Análisis e implementación de las técnicas de corrección GPS para evaluar la precisión de posicionamiento en dispositivos rover aéreo vs rover terrestre.

Abstract

The main objective of this curricular integration work was to carry out an analysis and comparison of the positioning precision provided by the correction techniques of the Global Positioning System (GPS) and the Inertial Navigation System (INS) for the georeferencing of different sectors into the Chimborazo province. Data collection was carried out with two GNSS devices under equal conditions in different scenarios, which included land of various shapes and sizes in urban and rural sectors that are located in cantons of Riobamba, Guano and Penipe. In each of these were defined the points where the geographic information was collected, in order take the measurements with the Mavic 2 Pro device and the Polaris S100 device obtaining its position and the horizontal and vertical errors of each point. These data were used for a subsequent analysis in a comparative, graphical and statistical way to define which of the two correction techniques and which device is more precise to carry out surveys of georeferenced information. The results achieved with the post-processing correction technique in the aerial rover was 0.83 meters while the real-time correction technique in the ground rover reached a millimeter precision of 0.006 m. It is concluded that the Polaris S100 device using the real-time DGPS technique through NTRIP is much more precise to perform the survey of georeferenced information, avoiding post-processing and optimizing the positioning error correction time compared to the Pro Mavic 2 device which had lower positioning accuracy. It is recommended to attach in the device the Pro Mavic 2 Pro a system based on the Real Time Kinematic (RTK) motion correction technique in order to improve positioning accuracy.