期刊
APPLIED SCIENCES-BASEL
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/app11020792
关键词
quadrotors; aggressive formation tracking control; extended finite-time observer; flatness
类别
资金
- Natural Science Foundation of Guangdong Province [2018A030310046]
- China Postdoctoral Science Foundation [2019M662848]
"This paper introduces a decentralized neighbor-based formation tracking control strategy for multiple quadrotors with a leader-follower structure. By estimating high-order motion states of neighbors using an extended finite-time observer, the proposed control method improves formation performance, maintaining the formation pattern of quadrotors better when tracking an aggressive reference trajectory."
In this paper we address a decentralized neighbor-based formation tracking control of multiple quadrotors with leader-follower structure. Different from most of the existing work, the formation tracking controller is given in one loop without distinguishing the motion control and attitude control by means of the theory of flatness. In order to achieve an aggressive formation tracking, the high-order states of the neighbors motion are estimated by using a proposed extended finite-time observer for each quadrotor. Then the estimated motion states are used as feedforwards in the formation controller design. Simulation and experimental results show that the proposed formation controller improves the formation performance, i.e., the formation pattern of the quadrotors is better maintained than that using the formation controller without high-order feedforwards, when tracking an aggressive reference formation trajectory.
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