Results 171 to 180 of about 11,603,365 (342)

IM-GIV: an effective integrity monitoring scheme for tightly-coupled GNSS/INS/Vision integration based on factor graph optimization [PDF]

arXiv
Global Navigation Satellite System/Inertial Navigation System (GNSS/INS)/Vision integration based on factor graph optimization (FGO) has recently attracted extensive attention in navigation and robotics community. Integrity monitoring (IM) capability is required when FGO-based integrated navigation system is used for safety-critical applications ...
arxiv  

Benefits of GNSS Local Observations Compared to Global Weather‐Based Models for InSAR Tropospheric Corrections Over Tropical Volcanoes: Case Studies of Piton De La Fournaise and Merapi

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract From repeat‐pass interferometry, tropospheric signals often prevent the detection of ground deformation signals. In recent years, tropospheric corrections derived from global weather‐based models have been implemented in several InSAR processing chains.
F. Albino, S. Gremion, V. Pinel, P. Bouygues, A. Peltier, F. Beauducel, J.‐L. Froger, Agus Budi Santoso   +7 more
wiley   +1 more source

GNSS/GPS Spoofing and Jamming Identification Using Machine Learning and Deep Learning [PDF]

arXiv
The increasing reliance on Global Navigation Satellite Systems (GNSS), particularly the Global Positioning System (GPS), underscores the urgent need to safeguard these technologies against malicious threats such as spoofing and jamming. As the backbone for positioning, navigation, and timing (PNT) across various applications including transportation ...
arxiv  

Spatiotemporal Patterns of Subsidence and Sea Level Rise in the Samoan Islands 15 Years After the 2009 Samoa‐Tonga Earthquake

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Fifteen years after the 2009 Samoa‐Tonga earthquake, rates of subsidence on the Samoan Islands remain elevated compared with pre‐earthquake levels. Coastal flooding has become a regular occurrence, increasing coastal erosion, risk of saltwater intrusion in freshwater aquifers, and threats to critical infrastructure.
Stacey A. Huang, Jeanne M. Sauber, Shin‐Chan Han, Richard Ray, Eric Fielding   +4 more
wiley   +1 more source

Multimodal-to-Text Prompt Engineering in Large Language Models Using Feature Embeddings for GNSS Interference Characterization [PDF]

arXiv
Large language models (LLMs) are advanced AI systems applied across various domains, including NLP, information retrieval, and recommendation systems. Despite their adaptability and efficiency, LLMs have not been extensively explored for signal processing tasks, particularly in the domain of global navigation satellite system (GNSS) interference ...
arxiv  

Inferring 3‐D Rheology of Low‐Viscosity Zone Around Quaternary Volcanoes of NE Japan From Postseismic Deformation of the 2011 Tohoku‐Oki Earthquake

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Several geological and geophysical studies suggest the small‐scale presence of low viscosity zone (i.e., LVZ) beneath the Quaternary volcanoes of northeastern Japan. Before the 2011 Mw9.0 Tohoku‐oki earthquake, scientists hypothesized that these LVZs cause localized crustal deformations around the Quaternary volcanoes. However, the deformation‐
Sambuddha Dhar, Youichiro Takada, Jun Muto   +2 more
wiley   +1 more source

Characterizing Shallow Aseismic Deformation Along the Dead Sea Pull‐Apart Basin Using Geodetic Observations

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract We use creepmeter (CM), Global Navigation Satellite System (GNSS), Interferometric Synthetic Aperture Radar (InSAR) and airborne Light Detection and Ranging (LiDAR) observations to characterize transient aseismic deformation along the central Dead Sea pull‐apart basin, which is located at the southern part of the sinistral Dead Sea Fault (DSF).
Yariv Hamiel, Roger Bilham, Oksana Piatibratova   +2 more
wiley   +1 more source

A Wideband Antenna for GNSS Applications with Improved Orthogonal Dipole [PDF]

, 2022
Daming Lin, Encheng Wang, Jie Wang
openalex   +1 more source

GNSS Observations of the Land Uplift in South Africa: Implications for Water Mass Loss

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Continuously operating Global Navigation Satellite System (GNSS) base stations in South Africa show a spatially coherent vertical displacement. While one hypothesis attributes this vertical motion to crustal deformation from mantle flow and dynamic topography (Hammond et al., 2021, https://doi.org/10.1029/2021jb022355), we propose an ...
Christian A. Mielke, Makan A. Karegar, Helena Gerdener, Jürgen Kusche   +3 more
wiley   +1 more source

GNSS Receivers, Theirs Features, User Environment And Applications

, 2014
J. Januszewski
openalex   +1 more source