8 articles in this issue
Amanda Pereira Antunes,Luciene Stamato Delazari
People tend to lose their sense of direction in closed environments and the role of indoor maps is to assist the user in navigating in these spaces, through understanding the environment, identifying reference points or positioning. Among the several form... see more
Nathalia Rose Silva da Purificação,Andrea Flávia Tenório Carneiro,Rui Pedro Julião
This article proposes the modelling and implementation of an integrated system for Brazilian cadastres, based on the standardized model of land administration described in the ISO 19152:2012 LADM. The model was developed from the identification of the ess... see more
Gustavo Bento Mansur,Luiz Danilo Damasceno Ferreira
The signal transmission and position quality obtained by GNSS positioning directly depends on the time control. The atomic clocks aboard the satellites are responsible for this control. In this research, the satellites clock errors of GPS are studied, usi... see more
Müge Albayrak,Kerem Halicioglu,Mustafa Tevfik Özlüdemir,Burak Basoglu,Rasim Deniz,Allison RB Tyler,Mohammed Mohseni Aref
The Digital Zenith Camera Systems (DZCSs) are dedicated astrogeodetic instruments used to obtain highly accurate astrogeodetic vertical deflection (VD) data. The first Turkish DZCS, the Astrogeodetic Camera System (ACSYS), was developed in Istanbul, Turke... see more
Italo Oliveira Ferreira,Afonso de Paula dos Santos,Júlio César de Oliveira,Nilcilene das Graças Medeiros,Paulo César Emiliano
The amount of data produced in an echo sounder has grown exponentially with scanning systems such as multibeam echo sounders and interferometric sonars, providing a considerable improvement in the submerged relief representation, especially to detect haza... see more
Cláudia Cristina Baptista Ramos Naizer,David Souza Rodrigues,Jorge Ubirajara Pedreira Junior,Cira Souza Pitombo
Among the exploratory spatial data analysis tools, there are indicators of spatial association, which measure the degree of spatial dependence of analysed data and can be applied to quantitative data. Another procedure available is geostatistics, which is... see more
Alex Gois Orlandi,Osmar Abílio de Carvalho Júnior,Renato Fontes Guimarães,Edilson de Souza Bias,Douglas Corbari Corrêa,Roberto Arnaldo Trancoso Gomes
This research aims to determine the vertical accuracy of the Interferometric Digital Elevation Model (DEM) obtained from the processed Shuttle Radar Topographic Mission (SRTM) data. The research compared the SRTM-GL1 (Shuttle Radar Topographic Mission-Glo... see more
Erly Caldas de Lima,Rodrigo de Sousa Pissardini,Rafael Henrique de Oliveira,Edvaldo Simões da Fonseca Junior,Jorge Pimentel Cintra
This study compares in quantitative terms two methods of differential corrections to GPS positioning from the codebased pseudoranges. The differential method calculated from the coordinates (Latitude, Longitude and Altitude), called Position-Domain DGPS, ... see more