Results 11 to 20 of about 440,435 (279)
GPS/GLONASS Combined Precise Point Positioning with Receiver Clock Modeling [PDF]
Sensors, 2015 Research has demonstrated that receiver clock modeling can reduce the correlation coefficients among the parameters of receiver clock bias, station height and zenith tropospheric delay.
Fuhong Wang, Xinghan Chen, Fei Guo
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Modeling and Assessment of GPS/BDS Combined Precise Point Positioning [PDF]
Sensors, 2016 Precise Point Positioning (PPP) technique enables stand-alone receivers to obtain cm-level positioning accuracy. Observations from multi-GNSS systems can augment users with improved positioning accuracy, reliability and availability.
Junping Chen +5 more
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Precise Point Positioning Using World’s First Dual-Frequency GPS/GALILEO Smartphone [PDF]
Sensors, 2019 The release of the world’s first dual-frequency GPS/Galileo smartphone, Xiaomi mi 8, in 2018 provides an opportunity for high-precision positioning using ultra low-cost sensors. In this research, the GNSS precise point positioning (PPP) accuracy of
Abdelsatar Elmezayen, Ahmed El-Rabbany
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Enhanced Precise Point Positioning for GNSS Users
IEEE Transactions on Geoscience and Remote Sensing, 2012 This paper summarizes the main results obtained during the development of an Enhanced Precise Point Positioning (EPPP) Global Navigation Satellite Systems multifrequency user algorithm. The main innovations include the application of precise ionospheric corrections to facilitate the resolution of undifferenced carrier phase ambiguities, ambiguity ...
Juan Zornoza, José Miguel +11 more
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Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections [PDF]
Sensors, 2016 Real-time single frequency precise point positioning (PPP) is a promising technique for high-precision navigation with sub-meter or even centimeter-level accuracy because of its convenience and low cost. The navigation performance of single frequency PPP
Liang Li +5 more
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GPS precise point positioning for UAV photogrammetry [PDF]
The Photogrammetric Record, 2018 AbstractThe use of Global Positioning System (GPS) precise point positioning (PPP) on a fixed‐wing unmanned aerial vehicle (UAV) is demonstrated for photogrammetric mapping at accuracies of centimetres in planimetry and about a decimetre in height, from flights of 25 to 30 minutes in duration.
Grayson B, Penna NT, Mills JP, Grant DS
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Combined GPS/GLONASS Precise Point Positioning with Fixed GPS Ambiguities [PDF]
Sensors, 2014 Precise point positioning (PPP) technology is mostly implemented with an ambiguity-float solution. Its performance may be further improved by performing ambiguity-fixed resolution.
Lin Pan +3 more
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Performance Analysis of Several GPS/Galileo Precise Point Positioning Models [PDF]
Sensors, 2015 This paper examines the performance of several precise point positioning (PPP) models, which combine dual-frequency GPS/Galileo observations in the un-differenced and between-satellite single-difference (BSSD) modes.
Akram Afifi, Ahmed El-Rabbany
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Compact, Low-cost GNSS Modules for Precise Point Positioning [PDF]
E3S Web of Conferences, 2021 Global Navigation Satellite System (GNSS) uses Precise Point Positioning (PPP) technique to find out accurate geolocation information of any point. Generally, costly, geodetic GNSS receivers are used for PPP.
Bose Anindya +3 more
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Using GNSS Observations for Tropospheric Delay Prediction Using Artificial Intelligence [PDF]
Port Said Engineering Research Journal, 2023 GNSS technology holds significant importance across wide applications, ranging from mapping, surveying, and precise timekeeping to ship navigation. Its operational principle hinges on the accurate measurement of signal travel time, which is crucial for ...
Ahmed Sedeek
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