Results 1 to 10 of about 87,867 (198)

GPS scintillations and total electron content climatology in the southern low, middle and high latitude regions

Annals of Geophysics, 2013
In recent years, several groups have installed high-frequency sampling receivers in the southern middle and high latitude regions, to monitor ionospheric scintillations and the total electron content (TEC) changes.
Luca Spogli, Lucilla Alfonsi, Pierre J. Cilliers, Emília Correia, Giorgiana De Franceschi, Cathryn N. Mitchell, Vincenzo Romano, Joe Kinrade, Miguel Angel Cabrera   +8 more
doaj   +1 more source

Identification of ionospheric scintillation in the low-latitude African sector using a commercial CubeSat constellation

Journal of Space Weather and Space Climate
Radio occultation (RO) measurements performed by Global Navigation Satellite System (GNSS) receivers onboard low-earth orbit (LEO) satellites are commonly used for a variety of atmospheric applications, including ionospheric and space weather studies. We
Mohanty Shradha, Hoque M. Mainul, Angling Matthew J.   +2 more
doaj   +1 more source

Scintillation Effects in S-Band Telemetry Link of INPE’s Earth Station in Cuiaba-Brazil [PDF]

Radioengineering, 2021
One of the main earth stations that INPE uses to track and control its satellites is located in the city of Cuiaba (15.33°S, 56.46°W, dip latitude, 6.1°S), between the magnetic equator and the peak of the equatorial anomaly.
A. M. P. de Lucena, F. de A. T. F. da Silva, A. S. da Silva   +2 more
doaj  

Amplitude scintillation detection with geodetic GNSS receivers leveraging machine learning decision tree

Satellite Navigation
The amplitude scintillation detection is typically achieved by using the scintillation index generated by dedicated and costly ionospheric scintillation monitoring receivers (ISMRs).
Wang Li, Yiping Jiang, Hongyuan Ji, Wenqiang Wei   +3 more
doaj   +1 more source

Discovery of Regular Daily Ionospheric Scintillation

Atmosphere
The aim of this study was to find out whether, just like in March 2015, daily regular GPS positioning disturbances caused by ionospheric scintillations occurred in other months of the solar activity cycle 24.
Janis Balodis, Madara Normand, Ingus Mitrofanovs   +2 more
doaj   +1 more source

Investigating the Effects of Ionospheric Scintillation on Multi‐Frequency BDS‐2/BDS‐3 Signals at Low Latitudes

Space Weather, 2023
Ionospheric scintillation could seriously disrupt the signal tracking of the global navigation satellite systems (GNSS), further causing positioning accuracy degradation or unavailability.
Hang Liu, Xiaodong Ren, Xiaohong Zhang, Dengkui Mei, Pengxin Yang   +4 more
doaj   +1 more source

Drifting Ionospheric Scintillation Simulation for L-Band Geosynchronous SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
An L-band geosynchronous synthetic aperture radar (GEO SAR) is susceptible to the ionospheric scintillation induced by ionospheric irregularities due to its lower carrier frequency.
Feixiang Tang, Yifei Ji, Yongsheng Zhang, Zhen Dong, Zhaokai Wang, Qingjun Zhang, Bingji Zhao, Heli Gao   +7 more
doaj   +1 more source

Observations and modeling of scintillation in the vicinity of a polar cap patch

Journal of Space Weather and Space Climate, 2022
Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex.
Lamarche Leslie J., Deshpande Kshitija B., Zettergren Matthew D.   +2 more
doaj   +1 more source

Solar Activity Impacts on Ionospheric Scintillation and Precise Point Positioning Based on Multi‐Year GNSS and Scintillation Observations

Space Weather
Solar activity induces ionospheric irregularities that degrade Global Navigation Satellite System (GNSS) performance through amplitude and phase scintillation.
Jincheng Li, Qi Liu, Xiaomin Luo, Manuel Hernández‐Pajares, Enric Monte‐Moreno, Guangxia Wang, Heng Yang, Chuanding Zhang, Li Yang, Yaoyao Liu   +9 more
doaj   +1 more source

GPS phase and amplitude scintillation at high latitudes during the extreme geomagnetic storm of May 2024

Earth, Planets and Space
The May 2024 geomagnetic storm was the most intense in recent decades, significantly affecting the Earth magnetosphere and ionosphere. We investigate GPS amplitude and phase scintillation during the main and recovery phases of the storm using GPS ...
Paul Prikryl, Anthony C. M. McCaffrey, James M. Weygand, Reza Ghoddousi-Fard, Daniel Billett, Emma Spanswick, Joshua Houghton   +6 more
doaj   +1 more source