Civil engineers always face the challenge of uncertainty in planning, building, and
maintaining infrastructure. These works rely heavily on a variety of surveying and monitoring …

This paper presents a literature review on current studies in cooperative control of fixed-wing
drones, including maneuvering through adjustments of the tail, rotor, and wing …

A revisited quadrotor model is proposed, including in particular the so-called rotor drag. It
differs from the model usually considered, even at first order, and much better explains the …

Quadrotor unmanned aerial vehicle (UAV) is an underactuated multi-input and multi-output
(MIMO) system which has nonlinear dynamic behavior such as high coupling degree and …

Nowadays, the chattering problem in sliding mode control is one of the most important points
to consider in real-time applications. To address this problem, a real-time robust altitude …

A robust prescribed performance control (PPC) scheme with practically finite-time stability is
proposed for Euler–Lagrange systems with completely unknown dynamics. Firstly, a novel …

This article presents a comparison of three control techniques: nested saturations,
backstepping, and sliding modes. The control objective consists of obtaining the best control …

This paper presents a nonlinear double-integral observer based on finite-time stability. The
proposed double-integral observer can estimate the onefold and double integrals of a signal …

We propose a vision-based position control method, with the purpose of providing some
level of autonomy to a quad-rotor unmanned aerial vehicle. Our approach estimates the …

An original configuration of a small aerial vehicle having eight rotors is presented. Four
rotors are devoted to the stabilization of the orientation of the helicopter, and the other four …