Journal of Astronautics ›› 2020, Vol. 41 ›› Issue (7): 839-849.doi: 10.3873/j.issn.1000-1328.2020.07.002

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Quasi Linear System Approaches for Flight Vehicle Control ——Part 2: Methods and Prospects

DUAN Guang ren   

  1. Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, China
  • Received:2020-03-16 Revised:2020-06-06 Online:2020-07-15 Published:2020-07-25

Abstract: For the general second-order quasi-linear system model describing the six typical flight vehicle control problems proposed in the part one of the paper, a direct parametric design approach is introduced, which designs a quasi-linear state feedback control law that makes the closed-loop system a constant second-order one with a desired closed-loop eigenstructure. Furthermore, all the design degrees of freedom are provided, which can be comprehensively optimized to realize the multi-objective designs of the system, and the design requirements on the desired eigenvector structures, disturbance attenuation and insensitive closed-loop eignenvlaues are treated as examples. Finally, the development prospect of the quasi-linear system theory is outlined.

Key words: Flight vehicle control, Quasi-linear systems, Parametric approach, Design degree of freedom, Multi-objective designs

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