Results 11 to 20 of about 549,143 (317)
Geodesy and Cartography, 2018 This paper provides analyses of the accuracy and convergence time of the PPP method using GPS systems and different IGS products. The official IGS products: Final, Rapid and Ultra Rapid as well as MGEX products calculated by the CODE analysis centres were used.
Damian Kiliszek +2 more
semanticscholar +4 more sources
On the Convergence of Ionospheric Constrained Precise Point Positioning (IC-PPP) Based on Undifferential Uncombined Raw GNSS Observations [PDF]
Sensors, 2013 Precise Point Positioning (PPP) has become a very hot topic in GNSS research and applications. However, it usually takes about several tens of minutes in order to obtain positions with better than 10 cm accuracy.
Hongping Zhang +6 more
doaj +9 more sources
Assessing the Performance of Precise Point Positioning (PPP) with the Fully Serviceable Multi-GNSS Constellations: GPS, BDS-3, and Galileo [PDF]
Remote Sensing, 2023 Nowadays, both BDS-3 and Galileo can provide global positioning and navigation services. This contribution carried out a comprehensive analysis and validation of positioning performance in terms of positioning accuracy (RMS) and convergence time, which ...
Zunyao Hou, Feng Zhou
openalex +2 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
+4 more sources
Journal of Applied Geodesy, 2017 Abstract This paper presents an investigation into the performance of real-time Global Navigation Satellite Systems (GNSS) Precise Point Positioning (PPP) in New Zealand. The motivation of the research is to evaluate the feasibility of using PPP technique and a satellite based augmentation system such as the Japanese Quasi-Zenith ...
Ken Harima +3 more
semanticscholar +5 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
openalex +3 more sources
Towards an Accurate Real-Time Digital Elevation Model Using Various GNSS Techniques [PDF]
SensorsThe objective of our research is to produce a digital elevation model (DEM) in a real-time domain. For this purpose, GNSS measurements are obtained from a kinematic trajectory in a clear location in New Aswan City, Egypt.
Mohamed Abdelazeem +3 more
doaj +2 more sources
Consolidation and assessment of a technique to provide fast and precise point positioning (Fast-PPP) [PDF]
, 2016 The research of this paper-based dissertation is focused on the Fast Precise Point Positioning (Fast-PPP) technique. The novelty relies on using an accurate ionosphere model, in combination with the standard precise satellite clock and orbit products, to reduce the convergence time of state-of-the-art high-accuracy navigation techniques from ...
Adrià Rovira‐Garcia
openalex +5 more sources
Towards PPP-RTK: Ambiguity resolution in real-time precise point positioning [PDF]
Advances in Space Research, 2010 Abstract Integer ambiguity resolution at a single station can be achieved by introducing predetermined uncalibrated phase delays (UPDs) into the float ambiguity estimates of precise point positioning (PPP). This integer resolution technique has the potential of leading to a PPP-RTK (real-time kinematic) model where PPP provides rapid convergence to a
Jianghui Geng +3 more
openalex +4 more sources
High rate 30 seconds vs clock interpolation in Precise Point Positioning (PPP)
Geodetski vestnik, 2016 The development of GNSS technology (Global Navigation Satellite Systems), including GPS technology (Global Positioning System), and the increase of accuracy and precision of the International GNSS Service (IGS) products, make Precise Point Positioning (PPP) technique more and more attractive.
Sorin Nistor, Aurelian Stelian Buda
+5 more sources