Results 11 to 20 of about 70,049 (245)

Real-time GNSS precise point positioning with smartphones for vehicle navigation

open access: yesSatellite Navigation, 2022
The availability of raw Global Navigation Satellite System (GNSS) measurements from Android smart devices gives new possibilities for precise positioning solutions, e.g., Precise Point Positioning (PPP).
Zishen Li   +4 more
doaj   +2 more sources

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   +3 more sources

A New Weighting Approach with Application to Ionospheric Delay Constraint for GPS/GALILEO Real-Time Precise Point Positioning

open access: yesApplied Sciences, 2018
The real-time precise point positioning (RT PPP) technique has attracted increasing attention due to its high-accuracy and real-time performance. However, a considerable initialization time, normally a few hours, is required in order to achieve the ...
Tianjun Liu   +4 more
doaj   +3 more sources

Towards PPP-RTK: Ambiguity resolution in real-time precise point positioning [PDF]

open access: yesAdvances in Space Research, 2011
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
exaly   +3 more sources

Validation and Assessment of Multi-GNSS Real-Time Precise Point Positioning in Simulated Kinematic Mode Using IGS Real-Time Service

open access: yesRemote Sensing, 2018
Precise Point Positioning (PPP) is a popular technology for precise applications based on the Global Navigation Satellite System (GNSS). Multi-GNSS combined PPP has become a hot topic in recent years with the development of multiple GNSSs.
Liang Wang   +5 more
doaj   +3 more sources

Performance analysis of real-time and post-mission kinematic precise point positioning in marine environments

open access: yesGeodesy and Geodynamics, 2020
This article focuses on the performance analysis of both real-time and post-mission kinematic precise point positioning (PPP) in challenging marine environments.
Serdar Erol   +3 more
doaj   +3 more sources

Simulation case study of deformations and landslides using real-time GNSS precise point positioning technique

open access: yesGeomatics, Natural Hazards & Risk, 2016
The precise point positioning (PPP) is a Global Navigation Satellite System (GNSS) computation technique that performs precise positioning using a single receiver.
Raquel M. Capilla   +3 more
doaj   +2 more sources

An integer ambiguity clustering estimator for real-time precise point positioning

open access: yesGeo-spatial Information Science
Real-time precise point positioning with ambiguity resolution (PPP-AR) is considered a valuable positioning tool applicable in various fields. Limited by the precision and stability of real-time satellite products and observation streams, it is ...
Kunlun Zhang   +3 more
doaj   +2 more sources

GNSS Real–Time Precise Point Positioning in Arctic Northeast Passage

open access: yesJournal of Marine Science and Engineering, 2022
Human activities in the Arctic regions have been increasing in recent years due to the impacts of climate change, such as Arctic Sea ice decline. For example, there has been an increase in Arctic shipping routes.
Mingwei Di   +7 more
doaj   +1 more source

Implementation and performance analysis of real time PPP software based on GAMP

open access: yesDianzi Jishu Yingyong, 2022
Aiming at the problem that GAMP software lacks the function of real-time precise point positioning at this stage, this paper analyzes and studies the principle and process of the post precise point positioning algorithm in the software, compares the ...
Liu Ya, He Wentao, Zhang Jie
doaj   +1 more source

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