Compound Control Methodology for a Robust Missile Autopilot Design
Publication: Journal of Aerospace Engineering
Volume 28, Issue 6
Abstract
This paper considers the application of compound control method to high-performance autopilot design for aerodynamically controlled agile missiles. The control objective in this paper is to track a reference angle of attack command signal in the presence of external disturbance and aerodynamic coefficient uncertainty with desired performance. The external disturbances and the aerodynamic uncertain terms are first lumped together as the lumped uncertainties, which can be estimated accurately by the introduced extended state observer (ESO). Combining the sliding mode control (SMC) and backstepping techniques, a robust nonsmooth (but continuous) compound control law is developed for angle of attack tracking. With the aid of Lyapunov stability criteria, it is proven that the angle of attack tracking error will converge into a small neighborhood around the origin in finite time. Theoretical analysis and simulation results demonstrate the robustness and effectiveness of the proposed composite method.
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Acknowledgments
The research reported in this paper supported by the Natural Science Foundation of China (Grant No. 61172182). The authors are grateful to the editor and anonymous reviewers, for their helpful comments and constructive suggestions with regards to the revision of the paper.
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Published In
Journal of Aerospace Engineering
Volume 28 • Issue 6 • November 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jun 17, 2014
Accepted: Nov 20, 2014
Published online: Dec 17, 2014
Discussion open until: May 17, 2015
Published in print: Nov 1, 2015
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