With the rapid development of computer technology, automatic control technology and
communication technology, research on unmanned aerial vehicles (UAVs) has attracted …

In this article, a sliding mode dual-channel disturbance rejection control based on an
extended state observer is proposed for the attitude control of a quadrotor under unknown …

Autonomous unmanned aerial vehicles (UAVs) that can execute aggressive (ie, high-speed
and high-acceleration) maneuvers have attracted significant attention in the past few years …

This paper presents two types of nonlinear controllers for an autonomous quadrotor
helicopter. One type, a feedback linearization controller involves high-order derivative terms …

This thesis work focused on the study of a quadrotor helicopter. The dynamic system
modelling and the control algorithm evaluation were carried out. To test the results, a …

The design of a flight control system capable of not only stabilising attitude but also tracking
a trajectory accurately for an under-actuated quadrotor aircraft is quite challenging. This …

This paper deals with the design and implementation of a nonlinear control algorithm for the
attitude tracking of a four-rotor helicopter known as quadrotor. This algorithm is based on the …

This paper addresses the stability and tracking control problem of a quadrotor unmanned
flying robot vehicle in the presence of modeling error and disturbance uncertainty. The input …

This study proposes a novel nonlinear resilient trajectory control for a quadrotor unmanned
aerial vehicle (UAV) using backstepping control and nonlinear disturbance observer. First, a …

This work presents a direct approximate-adaptive control, using CMAC nonlinear
approximators, for an experimental prototype quadrotor helicopter. The method updates …