Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (5): 1152-1157.

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Formation method of obstacle avoidance for UAVs based on control architecture and decomposition strategy

ZHOU Wei, WEI Rui-xuan, DONG Zhi-xing   

  1. Engineering Inst., Air force Engineering Univ., Xi'an 710038, China
  • Received:2008-02-20 Revised:2008-09-17 Online:2009-05-20 Published:2010-01-03

Abstract: For the flight formation problem under the danger mode,an method based on the control architecture and decomposition strategy for the formation of obstacle avoidance is proposed.By means of constructing and searching a Voronoi diagram,the reference flight paths for choice are generated based on the K shortest path algorithm.Then the cooperative function is established,and the collision avoidance path is designed for each UAV,which can meet both the request of cooperative time and the optimal(or second optimal) cost of the whole formation.Finally the traffic rule of formation flight is designed to tackle with the emergencies.Simulations verify the effectiveness of the proposed method.

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