Results 31 to 40 of about 1,482 (190)

Almost-Instantaneous PPP-RTK Without Atmospheric Corrections

open access: yes, 2022
AbstractAmbiguity resolution enabled precise point positioning (PPP-RTK) can provide fast, potentially even instantaneous, centimeter-level positioning results, given that the phase ambiguities are correctly resolved. Without external ionospheric corrections, a time-to-first-fix the ambiguities of around 30 min is often reported for GPS-only solutions.
Andreas Brack   +2 more
openaire   +4 more sources

A Dense Reference Network for Mass-Market Centimeter-Accurate Positioning [PDF]

open access: yes, 2016
The quality of atmospheric corrections provided by a dense reference network for centimeter-accurate carrierphase differential GNSS (CDGNSS) positioning is investigated.
Gonzalez, Collin W.   +3 more
core   +1 more source

Precise Real-Time GNSS Positioning Using Different Correction Representation [PDF]

open access: yes, 2023
Příspěvek se zabývá srovnáním metody Real Time Kinematic (RTK) a metody Precise Point Positioning (PPP) s rychlým řešením ambiguit (PPP-RTK). Obě metody využívají různé korekční modely, které ovlivňují jejich výsledky.
Nosek, Jakub, Václavovic, Pavel
core   +1 more source

A new large-area hierarchical PPP-RTK service strategy [PDF]

open access: yesGPS Solutions, 2023
AbstractIntroducing precise atmosphere information into precise point positioning enables rapid ambiguity resolution and introduces a significant accuracy improvement. However, it can only be implemented in regions with dense networks and stable communication links.
Cui, B.   +5 more
openaire   +3 more sources

PPP–RTK functional models formulated with undifferenced and uncombined GNSS observations

open access: yesSatellite Navigation, 2022
Technique PPP–RTK combines the advantages of both the Precise Point Positioning (PPP) and the Real-Time Kinematic (RTK) positioning. With the emergence of multi-frequency Global Navigation Satellite System (GNSS) observations, it is preferable to ...
Baocheng Zhang   +3 more
doaj   +1 more source

FLAMINGO – Fulfilling enhanced location accuracy in the mass-market through initial GalileO services [PDF]

open access: yes, 2018
This paper discusses FLAMINGO, an initiative that will provide a high accuracy positioning service to be used by mass market applications. The status and future for the initiative are discussed, the required accuracies and other location parameters are ...
Arzel, Laurent   +7 more
core   +1 more source

A Consistent Regional Vertical Ionospheric Model and Application in PPP-RTK Under Sparse Networks

open access: yesNavigation, 2023
Ionospheric augmentation is one of the most important dependences of PPP-RTK. Because of the dispersive features of the ionosphere, the ionospheric information is usually coupled with satellite- and receiver-related biases.
Sijie Lyu   +5 more
doaj   +1 more source

A Multi-Frequency Galileo PPP-RTK Convergence Analysis with an Emphasis on the Role of Frequency Spacing

open access: yesRemote Sensing, 2021
The single-receiver integer ambiguity resolution-enabled variant of precise point positioning (PPP), namely PPP-RTK, has proven to be crucial in reducing the long convergence time of PPP solutions through the recovery of the integerness of the user ...
Dimitrios Psychas   +2 more
doaj   +1 more source

Principle and performance of multi-frequency and multi-GNSS PPP-RTK

open access: yesSatellite Navigation, 2022
PPP-RTK which takes full advantages of both Real-Time Kinematic (RTK) and Precise Point Positioning (PPP), is able to provide centimeter-level positioning accuracy with rapid integer Ambiguity Resolution (AR).
Xingxing Li   +5 more
doaj   +1 more source

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