Prescribed performance adaptive constrained backstepping controller for carrier-based longitudinal landing with magnitude constraints

The importance of carrier-based landing has been a controversial topic. The wave excites the ship to make six-degree-of-freedom motion, accompanied by atmosphere turbulence flow and ship airwake, making the carrier-based aircraft landing a great challenge. Aimed to ensure the safety of carrier-based aircraft and precision landing, a method of the constrained command filtered prescribed performance (CCFPP) is presented and applied to longitudinal landing. The proposed method in this paper has the following advantages. Firstly, the objectives of the approach are to stabilize the aircraft dynamics and to achieve accurate command landing track considering magnitude, rate, and bandwidth constraints on the aircraft states and the actuator. Secondly, in order to provide robustness to aerodynamic uncertainties, adaptive laws are designed to estimate unknown parameters of the model. Finally, another novel aspect of this approach is that not only analyzing the landing steady performance but also the transient performance, such as overshoot and convergence time. Lyapunov stability analysis and simulation demonstrations of the achieved performance are included.