Attitude control for an Hybrid Unmanned Aerial Underwater Vehicle: A robust switched strategy with global stability
Armando Alves Neto, Leonardo A. Mozelli, Paulo L. J. Drews, Mario F. M. Campos
Abstract
This paper presents a method for stabilizing the attitude of a Hybrid Unmanned Aerial Underwater Vehicle. Firstly, we present aerodynamic and hydrodynamic models for the angular motion of our robot, discussing effects like buoyancy force and added inertia. Next, we apply robust control techniques for both environment, aerial and underwater, based on linear uncertain models with only four vertices and well-defined stability criteria, such as D-stability and ℋ2 performance. Gain matrices Kair and Kwat are computed and the attitude of the vehicle at the hovering operation point for each environment is controlled, respectively. Finally, a procedure is proposed to check the global stability for the switching control case, when the robot changes from air to water (or vice-versa). Numerical simulations with disturbances and switching control are presented to show the stability at different initial conditions.
BibTeX
@inproceedings{icra2015_attitudecontrolf,
title = {Attitude control for an Hybrid Unmanned Aerial Underwater Vehicle: A robust switched strategy with global stability},
author = {Armando Alves Neto and Leonardo A. Mozelli and Paulo L. J. Drews and Mario F. M. Campos},
booktitle = {ICRA 2015},
year = {2015}
}