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Application of ellipsoidal estimation to satellite control

Rokityanski, D. Ya. and Veres, S.M. (2005) Application of ellipsoidal estimation to satellite control Mathematical and Computer Modelling of Dynamical Systems, 11, (2), pp. 239-249. (doi:10.1080/13873950500069326n).

Record type: Article

Abstract

The equations of motion of a small satellite moving along a prescribed trajectory under disturbances are analysed. Problems of this kind have been extensively investigated. The corresponding equations for relative motion errors, caused by the uncertainties in initial conditions and control implementation imperfections, are linearized. The linear equations are reformulated and the evolution equations for optimal ellipsoidal estimates of these errors are derived. It is shown that ellipsoidal bounding of reachable sets is an efficient approach to model uncertain linear dynamical systems. The procedure constructed in this paper allows one to take into account discrete observations and to design control aimed at compensating the disturbances between measurements. These measurements are assumed to be performed with small errors. A numerical example is given which illustrates that the presented control design algorithm is quite efficient and allows one to keep the error between the real and desired motion close to zero.

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More information

Published date: 2005
Keywords: uncertain dynamical systems, satellite control, ellipsoidal estimation, reachable sets

Identifiers

Local EPrints ID: 23291
URI: http://eprints.soton.ac.uk/id/eprint/23291
ISSN: 1387-3954
PURE UUID: 5b7bc177-e126-45d4-897f-cf41f363774f

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Date deposited: 09 Mar 2006
Last modified: 17 Jul 2017 16:18

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Contributors

Author: D. Ya. Rokityanski
Author: S.M. Veres

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