Design and Performance Study of Two Sliding Mode Backstepping Control Schemes for Roll Channel of Delta Wing Aircraft

摘要

This paper presents a performance comparison of two nonlinear control schemes to control the angle of roll channel for delta wing aircraft with the presence of wing rock phenomenon. The proposed nonlinear controllers for the considered aircraft are the sliding mode backstepping controller and disturbance observer-based sliding mode backstepping controller. The stability of the roll-channel system based on both nonlinear controllers is analyzed using Lyapunov method and the zero-convergence of roll angle error and estimation error of disturbance observer has been guaranteed and proved. The performance of the proposed controllers has assessed and compared in terms of transient characteristics and the robustness characteristics. The effectiveness of the controllers for the roll-channel system of aircraft has been verified via computer simulation within the environment of MATLAB package.