant-speed constraints. The circular motion center is adopted as a virtual position for each agent to define the desired formation shape. We consider several different formation design approaches based on different formation specifications under different interaction graphs. In particular, two different formation design approaches, namely, a displacement-based approach and a distance-based approach, are discussed in detail to coordinate constant-speed agents in achieving a desired formation shape with stable circular motions via limited interactions. The communication and measurement requirements for each approach are also discussed. Furthermore, we propose a combined controller to stabilize a formation shape and synchronize the heading of each agent simultaneously. The effectiveness of the proposed formation control schemes is validated by both numerical simulations and real experiments with actual unmanned fixed-wing aircraft.
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Submitted on : Monday, February 5, 2018 - 10:43:28 AM
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Zhiyong Sun, Hector Garcia de Marina, Seyboth, G, Brian D.O. Anderson, Changbin Yu. Circular Formation Control of Multiple Unicycle-Type Agents With Nonidentical Constant Speeds. IEEE Transactions on Control Systems Technology, Institute of Electrical and Electronics Engineers, 2019, 27 (1), pp 192 - 205. ⟨10.1109/TCST.2017.2763938⟩. ⟨hal-01700713⟩



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