Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (4): 1318-1328.doi: 10.12305/j.issn.1001-506X.2022.04.30

• Guidance, Navigation and Control • Previous Articles     Next Articles

Integrated guidance and control design method with multiple constraints and backlash

Shang JIANG1, Bo WEI1, Weige LIANG2,*, Dongyan SUN1, Jinjun LI1, Ye MA1   

  1. 1. Department of Missile and Naval Gun, Dalian Naval Academy, Dalian 116018, China
    2. Institute of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
  • Received:2021-04-19 Online:2022-04-01 Published:2022-04-01
  • Contact: Weige LIANG

Abstract:

At the end of long-range shore fire support by naval gun guided projectile, an integrated guidance and control design method with multiple constraints based on dynamic surface sliding mode and extended states observer is proposed, considering the canard backlash, impact angle constraint and limitation of measurement line of sight (LOS) angle rate. The strict feedback cascade model of integrated guidance and control for guided projectile is constructed, and the canard is regarded as more practical dual inertial quantum system with backlash. For unknown disturbances such as LOS angle rate and wind, an extended state observer is designed to estimate them quickly and accurately. A nonsingular terminal sliding mode with adaptive exponential reaching law is designed to make the LOS angle rate and LOS angle tracking error zero in finite time. In order to improve the differential expansion problem effectively, dynamic surface sliding mode is used in high-order cascade system. The system uniform and ultimate bounded and finite time convergence of important states are proved through Lyapunov theory. Through comparative simulation experiments, under control of the proposed method, the guided projectile with actuator backlash possess good guidance performance when attacking fixed and snake maneuvering targets.

Key words: guided projectile, integrated guidance and control, multiple constraints, backlash, dynamic surface sliding mode

CLC Number: 

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