@InProceedings{MoreiraLope:2007:DeAtCo,
               author = "Moreira, Marcelo de Lima Bastos and Lopes, Oliveira e Souza 
                         Marcelo",
                title = "Design of an Attitude Control System for the Multi-Mission 
                         Platform and its Migration to a Real Time Operating System",
            booktitle = "Proceedings...",
                 year = "2007",
         organization = "Congresso SAE Brasil 2007.",
             abstract = "This paper presents the first of four parts of the academic design 
                         of an Attitude Control System (ACS) for the Multi-Mission Platform 
                         (MMP) and its migration to a Real Time Operating System. The MMP 
                         is a three axis stabilized artificial satellite now under 
                         development at the National Institute for Space Research (INPE). 
                         Such design applied some software engineering concepts as: 
                         1)visual modeling; 2)automatic code generation; 3)automatic code 
                         migration; 4)soft real time simulation; and 5)hard real time 
                         simulation. A block diagram based modeling and a virtual time 
                         simulation of the MMP ACS in its nominal operational mode were 
                         built in the MatrixX 7.1 environment satisfying the three axis 
                         pointing and stabilization requirements. After that, its AutoCode 
                         module was used to generate C ANSI code representing the block 
                         diagram model. Time characteristics were added to the ACS 
                         generated code to make it the real time control software of MMP 
                         nominal operational mode. Four operating systems were used for 
                         code migration: 1)Windows 2000 (first part); 2)Mandrake Linux 10.1 
                         (second part); 3)RedHawk Linux 2.1 (third part); and 4)RTEMS 4.6.2 
                         (fourth part). Software migration characteristics were described 
                         for each of these four computational environments. The results 
                         shown the advantages of using those software engineering concepts 
                         in the MMP ACS development. They also show excellent agreement 
                         between the virtual time simulation results and those obtained 
                         with Windows 2000 simulation.",
                  doi = "10.4271/2007-01-2857",
                  url = "http://dx.doi.org/10.4271/2007-01-2857",
                label = "self-archiving-INPE-MCTIC-GOV-BR",
             language = "en",
           targetfile = "moreira_design.pdf",
                  url = "http://papers.sae.org/2007-01-2857",
        urlaccessdate = "02 maio 2024"
}