Robust Optimal Flight Control for QU AV with Input Delay and External Disturbance
This paper proposes an adaptive dynamic programming(ADP)based robust optimal trajectory tracking strategy for quadrotor unmanned aerial vehicles(QUAV)with constraints of external disturbance and input delay.Firstly,disturbances observer technique is applied to estimate external disturbance in both position and attitude loops;Then,the input delay constraint is handled with Padé approximate method;And a single network ADP algorithm based robust trajectory tracking strategy under backstepping farm is designed;Finally,Lyapunov method is applied for stability analysis of whole closed-loop system,and simulation tests are carried out for QUAV dynamics model to verify the reliability of proposed robust optimal flight control strategy.
automatic controlquadrotors unmanned aerial vehicleinput delayadaptive dynamic programmingoptimal flight control