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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (4): 777-787.doi: 10.3969/j.issn.1000-1093.2019.04.013

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A Sliding Mode Guidance Law for Impact Time Control with Field of View Constraint

CHEN Shengfu, CHANG Sijiang, WU Fang   

  1. (School of Energy and Power Egineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)
  • Received:2018-07-03 Revised:2018-07-03 Online:2019-06-10

Abstract: To improve the robustness and engineering adaptability of the impact time control guidance law, a nonsingular impact time control guidance law with seeker's field of view constraint is designed using sliding mode technique based on the geometrical relation of projectile interception. The stability and convergence of the proposed guidance law are proved by Lyapunov theory. The theoretically analyzed and simulated results show that, when the impact time error is zero, the proposed guidance law can evolve into a pure proportional navigation guidance law, and the required terminal acceleration of the proposed guidance law is fairly smooth, converging to zero during interception. The proposed guidance law can be used to effectively control the impact time for stationary target interception and multi-missile cooperative attack. Key

Key words: missile, impacttimecontrol, field-of-viewangleconstraint, slidingmodecontrol, proportionalnavigationlaw

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