Systems Engineering and Electronics

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Integrated guidance and control design of the suicide UCAV for terminal attack

Huan Zhou, Hui Zhao, Hanqiao Huang*, and Xin Zhao   

  1. Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, China
  • Online:2017-06-20 Published:2010-01-03


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.