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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34T/4578HFE
Repositorysid.inpe.br/mtc-m21d/2021/08.02.13.05   (restricted access)
Last Update2021:08.02.13.05.10 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21d/2021/08.02.13.05.11
Metadata Last Update2022:04.03.19.23.58 (UTC) administrator
DOI10.1007/s10712-021-09643-7
ISSN0169-3298
Citation KeySallesVanMorCosPau:2021:InIoSc
TitleInvestigating Ionospheric Scintillation Effects on Multifrequency GPS Signals
Year2021
MonthJuly
Access Date2024, June 15
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size4886 KiB
2. Context
Author1 Salles, Lucas A.
2 Vani, Bruno C.
3 Moraes, Alison
4 Costa, Emanoel
5 Paula, Eurico Rodrigues de
Resume Identifier1
2
3
4
5 8JMKD3MGP5W/3C9JH2U
ORCID1 0000-0003-1903-5396
2 0000-0002-4022-9227
3 0000-0002-6493-1694
4 0000-0001-6256-2701
5 0000-0003-2756-3826
Group1
2
3
4
5 DIHPA-CGCE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Tecnológico de Aeronáutica (ITA)
2 Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP)
3 Instituto de Aeronáutica e Espaço (IAE)
4 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)
5 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 lucas.salles@ga.ita.br
2 brunovani@ifsp.edu.br
3 aom@ita.br
4 epoc@cetuc.puc-rio.br
5 eurico.ruth@gmail.com
JournalSurveys in Geophysics
Volume42
Number4
Pages999-1025
Secondary MarkA1_GEOCIÊNCIAS A2_ENGENHARIAS_IV B1_ASTRONOMIA_/_FÍSICA
History (UTC)2021-08-02 13:05:11 :: simone -> administrator ::
2021-08-02 13:05:11 :: administrator -> simone :: 2021
2021-08-02 13:07:15 :: simone -> administrator :: 2021
2022-04-03 19:23:58 :: administrator -> simone :: 2021
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsIonospheric scintillationEquatorial plasma bubblesGNSS fading characterization
AbstractOver the last 15 years, the satellite constellation of the global positioning system (GPS) has been modernized for more precise applications, with the introduction of the L2C and L5 signals. However, among other effects, they are susceptible to severe ionospheric effects, particularly in the equatorial and low-latitude regions. Equatorial plasma bubbles, resulting from the combination of the ionospheric electrodynamics with plasma instability mechanisms and thermospheric coupling, may generate irregularity structures with scale sizes ranging from hundreds of kilometers to a few meters (or less). Ionospheric irregularities may cause deep amplitude fades and phase shifts to transionospheric signals. That is, they are responsible for amplitude and phase scintillation, which degrade receiver operations and may cause failures and unavailability to positioning and navigation services under extreme conditions. The objective of the present work is to analyze ionospheric scintillation effects on the L2C and L5 GPS signals, to compare their vulnerabilities with those of the L1 signal. The data used in this analysis were collected between November 2014 and March 2015, during the maximum solar activity of cycle 24 (a period of great scintillation incidence), by scintillation monitors deployed at four different sites in the Brazilian territory: Fortaleza, Presidente Prudente, Sao Jose dos Campos, and Porto Alegre. Intensity fades will be analyzed, considering different thresholds, to reveal their empirical probability distributions of scintillation occurrence, average fading occurrences and durations. The results will show that greater probabilities of strong scintillation occurrences are present in the modernized signals, reaching up to five times more events in the L5 signal in comparison with those in the legacy L1 signal. It will be shown that the L5 average fade duration is distinctly longer than the corresponding ones for the other frequencies, considering the same site, threshold, and L1 amplitude scintillation level. The results will also show that the average fade duration decreases according to the average ratio 0.6 s/3 dB within the threshold range from - 6 to - 15 dB, considering the same amplitude scintillation level and location.
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Visibilityshown
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Next Higher Units8JMKD3MGPCW/46KTFK8
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.45.35 2
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