Station-Keeping Maneuvers for a Geostationary Satellite Using Linear Quadratic Regulator

Details Station-Keeping Maneuvers for a Geostationary Satellite Using Linear Quadratic Regulator Station-Keeping Maneuvers for a Geostationary Satellite Using Linear Quadratic Regulator

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jass...14..142l&link_type=abstract

Journal of Astronomy and Space Science, vol. 14, no. 1, p. 142-149.

Astronomy and Astrophysics

Astronomy

Scientific paper

This paper applied one of the well-known optimal control theory, namely, linear quadratic regulator(LQR), to the station-keeping maneuvers(SKM) for a geostationary satellite. The boundary conditions to transfer the system with a good accuracy at a terminal time were based upon the predicted orbital data which are created due to the Earth's non-uniform mass distribution's effect during 14 days and due to luni-solar effect during 28 days. Through the linearization of the nonlinear system equation with respect to reference orbit and the numerical integration of Riccati equation, the optimal trajectories and the corresponding control law have been obtained by using LQR. from the comparison of ¡âV obtained by LQR with the ¡âV obtained anatically by geometric method, Station Keeping Maneuvers(SKM) via LQR may provide comparable results to a real system. Furthermore it will demonstrate the possibility in fuel optimization and life extension of geostationary satellite.

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