Simulation and Controller Design for Drag-free and Attitude System of Single Test Mass Drag-free Satellite

Details Simulation and Controller Design for Drag-free and Attitude System of Single Test Mass Drag-free Satellite Simulation and Controller Design for Drag-free and Attitude System of Single Test Mass Drag-free Satellite

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..525l&link_type=abstract

Acta Astronomica Sinica, vol. 52, no. 6, p.525-536

Astronomy and Astrophysics

Astronomy

Space Vehicles: Instruments, Methods: Numerical

Scientific paper

Taking the ASTROD I mission as an example, the structure and principle of drag-free satellite are presented. We derive the dynamics of drag-free satellite and its test mass, based on which a numerical simulator is built for them. Then, {H_2} optimal strategy is used to develop the controller for the satellite to reduce the resulted noise. The comparison between the transfer function analysis and the periodogram of numerical simulation indicates that linearization of the dynamics is appropriate and the simulator is correct. Also we can conclude that the controller can fulfill the requirement of the mission.

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