Spin-stabilized spacecrafts: analytical attitude propagation using magnetic torques. Garcia, Roberta Veloso; Zanardi, Maria Cecília F.P.S.; Kuga, Hélio Koiti — 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
The impact on geographic location accuracy due to different satellite orbit ephemerides. Celestino, Claudia C.; Sousa, Cristina T.; Yamaguti, Wilson; Kuga, Helio Koiti — 2009 Mathematical Problems in Engineering
Orbital maneuvers using low thrust to place a satellite in a constellation. Gomes, Vivian Martins; De Almeida Prado, Antonio Fernando Bertachini; Kuga, Helio Koiti — 2007 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