Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (3): 806-813.doi: 10.12305/j.issn.1001-506X.2023.03.22

• Guidance, Navigation and Control • Previous Articles     Next Articles

Multi-constraint multi-input interceptor integrated attitude and trajectory compound control

Qian PENG1, Jianguo GUO1,*, Zongyi GUO1, Guoqing WANG2   

  1. 1. Institute of Precision Guidance and Control, School of Aerospace, Northwestern Polytechnical University, Xi'an 710072, China
    2. Research and Development Department, China Academy of Launch Vehicle Technology, Beijing 100076, China
  • Received:2021-11-22 Online:2023-02-25 Published:2023-03-09
  • Contact: Jianguo GUO

Abstract:

An attitude and trajectory integrated compound control method with high precision and low energy consumption is proposed for the near space kinetic interceptor. Firstly, based on the kinematics and dynamics of interceptor, characteristics of actuators and the structure of full strapdown seeker, the guidance and control system model of the full strapdown attitude and trajectory compound control interceptor is established. Secondly, the mapping function including the body line-of-sight is designed using the arctangent function. Aiming at the attitude and trajectory coupling problem, combined with the high order sliding mode control, the integrated attitude and trajectory compound control law is designed to achieve multiple tasks while satisfying the body line-of-sight constraint and the impact angle constraint. Finally, the stability of the system controlled by the proposed control law is proved based on Lyapunov stability theory, and the superiority of the integrated design, the effectiveness of the mapping function's constraint and the robustness of the proposed control law are verified by simulation results.

Key words: kinetic interceptor, compound control, attitude and trajectory coupling, sliding mode variable structure control, integrated guidance and control, state constraint

CLC Number: 

[an error occurred while processing this directive]