Hypersonic Cruise Vehicle Attitude Control Based on NESO

Abstract:

Hypersonic cruise vehicles traverse abroad flight envelope, severe interference and aerodynamic parameters of great uncertainty. Aiming at these problems, the attitude control system is divided into two first-order subsystem based on the backstepping, which improved by introducing the command filter and the error signal correction. simplifies the solution of pseudo control of derivative, and considering the attenuation and noise on the system state. The aerodynamic parameters wide variation range and disturbances were classified into two subsystems uncertainties, and two sets of nonlinear extended state observer (NESO) were used to estimate them. The backstepping controller based on NESO was designed with combined estimated value and backstepping method. Additionally used fuzzy logic to tuning the NESO parameters. Simulation results show that the method can track the control signal accurately, and has good robustness against parameter uncertainty.

• Periodical: Applied Mechanics and Materials (Volumes 427-429)
• Pages: 913-920
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.427-429.913
• Online since: September 2013
• Authors: Cheng Bin Lian, Chen Bai, Zhang Ren, Xing Yue Shao
• Keywords: Aerodynamic Parameter Uncertainties, Backstepping, Hypersonic Cruise Vehicle, Nonlinear Extended State Observer

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