This article proposes a novel hybrid metaheuristic technique based on nonsingular terminal sliding mode controller, time delay estimation method, an extended grey wolf optimization algorithm and adaptive super twisting control law. The fast convergence is assured by controller owing to its inherent nonlinear property no prior knowledge of the robot dynamics required due estimation. proposed det...

This paper proposes an adaptive neural-network-based nonsingular fast terminal sliding mode (NN-NFTSMC) approach to address the trajectory tracking control problem of a quadrotor in presence model uncertainties and external disturbances. First, dynamic with uncertainty is derived. Then, scheme using (NFTSMC) proposed guarantee finite-time convergence its desired trajectory. NFTSMC firstly formu...

Model uncertainties and external disturbances present significant challenges for controlling fixed-wing unmanned aerial vehicles (UAVs). An adaptive smooth second-order time-varying nonsingular fast terminal sliding mode control method is proposed in this paper attitude airspeed of UAVs with model disturbances. This does not require information about the bounds can avoid overestimation gains. A...