Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (5): 1316-1325.doi: 10.12305/j.issn.1001-506X.2021.05.20

• Guidance, Navigation and Control • Previous Articles     Next Articles

Robust predictor-corrector guidance with multiple constraints for reusable launch vehicles

Yanli DU1,*(), Wu LIU1(), Mingming TANG1(), Yuhui WANG2()   

  1. 1. College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    2. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
  • Received:2020-07-14 Online:2021-05-01 Published:2021-04-27
  • Contact: Yanli DU E-mail:duyanli@nuaa.edu.cn;liuwu@nuaa.edu.cn;1906423583@qq.com;wangyh@nuaa.edu.cn

Abstract:

Aiming at general constraints, waypoint constraint, reverse rate constraint of bank angle and parameter uncertainties for reusable launch vehicles (RLVs) during re-entry, a kind of robust predictor-corrector guidance method meeting multiple constraints is proposed. Firstly, the modified quasi-equilibrium glide condition is exploited to transform general constraints into the amplitude constraint of bank angle. Secondly, a dichotomy-based waypoint guidance law is presented to speedily determine the reverse position of bank angle, and the reverse rate constraint is converted to that of energy which can be calculated during the prediction correction process. Next, an online adjustment strategy of angle of attack and cross-range error corridor based on the nominal lift-drag-ratio and residual energy is proposed to deal with the parameter uncertainty robust guidance issue. Simulation tests show that the RLV can satisfy multiple constraints and terminal guidance requirement in the presence of parameter uncertainties, which verifies the effectiveness and robustness of the presented method.

Key words: reusable launch vehicle (RLV), re-entry guidance, multiple constraints, predictor-corrector guidance, robust guidance

CLC Number: 

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