Satellite vibration control using frequency selective feedback
Tan, A.C.H., Meauers, T., Veres, S.M., Aglietti, G S and Rogers, E (2003) Satellite vibration control using frequency selective feedback. In, Proceedings of the 43rd IEEE Conference on Decision and Control, Maui County, US, 09 - 12 Dec 2003. , 1693-1698. (doi:10.1109/CDC.2003.1272856).
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Description/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.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | ISSN 0191-2216 |
| Keywords: | hessian matrices, aerospace control, artificial satellites, feedback, frequency estimation, vibration control, non-controlled |
| Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science Q Science > QC Physics T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Faculty of Engineering and the Environment > Aeronautics, Astronautics and Computational Engineering > Computational Engineering & Design Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control |
| Item ID: | 259057 |
| Date Deposited: | 10 Mar 2004 |
| Last Modified: | 25 Sep 2012 14:33 |
| Contributors: | Tan, A.C.H. (Author) Meauers, T. (Author) Veres, S.M. (Author) Aglietti, G S (Author) Rogers, E (Author) |
| Date: | December 2003 |
| Additional Information: | ISSN 0191-2216 |
| Status: | Published |
| Further Information: | Google Scholar |
| ISI Citation Count: | 0 |
| URI: | http://eprints.soton.ac.uk/id/eprint/259057 |
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