High-latitude intermittent ionospheric scintillations: Exploring the Castaing distribution

We present a multiscale analysis of the received amplitude fluctuations of the L1 GPS signal. The analysis consists of constructing a differential amplitude signal by taking the difference between the signal at time t and the signal at time t + τ, where τ represents a time lag. The probability densi...

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Bibliographic Details
Published in:Journal of geophysical research. Space physics 2015-08, Vol.120 (8), p.6831-6836
Main Authors: Mezaoui, H., Hamza, A. M., Jayachandran, P. T.
Format: Article
Language:English
Subjects:
Amplitudes
Fluctuation
Fluctuations
Fractal analysis
Geophysics
Global positioning systems
GPS
Ionosphere
Ionospheric disturbances
Ionospheric irregularities
Multiscale analysis
polar cap ionosphere
Probability density functions
Scintillation
Time lag
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Summary:We present a multiscale analysis of the received amplitude fluctuations of the L1 GPS signal. The analysis consists of constructing a differential amplitude signal by taking the difference between the signal at time t and the signal at time t + τ, where τ represents a time lag. The probability density functions of the measured differential amplitude fluctuations are computed and fitted with Castaing distributions. The fourth normalized moment of the distributions is used to investigate the intermittent nature of the signal. The results reveal direct evidence that the intermittent aspect of the investigated scintillation events is more pronounced at small differential time lags than at long ones. Key Point Multifractal analysis of the GPS L1 signal
ISSN:2169-9380
2169-9402
DOI:10.1002/2015JA021304