Results 1 to 10 of about 1,487,814 (279)

Relativity in the Global Positioning System [PDF]

open access: goldLiving Reviews in Relativity, 2003
The Global Positioning System (GPS) uses accurate, stable atomic clocks in satellites and on the ground to provide world-wide position and time determination.
Ashby Neil
doaj   +6 more sources

Performance Evaluation of Mobile U-Navigation based on GPS/WLAN Hybridization [PDF]

open access: yesarXiv, 2012
This paper present our mobile u-navigation system. This approach utilizes hybridization of wireless local area network and Global Positioning System internal sensor which to receive signal strength from access point and the same time retrieve Global Navigation System Satellite signal.
Bejuri, Wan Mohd Yaakob Wan   +3 more
arxiv   +6 more sources

The Global Positioning System: Global Developments and Opportunities [PDF]

open access: yesResearch Papers in Economics, 2003
International Relations/Trade,
Brandon, James M., Brandon, James M.
openaire   +4 more sources

Wetland vegetation changes in response to climate change and human activities on the Tibetan Plateau during 2000–2015

open access: yesFrontiers in Ecology and Evolution, 2023
The Tibetan Plateau (TP), known as the third pole, is the highest plateau in the world. It has numerous wetlands, which are important ecological security barriers and plays an important role in mitigating global climate change. This paper employed breaks
Yuhan Chen   +11 more
doaj   +1 more source

Real‐time and dynamic time transfer method based on double‐differenced real‐time kinematic mode

open access: yesIET Radar, Sonar & Navigation, 2021
In this study, a real‐time and dynamic time transfer method based on double‐differenced (DD) real‐time kinematic (RTK) mode is proposed. First, the method forms the DD observations of Global Navigation Satellite System (GNSS) to fix the DD ambiguity, and
Rui Tu   +7 more
doaj   +1 more source

Development of Precise Point Positioning Method Using Global Positioning System Measurements [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining an international terrestrial reference frame using global positioning system (GPS) measurements.
Byung-Kyu Choi   +4 more
doaj   +1 more source

A bagging tree-based pseudorange correction algorithm for global navigation satellite system positioning in foliage canyons

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Global navigation satellite system is indispensable to provide positioning, navigation, and timing information for pedestrians and vehicles in location-based services.
Fan Qin   +3 more
doaj   +1 more source

Improving the Accuracy of Static Relative GPS Positioning using Genetic Algorithm [PDF]

open access: yesEngineering and Technology Journal, 2010
Over the years, the Global Positioning System (GPS) has evolved to become an important navigational and positional system and is widely used across the world.
Farazdak Rafeek Yasien
doaj   +1 more source

Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements

open access: yesRemote Sensing, 2021
In navigation, the Twice the Distance Root Mean Square (2DRMS) is commonly used as a position accuracy measure. Its determination, based on statistical methods, assumes that the position errors are normally distributed and are often not reflected in ...
Mariusz Specht
doaj   +1 more source

Current State and Prospects of Satellite Navigation Applications in Transport

open access: yesPromet (Zagreb), 2007
The article describes new possibilities of how to use globalsatellite navigation system Galileo, which is made by the EuropeanUnion and its European Space Agency ESA.
Alica Kalašova, Libor Palička
doaj   +1 more source

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