Accuracy assessment of the GPS-based slant total electron content

The main scope of this research is to assess the ultimate accuracy that can be achieved for the slant total electron content (sTEC) estimated from dual-frequency global positioning system (GPS) observations which depends, primarily, on the calibration of the inter-frequency biases (IFB). Two differe...

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Detalles Bibliográficos
Autores principales: Brunini, Claudio Antonio, Azpilicueta, Francisco Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Astronomía
GPS
Slant total electron content (sTEC)
Inter-frequency biases (IFB)
sTEC calibration
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/138941
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-138941
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
GPS
Slant total electron content (sTEC)
Inter-frequency biases (IFB)
sTEC calibration
spellingShingle Astronomía
GPS
Slant total electron content (sTEC)
Inter-frequency biases (IFB)
sTEC calibration
Brunini, Claudio Antonio
Azpilicueta, Francisco Javier
Accuracy assessment of the GPS-based slant total electron content
topic_facet Astronomía
GPS
Slant total electron content (sTEC)
Inter-frequency biases (IFB)
sTEC calibration
description The main scope of this research is to assess the ultimate accuracy that can be achieved for the slant total electron content (sTEC) estimated from dual-frequency global positioning system (GPS) observations which depends, primarily, on the calibration of the inter-frequency biases (IFB). Two different calibration approaches are analyzed: the so-called satellite-by-satellite one, which involves levelling the carrier-phase to the code-delay GPS observations and then the IFB estimation; and the so-called arc-by-arc one, which avoids the use of code-delay observations but requires the estimation of arc-dependent biases. Two strategies are used for the analysis: the first one compares calibrated sTEC from two co-located GPS receivers that serve to assess the levelling errors; and the second one, assesses the model error using synthetic data free of calibration error, produced with a specially developed technique. The results show that the arc-by-arc calibration technique performs better than the satellite-by-satellite one for mid-latitudes, while the opposite happens for low-latitudes.
format Articulo
Articulo
author Brunini, Claudio Antonio
Azpilicueta, Francisco Javier
author_facet Brunini, Claudio Antonio
Azpilicueta, Francisco Javier
author_sort Brunini, Claudio Antonio
title Accuracy assessment of the GPS-based slant total electron content
title_short Accuracy assessment of the GPS-based slant total electron content
title_full Accuracy assessment of the GPS-based slant total electron content
title_fullStr Accuracy assessment of the GPS-based slant total electron content
title_full_unstemmed Accuracy assessment of the GPS-based slant total electron content
title_sort accuracy assessment of the gps-based slant total electron content
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/138941
work_keys_str_mv AT bruniniclaudioantonio accuracyassessmentofthegpsbasedslanttotalelectroncontent
AT azpilicuetafranciscojavier accuracyassessmentofthegpsbasedslanttotalelectroncontent
bdutipo_str Repositorios
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