Abstract Unmanned Aircraft Systems (UASs) are becoming ever more promising over the
last decade. The Sense and Avoid (S&A) system plays a profoundly important role in …

An underactuated mechanical system (UMS) is a system which has fewer independent
control actuators than degrees of freedom to be controlled. Control of UMS is considered as …

In this document, we present the main ideas and results concerning high‐gain observers
and some of their applications in control. The introduction gives a brief history of the topic …

Field theory is a more or less coherent approach in the social sciences whose essence is
the explanation of regularities in individual action by recourse to position vis-à-vis others …

Illustrating the power, simplicity, and generality of the concept of flatness, this reference
explains how to identify, utilize, and apply flatness in system planning and design. The book …

A new system equivalence relation, using the framework of differential geometry of jets and
prolongations of infinite order, is studied. In this setting, two systems are said to be …

This thesis is devoted to nonlinear control, reduction, and classification of underactuated
mechanical systems. Underactuated systems are mechanical control systems with fewer …

It is shown that the performance of a globally bounded partial state feedback control of a
certain class of nonlinear systems can be recovered by a sufficiently fast high-gain observer …

Problems in the motion control of aircraft are of perennial interest to the control engineer as
they tend to be of complex and nonlinear nature. Modelling and Control of Mini-Flying …

We present control methods for an autonomous four-rotor helicopter, called a quadrotor,
using visual feedback as the primary sensor. The vision system uses aground camera to …