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Open access
2026
RODTI: A Method for Extracting Ionospheric Scintillation-Related Index Based on DORIS Dual-Frequency Observations and Its Verification on a Global Scale
The advent of the peak year of the 25th solar cycle has led to a notable intensification of ionospheric disturbances, resulting in frequent occurrences of ionospheric scintillation. Ionospheric scintillation has emerged as a critical factor compromising the stability of global navigation satellite system (GNSS) positio...
Dong-Sheng Zhao, Huai-Ke Liu, Ke-Fei Zhang et al.
· IEEE Transactions on Geoscie... · 0 citations
Preprint
Aug 2026
A quiet STEVE disturbs navigation satellites'signals in the Antarctic
Strong Thermal Emission Velocity Enhancement (STEVE) is a narrow optical phenomenon that occurs equatorward of the auroral oval and is associated with intense subauroral plasma flows and thermospheric heating. Although these conditions can produce plasma irregularities, direct evidence of STEVE effects on radio wave pr...
Daria Kotova, L. Spogli, Ya-Qi Jin et al.
· 0 citations
Review
Open access
Sep 2026
Correlation of High‐Latitude Scintillation With Auroral Precipitation: Case Studies Using GNSS Radio Occultation Data From PlanetiQ
This study presents a survey of high‐latitude ionospheric scintillation using GNSS radio occultation (RO) data from the PlanetiQ satellite. The analysis examines 483 high‐latitude RO tracks between January and May 2023, with 371 tracks exhibiting scintillation events. Under our classification scheme and threshold crite...
Margaret W. Chen, E. Yizengaw, J. Hecht et al.
· Space Weather · 0 citations
Review
2026
Double-Difference Iridium/GNSS Hybrid Positioning: Signal Processing and Experimental Evaluation
Global navigation satellite systems (GNSSs) suffer from signal blockage and multipath effects in dense urban environments, leading to degraded positioning performance. Low Earth orbit (LEO) satellites provide stronger received signals and larger Doppler variations, making them promising complementary navigation sources...
Qi Zhang, Bing Xu
· IEEE Transactions on Instrum... · 0 citations
Open access
Aug 2026
Equatorial plasma bubble model for assessment of GBAS satellite availability
One of the main concerns for Ground-Based Augmentation Systems (GBAS) is the occurrence of anomalous ionospheric conditions. In particular, ionospheric scintillation poses a significant threat, as strong scintillation events can cause GNSS receivers to lose signal lock, thereby reducing the number of available satellit...
Dmytro Vasylyev, M. Caamano, Babu Sree Harsha Pasumarthi et al.
· Frontiers in Astronomy and S... · 0 citations
Open access
Sep 2026
A modified threshold model of HMW combination for detecting cycle slips in high-latitude regions during ionospheric scintillation periods
Currently, solar activity is in its 25th peak year, with frequent occurrences of ionospheric scintillation, resulting in a significant increase in cycle slip events in Global Navigation Satellite System (GNSS) observation data and significantly affecting the reliability of precise positioning services. Accurate cycle s...
Dong-Sheng Zhao, Ai-Jia Zhang, Shuang-Lei Cui et al.
· GPS Solutions · 0 citations