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Autonomous Flight in Unknown Indoor Environments

Author(s)
Bachrach, Abraham Galton; He, Ruijie; Roy, Nicholas
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Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/
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Abstract
This paper presents our solution for enabling a quadrotor helicopter, equipped with a laser rangefinder sensor, to autonomously explore and map unstructured and unknown indoor environments. While these capabilities are already commodities on ground vehicles, air vehicles seeking the same performance face unique challenges. In this paper, we describe the difficulties in achieving fully autonomous helicopter flight, highlighting the differences between ground and helicopter robots that make it difficult to use algorithms that have been developed for ground robots. We then provide an overview of our solution to the key problems, including a multilevel sensing and control hierarchy, a high-speed laser scan-matching algorithm, an EKF for data fusion, a high-level SLAM implementation, and an exploration planner. Finally, we show experimental results demonstrating the helicopter's ability to navigate accurately and autonomously in unknown environments.
Description
http://multi-science.metapress.com/content/80586kml376k2711/
Date issued
2009-12
URI
http://hdl.handle.net/1721.1/66162
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
International Journal of Micro Air Vehicles
Publisher
Multi-Science Publishing
Citation
Bachrach, Abraham, Ruijie He, and Nicholas Roy. “Autonomous Flight in Unknown Indoor Environments.” International Journal of Micro Air Vehicles 1 (2009): 217-228. DOI: 10.1260/175682909790291492
Version: Author's final manuscript
ISSN
1756-8293

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