Research on Dynamic Inverse Direct Lift Carrier Based Landing Control Method Based on Online Aerodynamic Identification
摘要
In response to the need for decoupling trajectory and attitude control during the final phase of carrier-based aircraft landing, this paper introduces a direct lift Nonlinear dynamic inverse (NDI) control method specifically designed for such aircraft. Initially, the command solution formulas for both trajectory control and attitude control of carrier-based aircraft are derived separately. Subsequently, incorporating online aerodynamic identification, the flap and elevator deflection commands are determined. To enhance attitude control capabilities, a lead compensator is integrated into the attitude control loop, thereby refining the maintenance of the angle of attack throughout the landing sequence. Simulation results indicate that the recursive least squares (RLS) method can accurately identify aerodynamic parameters without the need for supplementary inputs. Concurrently, the direct lift dynamic inverse landing control strategy proposed in this paper achieves precise trajectory tracking. Moreover, it maintains accurate attitude stability even in the presence of the ship’s air weak. Furthermore, with the addition of the lead compensator, the system exhibits improved attitude retention.