Results 31 to 40 of about 4,073 (231)

Impact of GPS/BDS Satellite Attitude Quaternions on Precise Point Positioning with Ambiguity Resolution

open access: yesRemote Sensing, 2021
Precise point positioning with ambiguity resolution (PPP-AR) based on multiple global navigation satellite system (multi-GNSS) constellations is an important high-precision positioning tool.
Songfeng Yang   +3 more
doaj   +1 more source

Slip pulse and resonance of the Kathmandu basin during the 2015 Gorkha earthquake, Nepal [PDF]

open access: yes, 2015
Detailed geodetic imaging of earthquake ruptures enhances our understanding of earthquake physics and associated ground shaking. The 25 April 2015 moment magnitude 7.8 earthquake in Gorkha, Nepal was the first large continental megathrust rupture to have
Avouac, J.-P.   +3 more
core   +1 more source

Land deformation monitoring in mining area with PPP-AR

open access: yesInternational Journal of Mining Science and Technology, 2014
Abstract The mining area deformation monitoring theory and method using precise point positioning (PPP) ambiguity resolution (AR) were studied, and an ambiguity fixing model with satellite and receiver combination phase delay (CPD) was proposed for zero-differenced PPP ambiguity fixing and its corresponding formula derivation was given.
Hong Hu, Jingxiang Gao, Yifei Yao
openaire   +1 more source

PPP and PPP-AR Kinematic Post-Processed Performance of GPS-Only, Galileo-Only and Multi-GNSS

open access: yesRemote Sensing, 2019
Precise point positioning (PPP) has been used for decades not only for general positioning needs but also for geodetic and other scientific applications.
Georgia Katsigianni   +2 more
doaj   +1 more source

Performance Assessment of Multi-GNSS PPP Ambiguity Resolution with LEO-Augmentation

open access: yesRemote Sensing, 2023
The fast motion of low Earth orbit (LEO) satellites provides rapid geometric changes in a short time, which can accelerate the initialization of precise point positioning (PPP).
Qin Li   +4 more
doaj   +1 more source

Performance assessment of PPP surveys with open source software using the GNSS GPS-GLONASS-Galileo constellations [PDF]

open access: yes, 2020
In this work, the performance of the multi-GNSS (Global Navigation Satellite System) Precise Point Positioning (PPP) technique, in static mode, is analyzed.
Angrisano A.   +5 more
core   +4 more sources

Assessing IGS GPS/Galileo/BDS-2/BDS-3 phase bias products with PRIDE PPP-AR

open access: yesSatellite Navigation, 2021
Ambiguity Resolution in Precise Point Positioning (PPP-AR) is important to achieving high-precision positioning in wide areas. The International GNSS (Global Navigation Satellite System) Service (IGS) and some other academic organizations have begun to ...
Jianghui Geng, Songfeng Yang, Jiang Guo
doaj   +1 more source

Performance investigation of LAMBDA and bootstrapping methods for PPP narrow-lane ambiguity resolution

open access: yesGeo-spatial Information Science, 2021
Precise point positioning with ambiguity resolution (PPP-AR) is a powerful tool for geodetic and time-constrained applications that require high precision.
Omer Faruk Atiz   +4 more
doaj   +1 more source

Evaluation of Real-time Precise Point Positioning with Ambiguity Resolution Based on Multi-GNSS OSB Products from CNES

open access: yesRemote Sensing, 2022
Ambiguity resolution (AR) is a core technology that helps to speed up convergence time and increase positioning accuracy for precise point positioning (PPP), and the performance of PPP-AR is based on the quality of ambiguity resolution products.
Shi Du   +5 more
doaj   +1 more source

An uncombined triple-frequency user implementation of the decoupled clock model for PPP-AR [PDF]

open access: yesJournal of Geodesy, 2021
AbstractPrecise point positioning (PPP) has proved its capacity to provide centimetre-level position solutions in open sky environments. However, the technique still suffers from relatively long initial convergence times. Research has proved the potential of ambiguity resolution (AR) to reduce the convergence time and three main methods are used to ...
Nacer Naciri, Sunil Bisnath
openaire   +1 more source

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