Results 221 to 230 of about 46,320 (319)

Improvement and automation of the test process of attitude navigation receivers used in the aerospace industry due to the application of GNSS simulators

, 2019
Anatoly Frolov
openalex   +1 more source

Slip‐Event Timing and Ice Velocity Vary at Long‐Period Ocean Tidal Frequencies at Whillans Ice Plain, West Antarctica

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.
Abstract Whillans Ice Plain (WIP), a region of West Antarctica flowing into the southern Ross Sea, lurches forward 0.2–0.6 m over 30–60 min once or twice per diurnal ocean tidal cycle. Combining 11 years (2008–2019) of 30 s or better resolution Global Navigation Satellite System (GNSS) data from past field campaigns is necessary to provide insight into
Z. S. Katz, M. R. Siegfried, L. Padman
wiley   +1 more source

A Study on a High-Precision 3D Position Estimation Technique Using Only an IMU in a GNSS Shadow Zone. [PDF]

Sensors (Basel)
Ding Y, Kim Y, Kim H.
europepmc   +1 more source

Characterizing North‐South Ionospheric Gradients During Geomagnetic Storms: A Variogram Enhancement for Wide Area Ionospheric Models

Space Weather, Volume 24, Issue 1, January 2026.
Abstract The intensified solar maximum of Cycle 25 has heightened space weather risks to Global Navigation Satellite Systems (GNSS), where geomagnetic storms critically challenge Positioning, Navigation, and Timing (PNT) availability. Current wide‐area ionospheric models may fail to resolve extreme latitudinal Total Electron Content (TEC) gradients ...
Tong Liu, Yiping Jiang, Bo Chen, Jian Liu, Yufang He, Wu Chen   +5 more
wiley   +1 more source

Development of an active counter unmanned aerial system with integrated autonomous mobile robot for inspection and defense. [PDF]

Sci Rep
Li S, Fan K, Cai W, Wang L, Fan A.
europepmc   +1 more source

Prediction of Multipath Interference for Static GNSS Applications

, 2018
Yedukondalu Kamatham
openalex   +2 more sources

Regional Medium‐Scale Traveling Ionospheric Disturbance Propagation Model Based on BDS GEO Satellites

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Accurate modeling of traveling ionospheric disturbances (TIDs) is essential for characterizing their spatiotemporal variations and mitigating their effects on Global Navigation Satellite System (GNSS) precise positioning. This study develops a regional medium‐scale TID (MSTID) propagation model using BeiDou geostationary orbit (GEO) total ...
Dengkui Mei, Xiaohong Zhang, Xiaodong Ren, Xuan Le, Wentao Yang, Ahmed Abdelaziz   +5 more
wiley   +1 more source

Neural Networks for Estimating Attitude, Line of Sight, and GNSS Ambiguity Through Onboard Sensor Fusion. [PDF]

Sensors (Basel)
de Celis R, Cadarso L.
europepmc   +1 more source

Navigating Latency Hurdles: An In-Depth Examination of a Cloud-Powered GNSS Real-Time Positioning Application on Mobile Devices [PDF]

Jorge Hernández Olcina, Ana Belén Anquela Julián, Ángel Martín Furones   +2 more
openalex   +1 more source

Global Ionospheric Slab Thickness Prediction Model Using XGBoost and Ensemble Learning

Space Weather, Volume 24, Issue 1, January 2026.
Abstract The ionospheric equivalent slab thickness is a key parameter for understanding the plasma distribution in the ionosphere, with direct relevance to satellite navigation, communication, and skywave over‐the‐horizon radar. However, traditional prediction methods often suffer from regional biases, limiting their global applicability.
C. Han, X. R. Chong, M. Ou, D. D. Wang, J. Feng, G. Chen, X. L. Min, D. W. Wang, Z. X. Gao   +8 more
wiley   +1 more source