Results 11 to 20 of about 8,678 (295)
Remote Sensing, 2021 Irregularities in electron density usually correlate with ionospheric plasma perturbations. These variations causing radio signal fluctuations, in response, generate ionospheric scintillations that frequently occur in low-latitude regions.
Alireza Atabati +3 more
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Odessa Astronomical Publications, 2020 Effect of scintillations arises in the result of interaction of radio signal from the cosmic radio source with irregularities of ionosphere plasma which appears at the registration of observations as amplitude fluctuations.
O. A. Lytvynenko, S. K. Panishko
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Influence of different types of ionospheric disturbances on GPS signals at polar latitudes [PDF]
Annales Geophysicae, 2021 The comparative research of the influence of different types of auroral particle precipitation and polar cap patches (PCPs) on the global positioning system (GPS) signals disturbances in the polar ionosphere was done.
V. B. Belakhovsky, Y. Jin, W. J. Miloch
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Geodesy and Geodynamics, 2019 The amplitude and phase of L-band satellite signals are fluctuated randomly due to small scale electron density irregularity structures in the ionosphere which result in fleeting variations, known as ‘ionospheric scintillations’.
K. Sahithi +6 more
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Characteristics of VHF radiowave scintillations over a solar cycle (1983−1993) at a low-latitude station: Waltair (17.7°N, 83.3°E) [PDF]
Annales Geophysicae, 1997 The characteristics of VHF radiowave scintillations at 244 MHz (FLEETSAT) during a complete solar cycle (1983–93) at a low-latitude station, Waltair (17.7°N, 83.3°E), are presented.
P. V. S. Rama Rao +5 more
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VARIABLE RADIO SOURCES AND TAKING INTO ACCOUNT OF IONOSPHERIC EFFECTS
Odessa Astronomical Publications, 2017 Histograms and mean value of scintillations indexes are obtained for power cosmic radio sources on observations during 1998-2001. Using simulations it is showed that scintillations with periods more then 10 minutes give the error of measuring of ...
O. A. Litvinenko, S. K. Panishko
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Simultaneous observations of ESF irregularities over Indian region using radar and GPS [PDF]
Annales Geophysicae, 2008 In this paper, we present simultaneous observations of temporal and spatial variability of total electron content (TEC) and GPS amplitude scintillations on L1 frequency (1.575 GHz) during the time of equatorial spread F (ESF) while the MST radar (53 ...
S. Sripathi +5 more
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Interstellar Scintillations of Polarization of Compact Sources [PDF]
, 1999 We demostrate that the measurement of fluctuations of polarization due to the galactic interstellar scintillations may be used to study the structure of the radiation field at compact radio sources.
Ghosh T. +3 more
core +2 more sources
SPACE WEATHER: RISK FACTORS FOR GLOBAL NAVIGATION SATELLITE SYSTEMS
Solar-Terrestrial Physics, 2021 Extreme space weather events affect the stability and quality of the global navigation satellite systems (GNSS) of the second generation (GPS, GLONASS, Galileo, BeiDou/Compass) and GNSS augmentation.
V.V. Demyanov, Yu.V. Yasyukevich
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Scintillation Caustics in Planetary Occultation Light Curves [PDF]
, 2003 We revisit the GSC5249-01240 light curve obtained during its occultation by Saturn's North polar region. In addition to refractive scintillations, the power spectrum of intensity fluctuations shows an enhancement of power between refractive and ...
Asantha R. Cooray +4 more
core +3 more sources