Leveling With Gps
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. PHYSICAL CONNECTION BETWEEN BVRF SEGMENTS BASED ON LEVELING ASSOCIATED WITH GRAVIMETRY
Resumo Considerando os esforços no estabelecimento de Sistemas de Referência Globais vinculados ao geopotencial, buscam-se novas alternativas para abordar os problemas apresentados nas redes verticais clássicas nacionais. A Rede Vertical de Referência do Brasil (RVRB) foi materializada em dois segmentos distintos, com origens independentes (marégrafos d
Bol. Ciênc. Geod.. Publicado em: 18/04/2019
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2. AVALIAÇÃO DA EFICIÊNCIA OPERACIONAL NA OPERAÇÃO DE COLHEITA MECANIZADA EM LAVOURAS DE ARROZ IRRIGADO / EVALUATION OF OPERATING EFFICIENCIES IN HARVESTING RICE FIELDS
The objective of this thesis was evaluate the efficiencies of the harvesting operation in rice fields, located in the region of Depressão Central do Rio Grande do Sul. As specific objectives, this study sought to determine and evaluate the following efficiencies: field, time, field pattern and cutter bar; to verify if there is difference between the areas w
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2011
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3. TERRAIN ELEVATION MODELLING WITH CONVENTIONAL ALTIMETRY AND GPS / MODELAGEM DA ELEVAÇÃO DO TERRENO COM ALTIMETRIA CONVENCIONAL E GPS
The Global Positioning System has all heights referred to the ellipsoid. However, for engineering applications it is necessary to have heights related to the earth gravitational field, which have physical meaning. In order to determine the orthometric height from the geoidal height, which is given at the GPS, it is necessary to know the geoidal undulation. T
Publicado em: 2006
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4. DeterminaÃÃo controlada de deslocamentos verticais de pontos com linha de base GPS de 425 metros de extensÃo / Controlled determination of vertical displacements of points with GPS base line of 425 meters of extension
Dentre as tÃcnicas de posicionamento altimÃtricos utilizados na geodÃsia, o nivelamento geomÃtrico de precisÃo e o posicionamento GPS tÃm sido largamente utilizados. O posicionamento altimÃtrico GPS exige a aplicaÃÃo de tÃcnicas refinadas de observaÃÃo e processamento dos dados, que na maioria dos casos, sÃo pouco acessÃveis à maior parte dos
Publicado em: 2005
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5. Performance assessment of gps receivers in land leveling. / Avaliação do desempenho de receptores GPS em levantamentos altimétricos, para fim de sistematização de terras.
The constant evolution of the equipments and softwares in the surveing field has brought a lot of gain in productivity and quality to make maps that are the foundation for the engineering projects. The purpose of this work is the comparative analyses of the data obtained by 3 different equipments that are very used in the national market - the Total Station,
Publicado em: 2003
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6. Utilização de redes neurais na determinação de modelos geoidais / Using artificial neural network to obtain geoid models.
Applying data from EGM96 geopotential model, gravimetric, GPS and geometric leveling data and using spherical harmonics and FFT as techniques of geoidal determination, this thesis has the goal to find a fast alternative tool to define a geoidal undulation model considering precision and a small effort to estimate important parameters to obtain the mentioned
Publicado em: 2003
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7. Estudo e análise de poligonais segundo a NBR 13.133 e o sistema de posicionamento global. / Study and analyse of transverse with NR 13.133 and the global position system.
The development of new tecnologies brought deep modifications in the instruments used for surveying in the measuration. Many equipaments and techinics were substituted and others became obsolete. The new options and technics of measuring always bring dificulties in the link among surveying nowadays it is used Total Stations and GPS (global positioning system
Publicado em: 1999