Observer-based incremental backstepping sliding-mode fault-tolerant control for blended-wing-body aircrafts

This paper presents an adaptive incremental nonlinear backstepping sliding-mode (INBSM) controller, for fault tolerant tracking control of a blended wing body (BWB) aircraft with unknown disturbances and actuator faults. The INBSM controller is based on dynamics model the BWB aircraft. In addition, radial basis function neural network disturbance observer (RBF-NNDO) proposed to enhance attenuation ability. A estimator suggested improve level. closed-loop system proved be globally asymptotically stable using Lyapunov theory. Simulations combined NNDO-INBSM are presented compared both design fuzzy controller. results demonstrate improved capability execute realistic attitude missions, even in presence center gravity movement, disturbances, uncertainties