Results 21 to 30 of about 1,004 (162)

GNSS techniques for real-time monitoring of landslides: a review

open access: yesSatellite Navigation, 2023
Currently, Global Navigation Satellite System (GNSS) Real-Time Kinematic positioning (RTK) and Precise Point Positioning (PPP) techniques are widely employed for real-time monitoring of landslides.
Guanwen Huang, Shi Du, Duo Wang
doaj   +1 more source

Review and principles of PPP-RTK methods [PDF]

open access: yesJournal of Geodesy, 2014
PPP-RTK is integer ambiguity resolution-enabled precise point positioning. In this contribution, we present the principles of PPP-RTK, together with a review of different mechanizations that have been proposed in the literature. By application of $$\mathcal {S}$$
Teunissen, Peter, Khodabandeh, Amir
openaire   +2 more sources

Atmospheric Delay Correction Utilization Method for Out-of-Network PPP-RTK Users

open access: yesRemote Sensing, 2022
Traditional PPP-RTK algorithm research has focused on users in a reference station network. However, if a proper PPP-RTK user algorithm can be designed for out-of-network users to achieve accurate and rapid positioning, the effective service area of ...
Siyao Wang   +5 more
doaj   +1 more source

Assessment of the performance of GPS/Galileo PPP-RTK convergence using ionospheric corrections from networks with different scales

open access: yesEarth, Planets and Space, 2022
The rapid convergence of precise point positioning real-time kinematics (PPP-RTK) with centimeter-level accuracy is of utmost importance for many applications.
Zhongbao Yan, Xiaohong Zhang
doaj   +1 more source

Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning

open access: yesSatellite Navigation, 2023
Integrity monitoring for precise point positioning is critical for safety-related applications. With the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles, the integrity monitoring method of high-precision ...
Wenhao Zhang, Jinling Wang
doaj   +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

Integration of Multi-GNSS PPP-RTK/INS/Vision with a Cascading Kalman Filter for Vehicle Navigation in Urban Areas

open access: yesRemote Sensing, 2022
Precise point positioning (PPP) has received much attention in recent years for its low cost, high accuracy, and global coverage. Nowadays, PPP with ambiguity resolution and atmospheric augmentation is widely regarded as PPP-RTK (real-time kinematic ...
Shengfeng Gu   +3 more
doaj   +1 more source

External Tropospheric Corrections by Using Kriging Interpolation for Improving PPP-RTK Positioning Solutions

open access: yesRemote Sensing, 2022
With the availability of satellite carrier-phase delay corrections provided by a reference network or the International GNSS Service (IGS), the integer ambiguity resolution for a single receiver can be successfully achieved, which is the so-called PPP ...
Chuanfeng Song   +4 more
doaj   +1 more source

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

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