Results 101 to 110 of about 42,321 (217)

Relatively Intense Daytime GNSS Amplitude Scintillations at Middle Latitude Linked With Multi‐Layered Strong Es Structures

Geophysical Research Letters
Intense Global Navigation Satellite System (GNSS) amplitude scintillations usually occur in nighttime at low latitudes due to ionospheric plasma bubble irregularities.
Wenjie Sun, Yuichi Otsuka, Guozhu Li, Zhe Yang, Yuanfa Ji, Wenbin Liang, Renjin Zhang, Xiukuan Zhao, Lianhuan Hu, Biqiang Zhao, Jianfei Liu, Guofeng Dai, Yi Li, Haiyong Xie, Baiqi Ning   +14 more
doaj   +1 more source

Ionospheric precursors to scintillation activity

Annals of Geophysics, 2014
Ionospheric scintillation is the rapid fluctuation of both phase and amplitude of trans-ionospheric radio waves due to small scale electron density irregularities in the ionosphere. Prediction of the occurrence of scintillation at L band frequencies is needed to mitigate the disruption of space-based communication and navigation systems. The purpose of
openaire   +3 more sources

Kalman Filter based robust GNSS signal tracking algorithm in presence of ionospheric scintillations

, 2012
International audienceIonospheric scintillations are created by diffraction when the transmitted propagating waves encounter a medium made of irregular structures with variable refraction indexes.
Barreau, Valentin, Vigneau, Willy, Lina Deambrogio, Deambrogio, Lina, Willy Vigneau, Christophe Macabiau, Macabiau, Christophe, Valentin Barreau   +7 more
core   +1 more source

RADIO STAR SCINTILLATIONS AND IONOSPHERIC DISTURBANCES

, 1959
The generation mechanism for the ionization irregularities in the upper atmosphere which are responsible for radio star scintillations is considered.
T. R. Hartz
core   +1 more source

Combined Estimation of Ionospheric Scintillations in SAR images exploiting Faraday Rotation and Autofocus for the Biomass Mission

, 2021
At lower frequencies, synthetic aperture radar images can be significantly affected by ionospheric scintillations. In thispaper an approach that combines the Faraday rotation and the autofocus estimation method is proposed, which achieves asuperior ...
Rodriguez Cassola, Marc, Prats, Pau, Papathanassiou, Konstantinos, Gracheva, Valeria, Kim, Junsu   +4 more
core  

Monitoring, tracking and forecasting ionospheric perturbations using GNSS techniques

Journal of Space Weather and Space Climate, 2012
The paper reviews the current state of GNSS-based detection, monitoring and forecasting of ionospheric perturbations in Europe in relation to the COST action ES0803 “Developing Space Weather Products and Services in Europe”.
Tomasik Lukasz, Stanislawska Iwona, Jacobsen Knut Stanley, Pajares Manuel Hernandez, De Franceschi Giorgiana, Béniguel Yannick, Jakowski Norbert, Warnant René, Wautelet Gilles   +8 more
doaj   +1 more source

Morphological and Spectral Features of Ionospheric Structures at E- and F-Region Altitudes over Poker Flat Analyzed Using Modeling and Observations. [PDF]

Sensors (Basel), 2023
Vaggu PR, Deshpande KB, Datta-Barua S, Bust GS, Hampton DL, Rubio AL, Conroy JP.   +6 more
europepmc   +1 more source

Modeling High-Latitude Ionospheric Scintillations for Radio Occultation GPS Receiver Performance Analysis

, 2017
The performance of a radio occultation GPS receiver carrier tracking loop, subjected to ionospheric scintillations, is studied in this thesis. A physics-based simulation of high-latitude ionospheric disturbances for radio occultation signals has been ...
Najmafshar, Maryam
core   +1 more source

Comparison of Simulated and Measured Power of the Earth-Space Link for Satellite-Based AIS Signals. [PDF]

Sensors (Basel), 2023
Dong X, Yuan Z, Sun F, Zhu Q, Sun M, Zhu P.   +5 more
europepmc   +1 more source

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021. [PDF]

Sensors (Basel), 2023
He L, Guo C, Yue Q, Zhang S, Qin Z, Zhang J.   +5 more
europepmc   +1 more source