A Decoupled Approach for Flight Control

A decoupling method for flight control is presented that greatly simplifies the controller design. By approximating the higher order derivatives of the angle of attack and sideslip, it enables a rotation controller and a speed controller to be derived independently of each other, and thus gives acce...

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Veröffentlicht in:Modeling, identification and control identification and control, 2016-01, Vol.37 (4), p.237-246
Hauptverfasser: Oland, Espen, Kristiansen, Raymond
Format: Artikel
Sprache:eng
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Zusammenfassung:A decoupling method for flight control is presented that greatly simplifies the controller design. By approximating the higher order derivatives of the angle of attack and sideslip, it enables a rotation controller and a speed controller to be derived independently of each other, and thus gives access to a vast number of controller solutions derived for general classes of rotational and translational systems. For rotational control, a quaternion-based sliding surface controller is derived to align the wind frame in a desired direction, and using standard Lyapunov methods an airspeed controller is derived to ensure that an unmanned aerial vehicle moves with a positive airspeed. Simulations validate the potential of the proposed method, where the unmanned aerial vehicle is able to obtain leveled flight and move in a desired direction with a desired airspeed.
ISSN:0332-7353
1890-1328
1890-1328
DOI:10.4173/mic.2016.4.4