Predefined-time anti-saturation fault-tolerant attitude control for tailless aircraft with guaranteed output constraints

This work investigates the anti-saturation attitude tracking control for tailless aircraft with guaranteed output constraints, in presence of uncertain inertia parameters, bounded external disturbance, and actuator faults/failures. A predefined-time adaptive backstepping scheme has been proposed, main features this lie (a) designing a filter to deal ‘explosion complexity’ singularity problem; (b) introducing nonlinear state-dependent function handle asymmetric time-varying constraints; (c) compensating impact faults/failures input saturation by estimation simultaneously. Moreover, proposed can ensure all signals closed-loop system converge residual set around origin within predefined time, time constant be freely designer, independently initial conditions. Finally, numerical simulations have conducted verify performance fault-tolerant scheme.