3 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...
Attitude stability analyses for small artificial satellites
Silva, W. R.; Zanardi, M. C. [UNESP]; Formiga, J. K.S.; Cabette, R. E.S.; Stuchi, T. J.Made available in DSpace on 2022-04-29T07:12:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01; The objective of this paper is to analyze the stability of the rotational motion of a symmetrical spacecraft, in a circular orbit. The equilibrium points and regions of stability are established when components of the gravity gradient torque acting on the spacecraft are included in the equations of rota...
Drivers of Spatial Variation in the Role of Ants as Secondary Seed Dispersers
Bottcher, C.; Peixoto, P. E. C.; Silva, W. R.; Pizo, M. A. [UNESP]Made available in DSpace on 2018-11-26T16:56:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-08-01; FAEPEX/UNICAMP; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); The spatial variation in the outcome of the interaction between secondary dispersers and seeds is superimposed upon the variation produced by primary...