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Acta Armamentarii ›› 2023, Vol. 44 ›› Issue (9): 2778-2790.doi: 10.12382/bgxb.2022.1086

Special Issue: 智能系统与装备技术

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Three-dimensional Adaptive Sliding Mode Cooperative Guidance Law with Impact Time and Angle Constraints

WANG Yuchen1,2, WANG Wei1,2, LIN Shiyao3, YANG Jing1,2, WANG Shaolong4, YIN Zhao1,*()   

  1. 1 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
    2 China-UAE Belt and Road Joint Laboratory on Intelligent Unmanned System, Beijing Institute of Technology, Beijing 100081, China
    3 China Research and Development Academy of Machinery Equipment, Beijing 100089, China
    4 Northwest Industries Group Company Ltd., Xi'an 710043, Shaanxi, China
  • Received:2022-11-22 Online:2023-02-15
  • Contact: YIN Zhao

Abstract:

Aiming at the problem of three-dimensional multiple missiles intercepting a maneuvering target simultaneously, a three-dimensional distributed cooperative guidance law considering time and space constraints. The proposed guidance law is based on fixed-time stable theory and adaptive sliding mode theory. Along the light-of-sight (LOS) direction, an improved robust adaptive cooperative guidance law is presented based on fixed-time consensus, which can drive a group of missiles to attack maneuvering target at a desired impact time without inherent chattering of sliding mode control. Along the direction vertical to the line-of-sight, a robust adaptive guidance law is proposed based on nonsingular fixed-time terminal sliding mode technique, which can drive missiles attack target with desired impact angle and avoid collision between missiles. Through the Lyapunov stability theory, the fixed-time stability of closed-loop system is demonstrated. The simulation results show that the proposed approach can be implemented to intercept maneuvering targets with desired impact time and impact angle.

Key words: distributed cooperative guidance law, fixed-time control theory, impact time and impact angle constraint, adaptive sliding mode, maneuvering target

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