Carrier-based aircraft direct lift control based on sliding mode observer and non-linear dynamic inversion technology

Carrier-based aircraft are an important part of the aircraft carrier battle group. There are many technical challenges in practical application, including the landing technology. This work proposes a sliding mode observer and nonlinear dynamic inversion technology-based direct lift control system for carrier-based aircraft, aiming to address the issues of multivariable coupling and difficult landing environments. In order to account for the impact of airwake on control accuracy, this research designs an adaptive sliding mode observer that can accurately assess the impact of external disturbances on the carrier aircraft's motion. To realize the decoupling of control inputs, a direct lift control system for carrier-based aircraft is established by using nonlinear dynamic inverse control technology, and a self-adjusting pigeon-inspired optimization (SAPIO) algorithm is proposed for parameter tuning of the system. The simulation results show that the proposed direct lift control system has higher control accuracy than the traditional proportional-integral-differential control system.