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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (6): 1179-1189.doi: 10.3969/j.issn.1000-1093.2019.06.008

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Flight Control Strategy for Distributed UAV Formation under the Conditions of Bounded Time-varying Delay andJointly-connected Topology

LI Xiaomin1, MAO Qiong2, GAN Qintao2, DU Zhanlong3   

  1. (1.School of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China;2.Department of UAV Engineering, Shijiazhuang Campus, Army Engineering University, Shijiazhuang 050003, Hebei, China;3.Overall Institute, Unit 63850 of PLA, Baicheng 137001, Jilin China)
  • Received:2018-06-29 Revised:2018-06-29 Online:2019-08-14

Abstract: A consistency theory-based distributed formation control strategy is proposed for the multi-UAVs with nonlinear dynamic characteristics, in which the communication delay is changed in bounded interval and the network topology is jointly-connected. The Lyapunov-Krasovskii function is used to analyze the formation stability and deduce its sufficient conditions. The derivative characteristic of time-delay is not considered, and the high dimensional matrix solution of communication topology is transformed into low dimensional matrix solution with several connected parts. The proposed strategy has the advantages of wide applicability, low computational cost and excellent real-time performance. The effectivity of the proposed method in the cases of nonlinear fast-varying and random hopping delays was verified through simulation experiment. Experimental results show that the proposed strategy can be used to direct the multi-UAVs to assemble and converge to any symmetric or asymmetric target formation with scheduled speed. Key

Key words: UAVformation, time-varyingdelay, switchingtopology, formationcontrol

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