%0 Conference Proceedings
%4 sid.inpe.br/plutao/2015/06.01.11.54
%2 sid.inpe.br/plutao/2015/06.01.11.54.47
%@isbn 9783896855756
%F lattes: 1786255724025154 1 KugaBrinCarr:2015:CaStCO
%T Attitude estimation, control and momentum damping: a case study for CONASAT
%D 2015
%A Kuga, Hélio Koiti,
%A Bringhenti, Philipe M,
%A Carrara, Valdemir,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B 10th International Symposium of the Academy of Astronautics: Small Satellites for Earth Observation
%C Berlim Berlin
%8 2015
%I Wissenschaft und Technik Verlag
%P 389-392
%S Proceedings
%K CONASAT, attitude estimation, attitude control, momentum damping.
%X This paper presents the attitude estimation using Kalman filter, the PID control strategy and the momentum dumping technique using magnetorquers for the Brazilian satellite CONASAT. Attitude will be represented in quaternions, so the Kalman filter will be implemented using the reduced order covariance, to avoid the singularity of the covariance matrix. The reaction wheel desaturation will be made using the Conventional Cross Product Law (CCPL) and a bang-bang strategy, for comparison by means of the magnetorquers. The results show that the Kalman filter estimates correctly the gyroscope bias, allowing the PID controller to keep the attitude error below 5°, even during the satellite passage through the Earths shadow. The wheels speed decreased to the reference value (zero) in about 4500s, using either CCPL or the bang-bang strategy.
%@language en
%3 Bringhenti&Carrara&Kuga - Full_Paper.pdf
%O Setores de Atividade: Pesquisa e desenvolvimento científico.