Results 41 to 50 of about 1,482 (190)

Assessment of the Feasibility of PPP-B2b Service for Real-Time Coseismic Displacement Retrieval

open access: yesRemote Sensing, 2021
Traditional coseismic displacement retrieval generally uses real-time kinematic (RTK) and precise point positioning (PPP) services. However, both RTK and real-time PPP need a network link to transmit the corrected data.
Hao Yang   +5 more
doaj   +1 more source

Preliminary performance analysis using the PPP-RTK service of the National Land and Mapping Center in Taiwan [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Low-cost navigation and positioning systems have become a prominent research field in recent years. In the autonomous vehicle domain, real-time accurate vehicle position determination within lanes is essential for high-level autonomous driving. Regarding
J.-Y. Lin   +4 more
doaj   +1 more source

Ionospheric tomographic common clock model of undifferenced uncombined GNSS measurements [PDF]

open access: yes, 2021
This is a post-peer-review, pre-copyedit version of an article published in Journal of geodesy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00190-021-01568-8In this manuscript, we introduce the Ionospheric ...
García Rigo, Alberto   +11 more
core   +2 more sources

Quasi-4-dimension ionospheric modeling and its application in PPP [PDF]

open access: yes, 2022
The version of record of this article, first published in Satellite Navigation, is available online at Publisher’s website: http://dx.doi.org/10.1186/s43020-022-00085-zIonospheric delay modeling is not only important for GNSS based space weather study ...
Chengkun, Gan   +7 more
core   +1 more source

The Influence of Zenith Tropospheric Delay on PPP-RTK [PDF]

open access: yesJournal of Applied Engineering Sciences, 2016
Abstract The PPP technique is more and more used in different GPS precise application. The PPP precision is related to many factors and the most important are: the number of satellites, the ambiguity resolution, the ability to model the ionospheric and tropospheric delays, solid earth and ocean tides, relativistic effects and antenna ...
S. Nistor, A.S. Buda
openaire   +1 more source

The Performance of Three-Frequency GPS PPP-RTK with Partial Ambiguity Resolution

open access: yesAtmosphere, 2022
The correct ambiguity resolution of real-time kinematic precise point positioning (PPP-RTK) plays an essential role in achieving fast, reliable, and high-precision positioning.
Zhongbao Yan, Xiaohong Zhang
doaj   +1 more source

Consistency of PPP GPS and strong-motion records: case study of Mw9.0 Tohoku-Oki 2011 earthquake [PDF]

open access: yes, 2015
GPS and strong-motion sensors are broadly used for the monitoring of structural health and Earth surface motions, focusing on response of structures, earthquake characterization and rupture modeling.
Houlié, Nicolas   +3 more
core   +2 more sources

Absolute and relative POD of LEO satellites in formation flying: Undifferenced and uncombined approach [PDF]

open access: yes, 2023
Absolute or relative precise orbit determination (POD) is an essential prerequisite for many low earth orbit (LEO) missions. The POD of LEO satellites typically relays on processing the onboard global navigation satellite system (GNSS) measurements.
Allahvirdizadeh, Amir   +6 more
core   +1 more source

GNSS rapid precise point positioning enhanced by low Earth orbit satellites

open access: yesSatellite Navigation, 2023
The Low Earth Orbit (LEO) satellites can be used to effectively speed up Precise Point Positioning (PPP) convergence. In this study, 180 LEO satellites with a global distribution are simulated to evaluate their contribution to the PPP convergence.
Ju Hong   +7 more
doaj   +1 more source

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