PAIXÃO, L. L.; http://lattes.cnpq.br/7163167819952375; PAIXÃO, Lucas Lacerda.
Résumé:
Positioning systems are increasingly used in military and civil applications. There
are several limitations and source of errors that compromise the precision and
accuracy of positions. In this work these issues are addressed in a theoretical
discussion about global navigation systems, specially, the NAVSTAR GPS. Based on
that scenario, a differential GPS solution is proposed and it consists of an open source
library called RTKLIB jointly with a u-blox EVK-6T receiver. To evaluate that platform
on real conditions, a series of experiments and observations were performed, in
distinct environments, at Leuven – Belgium in a partnership with Essensium company
that provided the necessary infrastructure. By the end of the tests, factors as precision
of measurements, ambiguity resolution, response and converge time, baseline
distance, as well, were analysed. Depending on the conditions, precision in the level
of centimeters were achieved, when simple GPS solutions result in deviation of meters.
