GPS satellites orbits: resonance. Damasceno Ferreira, Luiz Danilo; Vilhena de Moraes, Rodolpho — 2009 Mathematical Problems in Engineering
A discussion related to orbit determination using nonlinear sigma point Kalman filter. Pardal, Paula Cristiane Pinto Mesquita; Kuga, Helio Koiti; Vilhena de Moraes, Rodolpho — 2009 Mathematical Problems in Engineering
Simulations under ideal and nonideal conditions for characterization of a passive Doppler geographical location system using extension of data reception network. de Sousa, Cristina Tobler; Vilhena de Moraes, Rodolpho; Kuga, Hélio Koiti — 2009 Mathematical Problems in Engineering
Simple orbit determination using GPS based on a least-squares algorithm employing sequential Givens rotations. Vilhena de Moraes, Rodolpho; da Silva, Aurea Aparecida; Kuga, Helio Koiti — 2007 Mathematical Problems in Engineering
Nonsphericity of the Moon and near Sun-synchronous polar lunar orbits. Carvalho, Jean Paulo dos Santos; Vilhena de Moraes, Rodolpho; Prado, Antônio Fernando Bertachini de Almeida — 2009 Mathematical Problems in Engineering