Evaluación de Técnicas Ntrip y Herramientas Gnss -Vant y Base Rtk en los levantamientos topográficos para el catastro multipropósito

Abstract

The main objective of this document is to evaluate NTRIP techniques and GNSS-VANT with RTK-based tools that help in the accuracy and optimization of resources in topographic surveys for multipurpose cadastral. The methodology used is to compare the results between NTRIP techniques and photogrammetric flights focused on the identification of the territory, seeking to identify which one is more efficient. The study area was located at south of the municipality of Guacarí, Valle del Cauca, the chosen area presents permanent updates due to the fact that it is part of the expansion zone of the municipality where a partial plan are being carried out. One of the relevant results is achieved by comparing the accuracies between the NTRIP technique and the photogrammetric flight. The execution time presents a decrease with the NTRIP technique, it was 5 hours while with the photogrammetric flight it is possible to capture the same area in a period of approx. 30 minutes achieving a difference between both precisions around 0.25m.