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Micro air vehicle control design : a comparison of classical and dynamic inversion techniques

Author(s)
Brown, Patrick D. (Patrick Daniel), 1975-
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Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.
Advisor
Marc W. McConley.
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M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
Micro Air Vehicles (MAVs) are envisioned as autonomous aerial robots capable of flying into an urban environment to perform reconnaissance, targeting, and remote sensing. These vehicles are significantly smaller than current aircraft, with maximum dimensions of 15 centimeters, presenting challenges to vehicle packaging and vehicle control. This thesis describes the design and analysis of control algorithms for a rotorcraft MAV using classical and dynamic inversion approaches. Classical control algorithms were developed based on linear, single input/single output analysis and were successfully implemented in hover, climb, and forward flight simulations. A dynamic inversion routine was then applied to the inner-loop control, providing improved inner-loop performance compared to the classical approach for nominal flight conditions. Finally, the two approaches were compared on the basis of their performance, disturbance rejection, and robustness. Dynamic inversion generally outperformed the classical approach for non-linear, state-coupled flight conditions, but suffered when subject to unmodeled dynamics and modeling errors.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.
 
Includes bibliographical references (p. 145).
 
Date issued
1999
URI
http://hdl.handle.net/1721.1/8791
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Publisher
Massachusetts Institute of Technology
Keywords
Aeronautics and Astronautics.

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