Boletim de Ciências Geodésicas

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ADJUSTMENT OF A REGIONAL ALTIMETRIC NETWORK, IN BRAZIL, TO ESTIMATE NORMAL HEIGHTS AND GEOPOTENTIAL NUMBERS

Giuliano Sant’Anna Marotta

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Abstract: In 2018, the Brazilian Institute of Geography and Statistics (IBGE) defined the normal height values and geopotential numbers for the High Precision Altimetric Network (HPAN), creating the need for developing procedures able to adapt works correlated with the

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DOI: https://doi.org/10.1590/s1982-21702020000100002

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PERFORMANCE ANALYSIS OF WEB-BASED RELATIVE AND PRECISE POINT POSITIONING TECHNIQUES WITH DIFFERENT SATELLITE VISIBILITY CONDITIONS

Müge Albayrak

Bahattin Erdoğan

Halil Erkaya

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Abstract: The Global Navigation Satellite System (GNSS) is used for precise positioning applications, such as surveying and geodesy. The aim of the present work is to evaluate the effectiveness of web-based relative positioning (RP) and precise point positioning (PPP)

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DOI: https://doi.org/10.1590/s1982-21702020000100003

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MODELING OF ROOFS FROM POINT CLOUDS USING GENETIC ALGORITHMS

Natália Sabariego

Jorge Antonio Silva Centeno

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Abstract: Building roof extraction has been studied for more than thirty years and it generates models that provide important information for many applications, especially urban planning. The present work aimed to model roofs only from point clouds using genetic algori

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DOI: https://doi.org/10.1590/s1982-21702020000100004

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