%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ETL868
%@archivingpolicy denypublisher denyfinaldraft
%X The first direct observations of Global Positioning System (GPS) L1 (1.57542 GHz) carrier-to-noise ratio degradation due to a solar radio burst are presented for an event that occurred on 7 September 2005. Concurrent carrier-to-noise ratio data from GPS satellites are available from receivers at Arecibo Observatory, Puerto Rico; San Juan, Puerto Rico; and also from Anderson, South Carolina, United States. The right-hand circularly polarized (RHCP) signals from this solar radio burst caused a corresponding decrease in the carrier-to-noise ratio of about 2.3 dB across all visible satellites. The maximum solar radio burst power associated with this event was 8700 solar flux units (1 SFU = 10−22 W/m2/Hz) RHCP at 1600 MHz. Direct observations of GPS semicodeless L2 carrier-to-noise ratio degradation from receivers in Brazil are also presented for a solar radio burst that occurred on 28 October 2003. The maximum degradation at GPS L1 was about 3.0 dB, and a degradation of 10.0 dB was observed on the semicodeless L2 signal. Scaling to historic solar radio burst records suggests that GPS L1 receivers could fail to produce a navigation solution and that semicodeless L1/L2 receivers will fail.
%8 Oct.
%N 10
%T Observed solar radio burst effects on GPS/Wide Area Augmentation System carrier-to-noise ratio
%@secondarytype PRE PI
%K GPS, solar flare, solar radio burst.
%@usergroup administrator
%@usergroup banon
%@usergroup simone
%@group
%@group
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%@group DAE-INPE-MCT-BR
%3 swe172.pdf
%@secondarykey INPE--PRE/
%@issn 1539-4956
%2 sid.inpe.br/mtc-m17@80/2006/12.07.13.00.28
%@affiliation School of Electrical and Computer Engineering, Cornell University
%@affiliation School of Electrical and Computer Engineering, Cornell University
%@affiliation Center for Solar-Terrestrial Research, New Jersey Institute of Technology
%@affiliation Center for Solar-Terrestrial Research, New Jersey Institute of Technology
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Arecibo Observatory, National Astronomy and Ionosphere Center
%B Space Weather
%@versiontype publisher
%P  S10006
%4 sid.inpe.br/mtc-m17@80/2006/12.07.13.00
%@documentstage not transferred
%D 2006
%V 4
%@doi 10.1029/2006SW000254
%A Cerruti, Alessandro P.,
%A Kintner, Paul M.,
%A Gary, Dale E.,
%A Lanzerotti, Louis J.,
%A Paula, Eurico Rodrigues de,
%A Vo, Hien B.,
%@dissemination WEBSCI
%@area CEA