@InProceedings{MartinsNeto:1994:SaAtCo,
               author = "Martins Neto, Antonio Felix",
                title = "Satellite attitude control using nonlinear techniques",
            booktitle = "Resumos...",
                 year = "1994",
                pages = "34",
         organization = "C{\'o}loquio Brasileiro de Din{\^a}mica Orbital, 7.",
             keywords = "ENGENHARIA E TECNOLOGIA ESPACIAL.",
             abstract = "The purpose of this paper is to show how to use nonlinear control 
                         techniques and adaptive control to design attitude control 
                         algorithms for satellites. Basically the satellite is modelled as 
                         a rigid body: lt has as control devices three reaction wheels, one 
                         for each axis; and the purpose of the controller is, to align the 
                         satellite with the orbital reference frame. The satellite is 
                         subjected lo the gravitational torque and a disturbance torque 
                         (e.g.. a drag torque or a radiation torque). Whose model is known, 
                         except for some parameters. Conditions for equilibrium under these 
                         circunstances are discussed and some possibilities for the 
                         satellite alignment are presented with their advantages and 
                         drawbacks.The controller is designed by suggesting a Liapunov 
                         function, constructed by making use of physical and mathematical 
                         considerations, and imposing conditions for stability. The same 
                         procedure can be applied to take into consideration the lack of 
                         knowledge about some satellite dynamical parameters and or about 
                         the disturbance model. The algorithms so obtained are robust and 
                         can also be extended to satellites with flexible parts.",
  conference-location = "Santos, BR",
      conference-year = "21-25 nov. 1994",
                label = "11061",
             language = "en",
           targetfile = "Satellite attitude control using nonlinear techniques.pdf",
        urlaccessdate = "25 abr. 2024"
}