The quadrotor unmanned aerial vehicle is a great platform for control systems research as
its nonlinear nature and under-actuated configuration make it ideal to synthesize and …

In the past decade Unmanned Aerial Vehicles (UAVs) have become a topic of interest in
many research organizations. UAVs are finding applications in various areas ranging from …

Parametric uncertainties and coupled nonlinear dynamics are inherent in quadrotor
configuration and infer adaptive nonlinear approaches to be used for flight control system …

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 study addresses the control problem of an unmanned quadrotor in an indoor
environment where there is lack of absolute localisation data. Based on an attached inertia …

Unmanned Aerial Vehicles (UAVs) offer a wide range of interesting military and commercial
applications at reduced costs. A couple of their more interesting characteristics include: They …

The aim of this article is to present a novel quaternion based control scheme for the attitude
control problem of a quadrotor. A quaternion is a hyper complex number of rank 4 that can …

A quadrotor is a rotorcraft capable of hover, forward flight, and VTOL and is emerging as a
fundamental research and application platform at present with flexibility, adaptability, and …

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

In this paper, we present a model of a four rotor vertical take-off and landing (VTOL)
unmanned air vehicle known as quadrotor aircraft. And we explained its control architecture …