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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/116875
Title: 
Tackling ionospheric scintillation threat to GNSS in Latin America
Author(s): 
Institution: 
  • Univ Nottingham
  • Ist Nazl Geofis & Vulcanol
  • Septentrio NV
  • Universidade Estadual Paulista (UNESP)
  • Polish Acad Sci
  • Univ Nova Gorica
  • Pildo Consulting SL
  • Consultgel Consultoria Geomat Ltda
ISSN: 
2115-7251
Sponsorship: 
  • EC Seventh Framework Program
  • EC FP7 Marie Curie Intra- European Fellowship
Abstract: 
Scintillations are rapid fluctuations in the phase and amplitude of transionospheric radio signals which are caused by small-scale plasma density irregularities in the ionosphere. In the case of the Global Navigation Satellite System (GNSS) receivers, scintillation can cause cycle slips, degrade the positioning accuracy and, when severe enough, can even lead to a complete loss of signal lock. Thus, the required levels of availability, accuracy, integrity and reliability for the GNSS applications may not be met during scintillation occurrence; this poses a major threat to a large number of modern-day GNSS-based applications. The whole of Latin America, Brazil in particular, is located in one of the regions most affected by scintillations. These effects will be exacerbated during solar maxima, the next predicted for 2013. This paper presents initial results from a research work aimed to tackle ionospheric scintillation effects for GNSS users in Latin America. This research is a part of the CIGALA (Concept for Ionospheric Scintillation Mitigation for Professional GNSS in Latin America) project, co-funded by the EC Seventh Framework Program and supervised by the GNSS Supervisory Authority (GSA), which aims to develop and test ionospheric scintillation countermeasures to be implemented in multi-frequency, multi-constellation GNSS receivers.
Issue Date: 
1-Jan-2011
Citation: 
Journal Of Space Weather And Space Climate. Les Ulis Cedex A: Edp Sciences S A, v. 1, n. 1, 9 p., 2011.
Time Duration: 
9
Publisher: 
Edp Sciences S A
Keywords: 
  • 2447: modelling and forecasting
  • 2400: ionosphere
  • 2415: equatorial ionosphere
  • 2439: ionospheric irregularities
Source: 
http://dx.doi.org/10.1051/swsc/2011005
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/116875
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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