Results 31 to 40 of about 149 (108)
A REGRESSION STUDY ON RELATIVE GPS ACCURACY FOR DIFFERENT VARIABLES
, 2011 We know that position accuracies from relative and static Global Positioning System (GPS) measurements are degraded by a variety of physical, hardware and software effects.
T. Ocalan +3 more
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, 2018 O constante avanço do Global Navigation Satellite System (GNSS) possibilita aos seus usuários ao redor do mundo a utilização de seus produtos para os mais diversos fins.
Galhardo, Pablo Henrique Souza
core +1 more source
GPS for environmental applications: Accuracy and precision of locational data
, 1994 In this study, we estimated the accuracy and precision of a simple GPS receiver and community base station system. We found that, under ideal conditions, 95 percent of the locations we derived were within 73 m of true without differential correction and ...
Michaud, J. +3 more
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, 2014 The precision of Global Positioning System (GPS) observables depends on the satellite geometry, represented by the Dilution of Precision (DOP) values, and range of errors caused by signal strength, ionospheric delay, tropospheric delay, and satellite ...
Bayrak, Temel +2 more
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Mapping the underworld : integrated GNSS based positioning and GIS based GNSS simulation [PDF]
, 2008 The United Kingdom utility services are facing the challenge of "mapping the underworld" over four million kilometres of buried pipes and cables (a combination of water, sewage, gas, electricity and drainage).
Taha, Ahmad Adnan Mohammad
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Obtenção do parâmetro PCO de antenas GNSS por meio de sistemas baseados em regras Fuzzy [PDF]
, 2015 Orientadora : Profª. Drª. Cláudia Pereira KruegerCo-orientadora : Profª. Drª. Rosana Sueli da Motta JafeliceTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências da Terra, Programa de Pós-Graduação em Ciências Geodésicas. Defesa: Curitiba,
Nardez, Nassau de Nogueira
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Dilution-of-Precision-Based Lunar Surface Navigation System Analysis Utilizing Earth-Based Assets
, 2007 The NASA Vision for Space Exploration is focused on the return of astronauts to the Moon. Although navigation systems have already been proven in the Apollo missions to the Moon, the current exploration campaign will involve more extensive and extended ...
Welch, Bryan W. +2 more
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Dilution-of-Precision-Based Lunar Surface Navigation System Analysis Utilizing Lunar Orbiters
, 2007 The NASA Vision for Space Exploration is focused on the return of astronauts to the Moon. Although navigation systems have already been proven in the Apollo missions to the Moon, the current exploration campaign will involve more extensive and extended ...
Welch, Bryan W. +2 more
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RRS Discovery Cruise 351, 10-28 May 2010. The Extended Ellett Line 2010. [PDF]
, 2010 The Extended Ellett Line is a full-depth hydrographic section between Iceland, 60°N 20°W, Rockall and Scotland. The original Ellett Line across the Rockall Trough was first occupied in 1975 when measurements were attempted four times a year.
Read, J.F.
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The Effects of Peripheral Canopy on DGPS Performance on Forest Roads
, 2001 The purpose of this study was to evaluate differential global positioning system (DGPS) positional accuracy on Irish forest roads with typical peripheral canopies.
Martin, Audrey A. +3 more
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