@InProceedings{LimaRobShiKuxBri:2017:DePoAt,
               author = "Lima, Sidney Andrade de and Roberto, Leandro and Shiguemori, Elcio 
                         Hideiti and Kux, Hermann Johann Heinrich and Brito, Jorge 
                         Lu{\'{\i}}s Nunes e Silva",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Determina{\c{c}}{\~a}o da posi{\c{c}}{\~a}o e atitudes de VANT 
                         por fotogrametria",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "5392--5399",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "This paper describes the concepts of positioning by photogrammetry 
                         for Unmanned Aerial Vehicle (UAV), in the frame of project 
                         Processing of Images in Real-Time (PITER) developed at the 
                         Institute for Advanced Studies (IEAv). This project intends to 
                         navigate using georeferenced orbital or aerial images compared to 
                         photographs taken during the flight. In order to enable navigation 
                         through images, this technique is very important for the 
                         autonomous flight of a UAV, since usually these aircraft navigate 
                         using the Global Navigation Satellite System (GNSS) associated 
                         with an Inertial Navigation System (INS), however, The GNSS system 
                         is subject to jamming and spoofing interference, which at any time 
                         can be enabled to degrade the accuracy of the system. Due to that, 
                         it is impossible to navigate because the INS is a standalone 
                         system that during navigation time degrades position accuracy, to 
                         accumulate errors in measurements of acceleration and speed of the 
                         UAV. Because of that, the INS has its coordinated corrected from 
                         time to time by GNSS, in this case the navigation system is 
                         dependent on GNSS. However, to perform this replacement it is 
                         necessary to calculate the coordinates and attitudes of the 
                         perspective center of the camera and its respective accuracies, 
                         using control points to appear as well defined in geo-referenced 
                         image, the image taken by the onboard camera and performing the 
                         correlation between respective points in real time, in order to 
                         perform the replacement when the INS coordinate accuracy is 
                         smaller than the coordinate obtained by photogrammetry. In this 
                         context, the replacement of the GNSS allows the autonomous 
                         navigation of UAV.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "59306",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSM4QL",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSM4QL",
           targetfile = "59306.pdf",
                 type = "Cartografia e fotogrametria",
        urlaccessdate = "27 abr. 2024"
}