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1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/44D5SJ2
Repositorysid.inpe.br/mtc-m21c/2021/03.25.18.27
Metadata Repositorysid.inpe.br/mtc-m21c/2021/03.25.18.27.12
Metadata Last Update2022:04.03.19.25.19 (UTC) administrator
Secondary KeyINPE--PRE/
Citation KeySallesVaSoSiMoMoPa:2021:TeFaCh
TitleTemporal fading characteristics at low latitude regions for GPS triple frequency users
Year2021
Access Date2024, June 16
Secondary TypePRE CN
2. Context
Author1 Salles, L. A.
2 Vani, B. C.
3 Sousasantos, J.
4 Silva, A. L. A.
5 Moares, A. O.
6 Monico, J. F. G.
7 Paula, Eurico Rodrigues de
Resume Identifier1
2
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7 8JMKD3MGP5W/3C9JH2U
Group1
2
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7 DIHPA-CGCE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Tecnológico de Aeronáutica (ITA)
2 Instituto Federal de São Paulo (IFSP)
3 Instituto Tecnológico de Aeronáutica (ITA)
4 Instituto Tecnológico de Aeronáutica (ITA)
5 Instituto de Aeronáutica e Espaço (IAE)
6 Universidade Estadual Paulista (UNESP)
7 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
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7 eurico.paula@inpe.br
Conference NameSimpósio Brasileiro de Geofísica Espacial e Aeronomia, 8 (SBGEA)
Conference LocationOnline
Date22-26 mar.
History (UTC)2021-03-25 18:27:12 :: simone -> administrator ::
2022-04-03 19:25:19 :: administrator -> simone :: 2021
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
AbstractThe ionospheric scintillation phenomenon has serious consequences on the communication systems. In particular, special attention has been given to GNSS systems with an emphasis on aeronautical applications. Scintillation causes attenuation in the amplitude and signal phase shifts, hence, its occurrence threaten the system operability, by causing loss of lock in the receiver, incorrect measurements that decreases the navigation performance and, in more severe cases, total loss of positioning. In the last decade, the GPS constellation has been modernized with the introduction of new codes/frequencies for more accurate operation through the L2C and L5 frequencies. The motivation for this modernization is the use of GPS for critical applications involving civil aviation and defense systems. The aim of this study is to perform a comparative analysis of the effects of ionospheric scintillation on GPS signals in order to characterize the fading effects on the received signal amplitude at the three frequencies, L1, L2C and L5. Data used in this analysis was collected by 50Hz scintillation monitors in four cities along the Brazilian territory: Fortaleza, Presidente Prudente, Sao Jos´e dos Campos and Porto Alegre. The analysis period was between November 2014 and March 2015, during the maximum solar activity of cycle 24. In the analysis, a particular focus was given to measure the frequency of occurrence and the typical duration of the fading events in the L2C and L5 signals in comparison to the L1 (legacy signal). Three fading threshold were chosen -9 dB, -12 dB, and -15 dB. The number of fading events in all locations increased substantially, reaching up to 200% more occurrences in some cases. The results confirm previous works in the literature showing that L2C and L5 signals are more vulnerable to availability issues due to the occurrence of scintillation.
AreaCEA
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Languageen
User Groupsimone
Visibilityshown
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/46KTFK8
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
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