Made available in DSpace on 2022-04-28T19:43:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-04-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); The Rao-Blackwellized Particle Filter (RaoBPF) and the Unscented Kalman Filter (UKF) were applied in this work to attitude and gyros bias estimation using simulated orbit and attitude measurement data for CBERS-4 (China Brazil Earth R...
Made available in DSpace on 2022-04-28T18:56:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-01-01; The purpose of this paper is to present a development of a non linear Kalman filter, based on the sigma point unscented transformation, aiming at real time satellite orbit determination using actual GPS measurements. If the dynamic system and the observation model are linear, the conventional Kalman fil...
Made available in DSpace on 2022-04-28T18:56:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01; The purpose of this work is to compare the extended Kalman filter (EKF) against the nonlinear sigma point Kalman filter (SPKF) for the satellite orbit determination problem, using GPS measurements. The comparison is based on the levels of accuracy improvement of the orbit dynamics model. The main subjec...