Dynamics and attitude control of space-based synthetic aperture radar

Abstract: This work tackles the problem of attitude control of a space-based synthetic aperture radar with a deployable reflector antenna, representing a lightly damped uncertain vibratory system with highly nonlinear dynamics. A control strategy based on two identifiable in-orbit vector parameters is proposed to make the robust controller less conservative. The first parameter is used in the feedforward loop to achieve a trade-off between the energy efficiency of maneuvers and the amplitudes of the oscillatory response. The feedback loop utilizes the second parameter to accurately handle the controller-structure interactions by adaptive notch filters. The notch filters are included in the augmented plant at the design stage to guarantee closed-loop robustness against disturbances, unmodeled dynamics, and parametric uncertainty. The system’s robustness and specified requirements are confirmed by formal criteria and numerical simulations using a realistic model of the flexible spacecraft.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Dynamics and attitude control of space-based synthetic aperture radar ; volume:12 ; number:1 ; year:2023 ; extent:21 ; Nonlinear engineering ; 12, Heft 1 (2023) (gesamt 21)

Beteiligte, Orts- und Zeitangaben

• Urheber: Khoroshylov, Serhii ; Martyniuk, Serhii ; Sushko, Oleksandr ; Vasyliev, Volodymyr ; Medzmariashvili, Elguja ; Woods, William

Weitere Informationen

• DOI: 10.1515/nleng-2022-0277
• URN: urn:nbn:de:101:1-2023021713131757212969
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:55 MESZ