Results 131 to 140 of about 10,544 (275)
A Novel VLSI Architecture for Multi-Constellation and Multi-Frequency GNSS Acquisition Engine [PDF]
, 2018 Yuheng Yang, Xiaohui Ba, Jie Chen
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Performance Assessment of Multi-GNSS PPP Ambiguity Resolution with LEO-Augmentation [PDF]
, 2023 Qin Li +4 more
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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
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Distributed Timing and Localization (DiGiTaL) [PDF]
The Distributed Timing and Localization (DiGiTaL) system provides nano satellite formations with unprecedented,centimeter-level navigation accuracy in real time and nanosecond-level time synchronization.
Baker, Christopher +2 more
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Twenty-year continuous operation of Syowa IGS station [PDF]
, 2017 第8回極域科学シンポジウム/個別セッション：[OG] 極域地圏12月5日（火）国立極地研究所 3階セミナー室The Eighth Symposium on Polar Science/Ordinary sessions: [OG] Polar GeosciencesTue.
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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 +5 more
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GNSS-IR Snow Depth Retrieval Based on the Fusion of Multi-Satellite SNR Data by the BP Neural Network [PDF]
, 2022 Junyu Zhan +7 more
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Topside Ionization and Effect on Altitudinal Evolution of Nocturnal Ionospheric Irregularities
Space Weather, Volume 24, Issue 1, January 2026.Abstract Topside ionospheric electron density (Ne) and its control on the variabilities in nocturnal ionospheric irregularities is examined globally using electron density measurements from COSMIC‐2 and Swarm satellite, along with the Swarm satellite‐based Ionospheric Plasma Irregularity (IPIR) index for low and high solar activity (LSA and HSA ...
T. V. Sruthi, G. Manju
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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 +5 more
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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 +8 more
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