Análisis de la precisión brindada por la asistencia de GPS a dispositivos móviles y GPS para la georreferenciación de un sector perteneciente a COPROBICH.

Abstract

This research work was aimed to perform an analysis on the precision provided by the Assisted Global Positioning Service (AGPS) to mobile devices and Global Positioning System (GPS) for the georeferencing of an area that belongs to Bio Taita Chimborazo Producers and Traders Corporation (COPROBICH). This analysis was carried out by collecting data from different fields using three error correction techniques under similar conditions. The stages had different shapes and sizes located in urban and rural sectors in Riobamba city such as Penipe, Colta, and Chillanes. Points were defined In these areas where geographic information was collected to take measurements by using these techniques: Static mode, Data Transport Network in Format proposed by the Radio Technical Commission for Maritime Services (RTCM) through the Internet Protocol ( NTRIP), and AGPS obtaining positioning coordinates, horizontal as well as vertical errors. Subsequently, a comparative, graphical, and statistical analysis was developed, which allowed understanding the precision achieved in the measurements generated by each technique. Subsequently, a comparative, graphical, and statistical analysis was developed, allowing the understanding of the precision achieved in the measurements generated by each technique. Consequently, it determines which technique showsthe best conditions for its use in georeferencing exercises both within the Corporation and outside. From this analysis, it has been concluded that the most optimal technique was NTRIP since it delivered better results reducing the average horizontal error by 99.17% and the vertical error by 98.85%. This technical precision is more significant than the others; therefore, its use is recommended in parcel georeferencing.