Analysing the Zenith Tropospheric Delay Estimates in On-line Precise Point Positioning (PPP) Services and PPP Software Packages. [PDF]
Sensors (Basel), 2018 As Global Navigation Satellite System (GNSS) signals travel through the troposphere, a tropospheric delay occurs due to a change in the refractive index of the medium.
Mendez Astudillo J +3 more
europepmc +15 more sources
The Implementation of Precise Point Positioning (PPP): A Comprehensive Review [PDF]
Sensors, 2023 High-precision positioning from Global Navigation Satellite Systems (GNSS) has garnered increased interest due to growing demand in various applications, like autonomous car navigation and precision agriculture.
Mohamed Elsheikh +3 more
doaj +5 more sources
GPS AND GLONASS COMBINED STATIC PRECISE POINT POSITIONING (PPP) [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 With the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs), satellite navigation is undergoing drastic changes. Presently, more than 70 satellites are already available and nearly 120 more satellites will be available ...
D. Pandey +3 more
doaj +7 more sources
ENHANCEMENT POSITIONING PERFORMANCE USING MODIFIED PRECISE POINT POSITIONING (PPP) SOFTWARE [PDF]
Journal of Al-Azhar University Engineering Sector, 2023 The lack of specialized processing programs for the precise point positioning PPP technique led to not providing optimal solutions for the results. Therefore, the research aims to improve an open-source MATLAB software for processing all available data ...
Shimaa Abd El Fttah +3 more
semanticscholar +3 more sources
Integrity monitoring of fixed ambiguity Precise Point Positioning (PPP) solutions [PDF]
Geo-spatial Information Science, 2013 Traditional positioning methods, such as conventional Real Time Kinematic (cRTK) rely upon local reference networks to enable users to achieve high-accuracy positioning. The need for such relatively dense networks has significant cost implications. Precise Point Positioning (PPP) on the other hand is a positioning method capable of centimeter-level ...
Altti Jokinen +6 more
semanticscholar +3 more sources
Real-Time Precise Point Positioning during Outages of the PPP-B2b Service [PDF]
Remote Sensing, 2023 The precise point positioning service on B2b signal (PPP-B2b) is a real-time decimeter-level positioning service provided by the BeiDou-3 Global Navigation Satellite System (BDS-3). The service provides users with high-precision orbit and clock corrections through geostationary orbit (GEO) satellites, which means that the PPP-B2b service would be ...
Yufei Chen +6 more
semanticscholar +4 more sources
Improving precise point positioning (PPP) performance with best integer equivariant (BIE) estimator [PDF]
GPS Solutions, 2023 Abstract Precise point positioning (PPP) technology is capable of providing global high-precision positioning services, but its main application bottleneck is the long convergence time. Accurate and reliable carrier phase ambiguity resolution (AR) is a primary approach to accelerate PPP convergence and improve its accuracy.
Yuze Yang, Feng Zhou, Shuli Song
semanticscholar +3 more sources
A Comparative Study of Precise Point Positioning (PPP) Accuracy Using Online Services [PDF]
Reports on Geodesy and Geoinformatics, 2016 Precise Point Positioning (PPP) is a technique used to determine the position of receiver antenna without communication with the reference station. It may be an alternative solution to differential measurements, where maintaining a connection with a ...
Malinowski Marcin, Kwiecień Janusz
doaj +3 more sources
ECEF Position Accuracy and Reliability: Inertial Navigation with GNSS Precise Point Positioning (PPP) [PDF]
, 2020 This report presents experimental results for a moving platform using GPS PPP data for state estimation. Results from two PPP GPS state estimation approaches are presented: point-wise least squares (LS) and aided inertial navigation (INS). The point-wise
Farzana Rahman +2 more
core +4 more sources
The convergence mechanism of Low Earth Orbit enhanced GNSS (LeGNSS) Precise Point Positioning (PPP) [PDF]
Geo-Spatial Information Science, 2023 The recruitment of the Low Earth Orbit (LEO) constellation is recognized as an effective way to augment Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) in the near future.
Yanning Zheng, Haibo Ge, Bofeng Li
openalex +2 more sources