Dynamics and attitude control of space-based synthetic aperture radar
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 propose...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-02-01
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| Series: | Nonlinear Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nleng-2022-0277 |
| _version_ | 1811159369983721472 |
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| author | Khoroshylov Serhii Martyniuk Serhii Sushko Oleksandr Vasyliev Volodymyr Medzmariashvili Elguja Woods William |
| author_facet | Khoroshylov Serhii Martyniuk Serhii Sushko Oleksandr Vasyliev Volodymyr Medzmariashvili Elguja Woods William |
| author_sort | Khoroshylov Serhii |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-10T05:39:56Z |
| format | Article |
| id | doaj.art-6a4bbce618fc479c927e6af5dc340c6a |
| institution | Directory Open Access Journal |
| issn | 2192-8029 |
| language | English |
| last_indexed | 2024-04-10T05:39:56Z |
| publishDate | 2023-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nonlinear Engineering |
| spelling | doaj.art-6a4bbce618fc479c927e6af5dc340c6a2023-03-06T10:26:18ZengDe GruyterNonlinear Engineering2192-80292023-02-0112137556910.1515/nleng-2022-0277Dynamics and attitude control of space-based synthetic aperture radarKhoroshylov Serhii0Martyniuk Serhii1Sushko Oleksandr2Vasyliev Volodymyr3Medzmariashvili Elguja4Woods William5“EOS Ukraine” Foreign Company, 31-D Bohdana Khmelnitskogo Ave., Dnipro, 49055, Ukraine“EOS Ukraine” Foreign Company, 31-D Bohdana Khmelnitskogo Ave., Dnipro, 49055, Ukraine“EOS Ukraine” Foreign Company, 31-D Bohdana Khmelnitskogo Ave., Dnipro, 49055, Ukraine“EOS Ukraine” Foreign Company, 31-D Bohdana Khmelnitskogo Ave., Dnipro, 49055, UkraineTransformable Structures. Georgia LLC, Tbilisi, GeorgiaEarth Observing System Data Analytics Inc, Menlo Park, USAThis 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.https://doi.org/10.1515/nleng-2022-0277flexible reflectornonlinear transformationin-orbit identificationrobust controlslewing maneuvers |
| spellingShingle | Khoroshylov Serhii Martyniuk Serhii Sushko Oleksandr Vasyliev Volodymyr Medzmariashvili Elguja Woods William Dynamics and attitude control of space-based synthetic aperture radar Nonlinear Engineering flexible reflector nonlinear transformation in-orbit identification robust control slewing maneuvers |
| title | Dynamics and attitude control of space-based synthetic aperture radar |
| title_full | Dynamics and attitude control of space-based synthetic aperture radar |
| title_fullStr | Dynamics and attitude control of space-based synthetic aperture radar |
| title_full_unstemmed | Dynamics and attitude control of space-based synthetic aperture radar |
| title_short | Dynamics and attitude control of space-based synthetic aperture radar |
| title_sort | dynamics and attitude control of space based synthetic aperture radar |
| topic | flexible reflector nonlinear transformation in-orbit identification robust control slewing maneuvers |
| url | https://doi.org/10.1515/nleng-2022-0277 |
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