Results 41 to 50 of about 187,706 (222)

Multi-frequency GNSS robust carrier tracking for ionospheric scintillation mitigation

Journal of Space Weather and Space Climate, 2017
Ionospheric scintillation is the physical phenomena affecting radio waves propagating from the space through the ionosphere to earth. The signal distortion induced by scintillation can pose a major threat to some GNSS application. Scintillation is one of
Vilà-Valls Jordi, Closas Pau, Curran James T.   +2 more
doaj   +1 more source

An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite

Annals of Geophysics, 2013
The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric ...
Paul Prikryl, Yongliang Zhang, Yusuke Ebihara, Reza Ghoddousi-Fard, Periyadan T. Jayachandran, Joe Kinrade, Cathryn N. Mitchell, Allan T. Weatherwax, Gary Bust, Pierre J. Cilliers, Luca Spogli, Lucilla Alfonsi, Vincenzo Romano, Baiqi Ning, Guozhu Li, Martin J. Jarvis, Donald W. Danskin, Emma Spanswick, Eric Donovan, Mike Terkildsen   +19 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  

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

Mitigation of ionospheric scintillation effects on GNSS precise point positioning (PPP) at low latitudes

Journal of Geodesy, 2020
Global navigation satellite systems (GNSS) underpin a number of modern life activities, including applications demanding positioning accuracy at the level of centimetres, such as precision agriculture, offshore operations and mining, to name a few ...
S. Vadakke Veettil, M. Aquino, H. Marques, A. Moraes   +3 more
semanticscholar   +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

A LOFAR observation of ionospheric scintillation from two simultaneous travelling ionospheric disturbances

Journal of Space Weather and Space Climate, 2020
This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cassiopeia A, taken overnight on 18–19 August 2013, and ...
R. Fallows, B. Forte, I. Astin, T. Allbrook, A. Arnold, A. Wood, G. Dorrian, M. Mevius, H. Rothkaehl, B. Matyjasiak, A. Krankowski, James M. Anderson, A. Asgekar, I. Avruch, M. Bentum, M. Bisi, H. Butcher, B. Ciardi, B. Dabrowski, S. Damstra, F. Gasperin, S. Duscha, J. Eislöffel, T. Franzen, M. Garrett, M. Garrett, J. Grießmeier, J. Grießmeier, A. Gunst, M. Hoeft, J. Hörandel, J. Hörandel, M. Iacobelli, H. Intema, L. Koopmans, P. Maat, G. Mann, A. Nelles, H. Paas, V. Pandey, V. Pandey, W. Reich, A. Rowlinson, A. Rowlinson, M. Ruiter, D. Schwarz, M. Serylak, A. Shulevski, O. Smirnov, M. Soida, M. Steinmetz, S. Thoudam, M. C. Toribio, A. Ardenne, I. Bemmel, M. Wiel, M. P. V. Haarlem, R. Vermeulen, C. Vocks, R. Wijers, O. Wucknitz, P. Zarka, P. Zucca   +62 more
semanticscholar   +1 more source

Global morphology of ionospheric scintillations

Proceedings of the IEEE, 1971
Starting with post World War II studies of fading of radio star sources and continuing with fading of satellite signals of Sputnik, vast quantities of data have built up on the effect of ionospheric irregularities on signals from beyond the F layer. The review attempts to organize the available amplitude and phase scintillation data into equatorial ...
J. Aarons, H.E. Whitney, R.S. Allen
openaire   +3 more sources

The Prediction of Day‐to‐Day Occurrence of Low Latitude Ionospheric Strong Scintillation Using Gradient Boosting Algorithm

Space Weather, 2021
Ionospheric scintillations caused by equatorial plasma bubbles (EPBs) can seriously affect various high technology systems based on Global Navigation Satellite System (GNSS) signals at equatorial and low latitudes.
Xiukuan Zhao, Guozhu Li, Haiyong Xie, Lianhuan Hu, Wenjie Sun, Sipeng Yang, Yi Li, Baiqi Ning, Hisao Takahashi   +8 more
doaj   +1 more source

SEPARATING NIGHTSIDE INTERPLANETARY AND IONOSPHERIC SCINTILLATION WITH LOFAR [PDF]

The Astrophysical Journal Letters, 2016
ABSTRACT Observation of interplanetary scintillation (IPS) beyond Earth-orbit can be challenging due to the necessity to use low radio frequencies at which scintillation due to the ionosphere could confuse the interplanetary contribution. A recent paper by Kaplan et al.
R. A. Fallows, M. M. Bisi, B. Forte, Th. Ulich, A. A. Konovalenko, G. Mann, C. Vocks   +6 more
openaire   +3 more sources