Voinot, Olivier and Alazard, Daniel and Clément, Benoît Unstationnary control of a launcher using observer-based structures. (2003) In: American Control Conference (ACC'03), 04-06 Jun 2003, Denver, United States .
(Document in English)
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This paper deals with the design of a gain-scheduled controller for the attitude control of a launcher during atmospheric flight. The design is characterized by classical requirements such as phase/gain margins and flexible mode attenuations as well as time-domain constraints on the response of angle of attack to a worstcase wind profile. Moreover, these requirements must be fulfilled over the full atmospheric flight envelope and must be robust against parametric uncertainties. In order to achieve this goal, we propose a method based on minimal observer-based realizations of arbitrary stabilizing compensators. An original technique to assign the closed-loop dynamics between the state-feedback dynamics and the state-estimation dynamics is presented for the H∞ compensators case. The structure is used to mix various specifications through the Cross Standard Form(CSF) and to perform a smooth gain scheduling interpolation through an Euler-Newton algorithm of continuation.
|Item Type:||Conference or Workshop Item (Paper)|
|Audience (conference):||International conference proceedings|
|Institution:|| Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE|
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
French research institutions > Centre National des Etudes Spatiales - CNES
Département de Mathématiques, Informatique, Automatique - DMIA (Toulouse, France) - Automatique, Dynamique et Interface des Systèmes - ADIS
|Deposited By:||Daniel Alazard|
|Deposited On:||20 Jan 2009 10:30|
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