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Master's Dissertation
DOI
10.11606/D.18.2000.tde-24052006-101143
Document
Author
Full name
Ana Paula Camargo Larocca
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2000
Supervisor
Committee
Segantine, Paulo Cesar Lima (President)
Cintra, Jorge Pimentel
Schaal, Ricardo Ernesto
Title in Portuguese
Análise de estratégias para processamento de redes geodésicas com o sistema de posicionamento global - GPS
Keywords in Portuguese
efemérides
estratégias de processamentos
geodésia
GPS
processamento de observáveis
redes geodésicas
Abstract in Portuguese
O presente trabalho consiste de apresentação de metodologia para estudo, elaboração e análise de estratégias para processamento de observáveis GPS, para a constituição de redes geodésicas. No desenvolvimento deste trabalho foram utilizados os dados observados da rede geodésica do Estado de São Paulo, concluída em 1994. Esta rede é constituída por vinte e quatro pontos distribuídos pelo estado, mais o vértice CHUA, que é o vértice fundamental da triangulação do Sistema Geodésico Brasileiro. Através das estratégias elaboradas são analisados diversos fatores de importância relevante nos processamentos dos dados GPS, como: influência de dados meteorológicos no processamento de linhas bases longas; resultados de processamentos com efemérides transmitidas e precisas; resultados de processamentos com linhas bases de comprimentos homogêneos e menores ou igual a 150 km; resultados de processamentos considerando apenas duas horas e trinta minutos do tempo total de duração das sessões de observação. Os resultados dos ajustamentos destas estratégias são comparados entre si e se apresenta, então, análises e conclusões sobre a influência dos fatores analisados
Title in English
Analyses of strategies for processing of geodetic networks with the global positioning system - GPS
Keywords in English
data processing
ephemeris
geodesy
geodetic network
GPS
strategies of processing
Abstract in English
The present work consists in the presentation of a methodology for study, elaboration and analyses of strategies to process GPS observables for geodetic networks. In the development of this work, GPS data of the geodetic network of the State of Sao Paulo, concluded in 1994, were used. This network is composed twenty-four points scattered in the State, plus the vertex CHUA, that is the fundamental point of the triangulation of the brazilian geodesy system. Through the strategies elaborated, several factors of main importance for data GPS processing, are analyzed, such as: the influence of meteorological data processing of long baselines; the results of data processing with broadcast and precise ephemeris; the results of data processing with baselines of homogeneous lengths and smaller than or equal to 150 km; the results of data processing considering only two hours and thirty minutes of the total time of duration of the observation sessions. The results of the adjustment of these strategies are compared to each other, followed by analyses and conclusions about the influence of these factors on data processing
 
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Publishing Date
2006-05-26
 
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