6 documents found, page 1 of 1
Rao-Blackwellized Particle Filter for the CBERS-4 attitude and gyros bias estim...
Silva, W. R.; Garcia, R. V.; Santilli, G.; Kuga, H. K.; Zanardi, M. C.F.P.S. [UNESP]; Pardal, P. C.P.M.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...
Non linear sigma point kalman filter applied to orbit determination using GPS m...
Pardal, P. C.P.M.; Kuga, H. K.; Vilhena De Moraes, R. [UNESP]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...
Comparing the extended and the sigma point Kalman filters for orbit determinati...
Pardal, P. C.P.M.; Kuga, H. K.; Vilhena De Moraes, R. [UNESP]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...
The quest for Brazilian space research
Kuga, H. K.; Lopes, RVD; Orlando, V; Zanardi, MCFPS; Crassidis, J. L.; Markley, F. L.; Junkins, J. L.; Howell, K. C.Made available in DSpace on 2020-12-10T18:05:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-01-01; This paper describes how QUEST(1) (QUaternion ESTimator algorithm) influenced Brazilian space research activities. Indeed, we present a short survey paper on researches in attitude determination and propagation in Brazil arising from the influence of the author of QUEST. We show how Brazilian researcher...
Estimating the trajectory of a space vehicle passing by the Moon using Kalman F...
Ferreira, A. F.S.; Kuga, H. K.; Prado, A. F.B.A.; Winter, O. C. [UNESP]Made available in DSpace on 2018-12-11T17:27:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-10-07; The trajectory of a spacecraft going to the periapsis of its orbit around the smaller body of a binary system is estimated from the observed data using a Kalman Filter. Simulations of the trajectories will be made to generate the data of the spacecraft position. When observed from the Earth, using a fix...
Evaluation of tropospheric and ionospheric effects on the geographic localizati...
Celestino, C. C.; Sousa, C. T. [UNESP]; Yamaguti, W.; Kuga, H. K.Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:22:33Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:35:05Z : No. of bitstreams: 1 2-s2.0-34547778984.pdf: 1512661 bytes, checksum: 0cd1de25f3cb5518a7b2c4fed6f12457 (MD5); Made available in DSpace on 2014-05-27T11:22:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-08-15; The Brazilian National Institute f...