Composite Control of Aerodynamic Direct Force and Thrust Vector for Carrier-Based Aircraft based on Nonlinear Dynamic Inversion

Aiming at the nonlinear dynamics and strong coupling effects of thrust-vectoring carrier-based aircraft during landing, this study proposes a composite control strategy combining aerodynamic direct force control with thrust vector deflection. Considering actuator constraints and carrier deck disturbances, a six-degree-of-freedom nonlinear dynamic model describing longitudinal aircraft motion is established. The core innovation lies in designing a hierarchical control framework based on Nonlinear Dynamic Inversion (NDI), which coordinates multiple actuators including flaps, horizontal stabilizer, throttle, and thrust vectoring nozzles to decouple trajectory and attitude dynamics. To enhance robustness against carrier airwake and model uncertainties, an Adaptive Super-Twisting Extended State Observer (ASTESO) is introduced for real-time estimation and compensation of unmodeled disturbances. The control system integrates direct lift allocation with thrust vector moment compensation, achieving precise glide path tracking under constant angle-of-attack conditions. Comparative simulations demonstrate that this strategy outperforms traditional PID and non-thrust-vectoring configurations, exhibiting superior landing accuracy, speed regulation, and disturbance rejection capability.