The operation of Unmanned Aerial Vehicles (UAVs) is often subject to state-dependent
alterations and unstructured uncertainty factors, such as unmodelled dynamics …

This work designed a disturbance-observer-based nonlinear sliding mode surface controller
(SMC) and validated the controller using a simulated PX4-conducted quadcopter. To …

A robust trajectory tracking control scheme for quadrotor unmanned aircraft vehicles under
uncertainties is proposed herein. A tracking controller combined with the sliding mode and …

In this study, a sliding mode surface controller (SMC) designed for a quadcopter is
experimentally tested. The SMC was combined with disturbance observers in six degrees of …

In this paper we propose a centralized disturbance observer-based integral-augmented
backstepping nonlinear motion control for a multirotor unmanned aerial vehicle (UAV). The …

This work presents an adaptive open-source implementation of ArduPilot: the adaptive
mechanisms in the autopilot are inspired by model reference stabilization (MRS) and are …

Quadrotors are of great interest as they have the potential to improve our quality of life. Their
control is an exciting academic research problem with many results published in the …

Quadcopters require affordable and efficient controls to accurately follow planned flight
paths. At now, there are various techniques available for path tracking, which utilize either …

With the improvements in the autonomy and capability of Unmanned Aerial Vehicles (UAVs),
there is an increased interest in their applications in infrastructure inspection and …