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Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (7): 1482-1495.doi: 10.3969/j.issn.1000-1093.2021.07.016

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Task Allocation and Trajectory Optimization of UAV for Multi-target Time-space Synchronization Cooperative Attack

ZHANG Yunfei, LIN Defu, ZHENG Duo, CHENG Ziheng, TANG Pan   

  1. (School of Astronautics, Beijing Institute of Technology, Beijing 100081, China)
  • Online:2021-07-30

Abstract: A task allocation and trajectory optimization algorithm for multi-target attack is proposed for the coordinated attack task of distributed UAVs attacking multiple targets in a complex battlefield environment. The typical multi-target strike mission scenarios and UAV models are established. A search map with no-fly zones as nodes is constructed based on Delaunay triangle theory. A* algorithm is used to achieve the least threatening single-aircraft path search. In terms of UAV dynamics constraints and minimum energy loss, the time adjustment factor is introduced and the distributed UAV time-space synchronization trajectory optimization method based on Bezier curve is adopted to obtain the optimized trajectory for simultaneous attack on multiple targets. A trajectory tracking controller was designed for simulation track of pre-planned trajectory. The simulated results show that the proposed multi-target attack task allocation and trajectory optimization method can achieve multi-angle, time-space synchronization, and distributed coordinated attack on multiple targets, and it has strong robustness against interference such as noise and wind gusts.

Key words: unmannedaerialvehicle, flightvehicledesign, multi-targetattack, distributedcooperation, taskallocation, trajectoryoptimization, time-spacesynchronization

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