Avaliação dos desvios horizontais lineares em levantamento topográfico utilizando diferentes receptores GPS.

Abstract

The Global positioning system in the area of Agrarian Sciences has been used for topographical surveys, land use mapping, and it has being of extreme importance for agriculture of precision, surveying and geographic localization of points for collecting data in scientific works. The constant evolution of the equipments and softwares in the topography area propitiated a considerable profit in productivity and quality in elaboration maps that will serve for projects of Engineering. The main objective of this work was to analyze the data collected from four different equipments of great use in the national market, Total Station, geodetic GPS, topographical GPS and navigation GPS. The navigation GPS for measurements points was less imprecise than Geodetic GPS e Topographic GPS. The use of Geodetic and Topographic GPS can be considered acceptable.