@InProceedings{GalskiOrla:2011:AuOrCo,
               author = "Galski, Roberto Luiz and Orlando, Valcir",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Autonomous Orbit Control Procedure, Using a Simplified GPS 
                         Navigator and a New Longitude Phase Drift Prediction Method, 
                         Applied to the CBERS Satellite",
            booktitle = "Proceedings...",
                 year = "2011",
         organization = "International Symposium on Space Flight Dynamics, 22. (ISSFD).",
            publisher = "INPE",
              address = "Sao Jos{\'e} dos Campos",
             keywords = "autonomous orbit control, GPS, autonomous navigator, Kalman 
                         Filter.",
             abstract = "This paper presents a performance analysis of an autonomous orbit 
                         control procedure using a simplified GPS navigator [1], where the 
                         ground track drift of the satellite is estimated onboard with help 
                         of a recently developed approach [2] that directly calculates the 
                         acceleration of the orbit ground track as a function of the solar 
                         and geomagnetic activity. The simplified navigation procedure 
                         improves the coarse geometric navigation solution provided by GPS 
                         receivers. This is done by using the GPS solutions as inputs 
                         (observations) for a real time Kalman filtering process. The 
                         orbital state vector is extended and includes the systematic error 
                         imposed to the GPS geometric solution by the changes in the set of 
                         satellites which are visible to the receiver. The simplified 
                         navigator has reduced computational cost, allowing it to be 
                         carried and executed on-board of spacecrafts. The improved outputs 
                         of this process are used in the computational implementation of an 
                         autonomous control system for the ground track drift of the 
                         spacecraft orbit. The behavior of the system is evaluated by means 
                         of orbit simulations using a CBERS-like phased remote sensing 
                         satellite. The aim of the paper is to verify if the coupled system 
                         is able to correctly calculate and perform variable size 
                         semi-major axis orbit increment maneuvers in order to keep the 
                         satellite ground track within its allowed limits (±4km).",
  conference-location = "S{\~a}o Jos{\'e} dos Campos",
      conference-year = "28 Feb.– 4 Mar. 2011",
                label = "lattes: 8427569272485063 1 GalskiOrla:2011:AuOrCo",
             language = "en",
         organisation = "INPE; AEB",
                  ibi = "J8LNKAN8RW/39RSBA8",
                  url = "http://urlib.net/ibi/J8LNKAN8RW/39RSBA8",
           targetfile = "S1_P3_ISSFD22_PF_064.pdf",
        urlaccessdate = "21 maio 2024"
}