Title :
Drag free control for the European satellite GOCE. Part II: digital control
Author :
Canuto, Enrico ; Bona, Basilio ; Calafiore, Giuseppe ; Indri, Marina
Author_Institution :
Dipt. di Autom. e Inf., Politecnico di Torino, Italy
Abstract :
The paper gives an overview of the attitude and drag-free control (in short DFC) of the European Gravity Field and Ocean Circulation Explorer (GOCE) satellite. The DFC has been designed and tested in view of the Preliminary Design Review (PDR). The DFC is intended to enable the operations of a gravity gradiometer for the Earth gravity field recovery. The DFC has been fully designed on a simplified discrete-time model derived from the ´fine´ dynamics of the spacecraft and its environment, as outlined in a companion paper. The DFC has been tested against severe uncertainties and its code has been integrated into GOCE end-to-end simulator.
Keywords :
attitude control; digital control; discrete time systems; gravimeters; gravity; robust control; space vehicles; uncertain systems; European gravity field and ocean circulation explorer satellite; attitude control; digital control; discrete time model; drag free control; earth gravity field recovery; end-to-end simulator; fine dynamics; gravity gradiometer; preliminary design review; spacecraft; uncertainties; Attitude control; Digital control; Digital-to-frequency converters; Earth; Gravity; Oceans; Satellites; Space vehicles; Testing; Uncertainty;
Conference_Titel :
Decision and Control, 2002, Proceedings of the 41st IEEE Conference on
Print_ISBN :
0-7803-7516-5
DOI :
10.1109/CDC.2002.1185004
