Citation

Zhou H, Zhao H, Huang H, Zhao X. Journal of Systems Engineering and Electronics 2017; 28(3): 546-555.

Copyright

(Copyright © 2017)

DOI

10.21629/JSEE.2017.03.14

PMID

unavailable

Abstract

A novel integrated guidance and control (IGC) design method is proposed to solve problems of low control accuracy for a suicide unmanned combat aerial vehicle (UCAV) in the terminal attack stage. First of all, the IGC system model of the UCAV is built based on the three-channel independent design idea, which reduces the difficulties of designing the controller. Then, IGC control laws are designed using the trajectory linearization control (TLC). A nonlinear disturbance observer (NDO) is introduced to the IGC controller to reject various uncertainties, such as the aerodynamic parameter perturbation and the measurement error interference. The stability of the closed-loop system is proven by using the Lyapunov theorem. The performance of the proposed IGC design method is verified in a terminal attack mission of the suicide UCAV. Finally, simulation results demonstrate the superiority and effectiveness in the aspects of guidance accuracy and system robustness. © 2017 Beijing Institute of Aerospace Information.

Language: en

Keywords

integrated guidance and control (IGC); nonlinear disturbance observer (NDO); terminal attack; trajectory linearization control (TLC); unmanned combat aerial vehicle (UCAV)