Paper Info
Title
Adaptive Phase Detrending for GNSS Scintillation Detection: A Case Study Over Antarctica
Abstract
We aim at contributing to the reliability of the phase scintillation index on Global Navigation Satellite System (GNSS) signals at high-latitude. To the scope, we leverage on a recently introduced detrending scheme based on the signal decomposition provided by the fast iterative filtering (FIF) technique. This detrending scheme has been demonstrated to enable a fine-tuning of the cutoff frequency for phase detrending used in the phase scintillation index definition. In a single case study based on Galileo data taken by a GNSS ionospheric scintillation monitor receiver (ISMR) in Concordia Station (Antarctica), we investigate how to step ahead of the cutoff frequency optimization. We show how the FIF-based detrending allows deriving adaptive cutoff frequencies, whose value changes minute-by-minute. They are found to range between 0.4 and 1.2 Hz. This allows better accounting for diffractive effects in phase scintillation index calculation and provides a GNSS-based estimation of the relative velocity between satellite and ionospheric irregularities.
Year
DOI
Venue
2022
10.1109/LGRS.2021.3067727
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Keywords
DocType
Volume
Cutoff frequency, Global navigation satellite system, Indexes, Ionosphere, Receivers, Standards, Monitoring, Galileo, Global Navigation Satellite Systems (GNSSs), ionosphere, ionospheric irregularities, iterative filtering, modal analysis, signal processing algorithm, transform
Journal
19
ISSN
Citations 
PageRank 
1545-598X
0
0.34
References 
Authors
0
8
Name
Order
Citations
PageRank
Luca Spogli101.35
Hossein Ghobadi200.68
Antonio Cicone300.34
Lucilla Alfonsi412.05
Claudio Cesaroni512.72
Nicola Linty600.34
Vincenzo Romano700.68
Massimo Cafaro838955.83