Full Envelope Modular Adaptive Control of a Fighter Aircraft using Orthogonal Least Squares

Full Envelope Modular Adaptive Control of a Fighter Aircraft using Orthogonal Least Squares

Van Oort, E.R.
Sonneveldt, L.
Chu, Q.P.
Mulder, J.A.

Aerospace Engineering

Control & Operations

2010-08-02

A new adaptive nonlinear flight controller is designed for a high fidelity, six degrees of freedom F-16 model for the entire flight envelope. The design is based on a modular approach which separates the design of the control law and the online identifier. The control law design is based on backstepping with nonlinear damping terms to robustify the design against parameter estimation errors and unknown bounded disturbances. The flight envelope is partitioned into hyperboxes, for each hyperbox a locally valid incremental model is estimated based on the linearized equations of motion. A continuous-time formulation of orthogonal least squares is used for identification of these locally valid models. The obtained local models are interpolated by means of B-splines to obtain a smooth model valid for the complete flight envelope. The performance of the resulting nonlinear adaptive control design is evaluated on the F-16 aircraft model for representative flight conditions, maneuvers, and failure cases.

http://resolver.tudelft.nl/uuid:ef521625-a562-49e9-9bde-44538ce159fe

https://doi.org/10.2514/6.2010-7857

American Institute of Aeronautics and Astronautics (AIAA)

978-1-60086-962-4

AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, 2-5 August 2010; AIAA 2010-7857

Institutional Repository

conference paper

© 2010 The Author(s)