| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/44D5G82 | |||
| Repository | sid.inpe.br/mtc-m21c/2021/03.25.16.21 | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/03.25.16.21.06 | |||
| Metadata Last Update | 2022:04.03.19.25.18 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | MoraesCoVaSaPaAfMo:2021:CoStMo | |||
| Title | Contributions on the Statistical Modeling of Ionospheric Scintillation in the Brazilian Region  | |||
| Year | 2021 | |||
| Access Date | 2024, July 26 | |||
| Secondary Type | PRE CN | |||
| 2. Context | ||||
| Author | 1 Moraes, A. O. 2 Costa, E. 3 Vani, B. C. 4 Salles, L. A. 5 Paula, Eurico Rodrigues de 6 Affonso, B. J. 7 Monico, J. F. G. | |||
| Resume Identifier | 1 2 3 4 5 8JMKD3MGP5W/3C9JH2U | |||
| Group | 1 2 3 4 5 DIHPA-CGCE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto de Aeronáutica e Espaço (IAE) 2 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio) 3 Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP) 4 Instituto Tecnológico de Aeronáutica (ITA) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Embraer 7 Universidade Estadual Paulista (UNESP) | |||
| Author e-Mail Address | 1 2 3 4 5 eurico.paula@inpe.br | |||
| Conference Name | Simpósio Brasileiro de Geofísica Espacial e Aeronomia, 8 (SBGEA) | |||
| Conference Location | Online | |||
| Date | 22-26 mar. | |||
| History (UTC) | 2021-03-25 16:21:06 :: simone -> administrator :: 2022-04-03 19:25:18 :: administrator -> simone :: 2021 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Ionospheric scintillation is the term used to indicate amplitude and phase variations of radio signals that propagate through regions of low electronic density in the ionosphere (plasma bubbles, populated by irregularities with a wide range of scale sizes). This phenomenon occurs daily, especially in the years of high solar activity, around the geomagnetic equator and low latitude regions, during the summer solstice and after sunset, affecting radio signal users. In particular, ionospheric scintillation presents great liability to the performance of GPS receivers. It is responsible for significant degradation in the accuracy of position estimation. Rapid phase variations may be interpreted as a Doppler shift in the GPS signal, resulting in a loss of phase lock in severe cases. Furthermore, amplitude fades can cause the signalto-noise ratio to drop below the threshold required for receiver operation. Under extremes scintillation scenarios, the receiver may lose lock of multiple channels and, depending on its severity, a full interruption of the receiver operation may occur. Because availability and integrity of GNSS services may be drastically affected by scintillation, this work analyzes GPS scintillation data recorded during the solar maximum of cycle 24 in the Brazilian cities of Fortaleza, Presidente Prudente, Sao Jos´e dos Campos and Porto Alegre. All these stations are located near or around the southern crest of the Equatorial Ionization Anomaly. The analysis has been performed aiming at generating a series of models and approximations to better characterize the occurrence of scintillation in Brazil. The goal is to identify situations and understand the scenarios where the worst scintillation cases occur. This assessment is intended to support research regarding mitigation techniques and strategies for augmentation systems operation under equatorial and low latitude regions. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Contributions on the... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||