Results 61 to 70 of about 109,915 (264)

GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept [PDF]

open access: yes, 2018
The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists.
Baggen, Rens   +4 more
core   +2 more sources

A GRU and AKF-Based Hybrid Algorithm for Improving INS/GNSS Navigation Accuracy during GNSS Outage

open access: yesRemote Sensing, 2022
The integrated navigation system consisting of an inertial navigation system (INS) and Global Navigation Satellite System (GNSS) provides continuous high-accuracy positioning whereas the navigation accuracy during a GNSS outage inevitably degrades owing ...
Yanan Tang   +5 more
doaj   +1 more source

Design and Validation of a Cascading Vector Tracking Loop in High Dynamic Environments

open access: yesRemote Sensing, 2021
This paper designs a cascading vector tracking loop based on the Unscented Kalman Filter (UKF) for high dynamic environment. Constant improvement in dynamic performance is an enormous challenge to the traditional receiver.
Zhiyong Tu   +4 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

GNSS Outlier Mitigation Via Graduated Non-Convexity Factor Graph Optimization [PDF]

open access: yesarXiv, 2021
Accurate and globally referenced global navigation satellite system (GNSS) based vehicular positioning can be achieved in outlier-free open areas. However, the performance of GNSS can be significantly degraded by outlier measurements, such as multipath effects and non-line-of-sight (NLOS) receptions arising from signal reflections of buildings ...
arxiv  

Preliminary signs of the initiation of deep convection by GNSS [PDF]

open access: yes, 2013
This study reports on the exploitation of GNSS (Global Navigation Satellite System) and a new potential application for weather forecasts and nowcasting.
Brenot, H   +8 more
core   +3 more sources

Detecting GNSS misbehavior leveraging secure heterogeneous time sources [PDF]

open access: yesarXiv, 2023
Civilian Global Navigation Satellite Systems (GNSS) vulnerabilities are a threat to a wide gamut of critical systems. GNSS receivers, as part of the encompassing platform, can leverage external information to detect GNSS attacks. Specifically, cross-checking the time produced by the GNSS receiver against multiple trusted time sources can provide robust
arxiv  

Implicit Cooperative Positioning in Vehicular Networks [PDF]

open access: yes, 2017
Absolute positioning of vehicles is based on Global Navigation Satellite Systems (GNSS) combined with on-board sensors and high-resolution maps. In Cooperative Intelligent Transportation Systems (C-ITS), the positioning performance can be augmented by ...
Denis, Benoit   +5 more
core   +2 more sources

Optimisation of GNSS satellite selection for accurate GNSS positioning

open access: yes, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Alluhaybi, A.   +2 more
openaire   +2 more sources

High-precision Hardware Oscillators Ensemble for GNSS Attack Detection [PDF]

open access: yesarXiv, 2022
A wide gamut of important applications rely on global navigation satellite systems (GNSS) for precise time and positioning. Attackers dictating the GNSS receiver position and time solution are a significant risk, especially due to the inherent vulnerability of GNSS systems.
arxiv  

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