Disentangling ionospheric refraction and diffraction effects in GNSS raw phase through fast iterative filtering technique Article Swipe
Hossein Ghobadi
,
Luca Spogli
,
Lucilla Alfonsi
,
Claudio Cesaroni
,
Antonio Cicone
,
Nicola Linty
,
Vincenzo Romano
,
Massimo Cafaro
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.1007/s10291-020-01001-1
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.1007/s10291-020-01001-1
We contribute to the debate on the identification of phase scintillation induced by the ionosphere on the global navigation satellite system (GNSS) by introducing a phase detrending method able to provide realistic values of the phase scintillation index at high latitude. It is based on the fast iterative filtering signal decomposition technique, which is a recently developed fast implementation of the well-established adaptive local iterative filtering algorithm. FIF has been conceived to decompose nonstationary signals efficiently and provide a discrete set of oscillating functions, each of them having its frequency. It overcomes most of the problems that arise when using traditional time–frequency analysis techniques and relies on a consolidated mathematical basis since its a priori convergence and stability have been proved. By relying on the capability of FIF to efficiently identify the frequencies embedded in the GNSS raw phase, we define a method based on the FIF-derived spectral features to identify the proper cutoff frequency for phase detrending. To test such a method, we analyze the data acquired from GPS and Galileo signals over Antarctica during the September 2017 storm by the ionospheric scintillation monitor receiver (ISMR) located in Concordia Station (75.10° S, 123.33° E). Different cases of diffraction and refraction effects are provided, showing the capability of the method in deriving a more accurate determination of the $$\sigma_{\phi }$$ index. We found values of cutoff frequency in the range of 0.73–0.83 Hz, providing further evidence of the inadequacy of the choice of 0.1 Hz, which is often used when dealing with ionospheric scintillation monitoring at high latitudes.
Related Topics
Concepts
GNSS applications
Interplanetary scintillation
Scintillation
Algorithm
Computer science
Remote sensing
Ionosphere
Phase (matter)
Global Positioning System
Geology
Physics
Geophysics
Telecommunications
Magnetic field
Solar wind
Quantum mechanics
Coronal mass ejection
Detector
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1007/s10291-020-01001-1
- https://link.springer.com/content/pdf/10.1007/s10291-020-01001-1.pdf
- OA Status
- hybrid
- Cited By
- 79
- References
- 60
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3038233030
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3038233030Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1007/s10291-020-01001-1Digital Object Identifier
- Title
-
Disentangling ionospheric refraction and diffraction effects in GNSS raw phase through fast iterative filtering techniqueWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2020Year of publication
- Publication date
-
2020-06-29Full publication date if available
- Authors
-
Hossein Ghobadi, Luca Spogli, Lucilla Alfonsi, Claudio Cesaroni, Antonio Cicone, Nicola Linty, Vincenzo Romano, Massimo CafaroList of authors in order
- Landing page
-
https://doi.org/10.1007/s10291-020-01001-1Publisher landing page
- PDF URL
-
https://link.springer.com/content/pdf/10.1007/s10291-020-01001-1.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
hybridOpen access status per OpenAlex
- OA URL
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https://link.springer.com/content/pdf/10.1007/s10291-020-01001-1.pdfDirect OA link when available
- Concepts
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GNSS applications, Interplanetary scintillation, Scintillation, Algorithm, Computer science, Remote sensing, Ionosphere, Phase (matter), Global Positioning System, Geology, Physics, Geophysics, Telecommunications, Magnetic field, Solar wind, Quantum mechanics, Coronal mass ejection, DetectorTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
79Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 7, 2024: 18, 2023: 15, 2022: 21, 2021: 14Per-year citation counts (last 5 years)
- References (count)
-
60Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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