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Satellite vibration control using frequency selective feedback

Satellite vibration control using frequency selective feedback
Satellite vibration control using frequency selective feedback
This paper addresses the problem of actively attenuating the vibration of plates on satellites. A pure feedback controller is demonstrated which operates at a set of dominant frequencies in a disturbance spectrum, where the control path model is estimated on-line. A new feature of the frequency selective feedback is the use of the inverse Hessian to improve adaptation speed. The control scheme also incorporates a frequency estimation technique to determine the relevant disturbance frequencies with higher precision than the standard fast Fourier transform (FFT). The controller is implemented on a test rig to demonstrate the practical feasibility of the method. A disturbance with three rational dominant frequencies is introduced. If FFT were used instead of the frequency estimation method proposed, then a large number of samples would be required to accurately estimate the disturbance frequencies, and, most importantly, FFT-estimated frequencies could lead to an unstable control system due to their granularity. Using the proposed frequency estimation method, the total achieved attenuation is 26 dB on the experimental rig.
hessian matrices, aerospace control, artificial satellites, feedback, frequency estimation, vibration control, non-controlled
1693-1698
Tan, A.C.H.
9dc5855f-02ef-4159-8ece-02afdb9d5eea
Meauers, T.
9f280d2d-2cd3-48be-80b6-566f9f400982
Veres, S.M.
909c60a0-56a3-4eb6-83e4-d52742ecd304
Aglietti, G S
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Rogers, E
611b1de0-c505-472e-a03f-c5294c63bb72
Tan, A.C.H.
9dc5855f-02ef-4159-8ece-02afdb9d5eea
Meauers, T.
9f280d2d-2cd3-48be-80b6-566f9f400982
Veres, S.M.
909c60a0-56a3-4eb6-83e4-d52742ecd304
Aglietti, G S
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Rogers, E
611b1de0-c505-472e-a03f-c5294c63bb72

Tan, A.C.H., Meauers, T., Veres, S.M., Aglietti, G S and Rogers, E (2003) Satellite vibration control using frequency selective feedback. Proceedings of the 43rd IEEE Conference on Decision and Control, United States. 09 - 12 Dec 2003. pp. 1693-1698 . (doi:10.1109/CDC.2003.1272856).

Record type: Conference or Workshop Item (Paper)

Abstract

This paper addresses the problem of actively attenuating the vibration of plates on satellites. A pure feedback controller is demonstrated which operates at a set of dominant frequencies in a disturbance spectrum, where the control path model is estimated on-line. A new feature of the frequency selective feedback is the use of the inverse Hessian to improve adaptation speed. The control scheme also incorporates a frequency estimation technique to determine the relevant disturbance frequencies with higher precision than the standard fast Fourier transform (FFT). The controller is implemented on a test rig to demonstrate the practical feasibility of the method. A disturbance with three rational dominant frequencies is introduced. If FFT were used instead of the frequency estimation method proposed, then a large number of samples would be required to accurately estimate the disturbance frequencies, and, most importantly, FFT-estimated frequencies could lead to an unstable control system due to their granularity. Using the proposed frequency estimation method, the total achieved attenuation is 26 dB on the experimental rig.

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More information

Published date: December 2003
Additional Information: ISSN 0191-2216
Venue - Dates: Proceedings of the 43rd IEEE Conference on Decision and Control, United States, 2003-12-09 - 2003-12-12
Keywords: hessian matrices, aerospace control, artificial satellites, feedback, frequency estimation, vibration control, non-controlled
Organisations: Computational Engineering & Design Group, Southampton Wireless Group

Identifiers

Local EPrints ID: 259057
URI: http://eprints.soton.ac.uk/id/eprint/259057
PURE UUID: 2243427c-3770-4c6e-9cbf-ced155b495ee
ORCID for E Rogers: ORCID iD orcid.org/0000-0003-0179-9398

Catalogue record

Date deposited: 10 Mar 2004
Last modified: 20 Jul 2019 01:23

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Contributors

Author: A.C.H. Tan
Author: T. Meauers
Author: S.M. Veres
Author: G S Aglietti
Author: E Rogers ORCID iD

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