Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (7): 2158-2169.doi: 10.12305/j.issn.1001-506X.2023.07.27

• Guidance, Navigation and Control • Previous Articles     Next Articles

Reentry guidance method based on improved artificial potential field method

Shenming QUAN1,2, Songyan WANG1, Tao CHAO1,*, Ming YANG1   

  1. 1. Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China
    2. Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China
  • Received:2022-05-07 Online:2023-06-30 Published:2023-07-11
  • Contact: Tao CHAO

Abstract:

Aiming at the reentry guidance of hypersonic vehicles with no-fly zones, a three-dimensional guidance method is proposed based on the improved artificial potential field method (APFM). In the longitudinal direction, dynamic pressure, overload, and heat flow process constraints are regarded as virtual obstacles, and terminal altitude and speed are regarded as virtual target. Then, the longitudinal artificial potential field function is improved to adapt to the trajectory design of skip reentry trajectory and quasi-equilibrium gliding trajectory. A double layer predictive-correction algorithm is designed to solve the adjustable parameters to consider the effect of no-fly zones on three-dimensional trajectory. The simulation results show that the proposed improved APFM can adapt to different types of no-fly zone shapes. It can adapt to target points with larger crossrange requirements than existing methods. The parameters are simple to adjust and easy to implement in engineering.

Key words: reentry guidance, no-fly zones, virtual obstacles, improved artificial potential field method (APFM)

CLC Number: 

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