@Article{MachoPambCorr:2020:AnBaDi,
               author = "Macho, Eduardo P. and Pamboukian, Sergio V. D. and Correia, 
                         Em{\'{\i}}lia",
          affiliation = "{Universidade Presbiteriana Mackenzie} and {Universidade 
                         Presbiteriana Mackenzie} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Geolocal - a new system for geo-referencing: analysis of base 
                         distribution",
              journal = "Journal of Navigation",
                 year = "2020",
               volume = "2020",
                pages = "1--13",
             keywords = "GEOLOCAL, navigation, inverted-gps.",
             abstract = "Geolocal is a new navigation system conceived and patented in 
                         Brazil, whose purpose is to be independent of other global 
                         navigation satellite systems (GNSS). It has an inverted-GNSS 
                         configuration with at least four bases on the ground at known 
                         geodesic position coordinates and a repeater in space. Simulations 
                         were performed to determine the precision of Geolocal using 
                         different quantities and distributions of bases. They showed that 
                         this precision is enhanced when the quantity of bases increases, 
                         as long as the elevation angles of the new bases included are 
                         higher than the average and when the bases are evenly distributed 
                         around the repeater, but mainly when the time delay at the 
                         repeater is known in advance and when the measurement errors that 
                         generate uncertainties are reduced. The position dilution of 
                         precision (PDOP) was also calculated, confirming that precision is 
                         enhanced by the quantity of bases and by their distribution.",
                  doi = "10.1017/S0373463320000466",
                  url = "http://dx.doi.org/10.1017/S0373463320000466",
                 issn = "0373-4633",
                label = "lattes: 1272123236892781 3 MachoPambCorr:2020:AnBaDi",
             language = "en",
           targetfile = "macho_geolocal.pdf",
        urlaccessdate = "28 abr. 2024"
}