Calibration errors on experimental slant total electron content (TEC) determined with GPS
- Autores
- Ciraolo, L.; Azpilicueta, Francisco Javier; Brunini, Claudio Antonio; Meza, Amalia Margarita; Radicella, Sandro M.
- Año de publicación
- 2006
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Global Positioning System (GPS) has become a powerful tool for ionospheric studies. In addition, ionospheric corrections are necessary for the augmentation systems required for Global Navigation Satellite Systems (GNSS) use. Dual-frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observables related to the slant total electron content (sTEC) along the satellite-receiver line-of-sight (LoS). This observable is affected by inter-frequency biases [IFB; often called differential code biases (DCB)] due to the transmitting and the receiving hardware. These biases must be estimated and eliminated from the data in order to calibrate the experimental sTEC obtained from GPS observations. Based on the analysis of single differences of the ionospheric observations obtained from pairs of co-located dual-frequency GPS receivers, this research addresses two major issues: (1) assessing the errors translated from the code-delay to the carrier-phase ionospheric observable by the so-called levelling process, applied to reduce carrier-phase ambiguities from the data; and (2) assessing the short-term stability of receiver IFB. The conclusions achieved are: (1) the levelled carrier-phase ionospheric observable is affected by a systematic error, produced by code-delay multi-path through the levelling procedure; and (2) receiver IFB may experience significant changes during 1 day. The magnitude of both effects depends on the receiver/antenna configuration. Levelling errors found in this research vary from 1.4 total electron content units (TECU) to 5.3 TECU. In addition, intra-day vaiations of code-delay receiver IFB ranging from 1.4 to 8.8 TECU were detected.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Física
Astronomía
Total electron content
TEC
GPS
Inter-frequency bias
Differential code bias
DCB
Levelling carrier to code TEC - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/133670
Ver los metadatos del registro completo
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Calibration errors on experimental slant total electron content (TEC) determined with GPSCiraolo, L.Azpilicueta, Francisco JavierBrunini, Claudio AntonioMeza, Amalia MargaritaRadicella, Sandro M.FísicaAstronomíaTotal electron contentTECGPSInter-frequency biasDifferential code biasDCBLevelling carrier to code TECThe Global Positioning System (GPS) has become a powerful tool for ionospheric studies. In addition, ionospheric corrections are necessary for the augmentation systems required for Global Navigation Satellite Systems (GNSS) use. Dual-frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observables related to the slant total electron content (sTEC) along the satellite-receiver line-of-sight (LoS). This observable is affected by inter-frequency biases [IFB; often called differential code biases (DCB)] due to the transmitting and the receiving hardware. These biases must be estimated and eliminated from the data in order to calibrate the experimental sTEC obtained from GPS observations. Based on the analysis of single differences of the ionospheric observations obtained from pairs of co-located dual-frequency GPS receivers, this research addresses two major issues: (1) assessing the errors translated from the code-delay to the carrier-phase ionospheric observable by the so-called levelling process, applied to reduce carrier-phase ambiguities from the data; and (2) assessing the short-term stability of receiver IFB. The conclusions achieved are: (1) the levelled carrier-phase ionospheric observable is affected by a systematic error, produced by code-delay multi-path through the levelling procedure; and (2) receiver IFB may experience significant changes during 1 day. The magnitude of both effects depends on the receiver/antenna configuration. Levelling errors found in this research vary from 1.4 total electron content units (TECU) to 5.3 TECU. In addition, intra-day vaiations of code-delay receiver IFB ranging from 1.4 to 8.8 TECU were detected.Facultad de Ciencias Astronómicas y Geofísicas2006-09-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf111-120http://sedici.unlp.edu.ar/handle/10915/133670enginfo:eu-repo/semantics/altIdentifier/issn/0949-7714info:eu-repo/semantics/altIdentifier/issn/1432-1394info:eu-repo/semantics/altIdentifier/doi/10.1007/s00190-006-0093-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:47Zoai:sedici.unlp.edu.ar:10915/133670Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:47.419SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
title |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
spellingShingle |
Calibration errors on experimental slant total electron content (TEC) determined with GPS Ciraolo, L. Física Astronomía Total electron content TEC GPS Inter-frequency bias Differential code bias DCB Levelling carrier to code TEC |
title_short |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
title_full |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
title_fullStr |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
title_full_unstemmed |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
title_sort |
Calibration errors on experimental slant total electron content (TEC) determined with GPS |
dc.creator.none.fl_str_mv |
Ciraolo, L. Azpilicueta, Francisco Javier Brunini, Claudio Antonio Meza, Amalia Margarita Radicella, Sandro M. |
author |
Ciraolo, L. |
author_facet |
Ciraolo, L. Azpilicueta, Francisco Javier Brunini, Claudio Antonio Meza, Amalia Margarita Radicella, Sandro M. |
author_role |
author |
author2 |
Azpilicueta, Francisco Javier Brunini, Claudio Antonio Meza, Amalia Margarita Radicella, Sandro M. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Física Astronomía Total electron content TEC GPS Inter-frequency bias Differential code bias DCB Levelling carrier to code TEC |
topic |
Física Astronomía Total electron content TEC GPS Inter-frequency bias Differential code bias DCB Levelling carrier to code TEC |
dc.description.none.fl_txt_mv |
The Global Positioning System (GPS) has become a powerful tool for ionospheric studies. In addition, ionospheric corrections are necessary for the augmentation systems required for Global Navigation Satellite Systems (GNSS) use. Dual-frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observables related to the slant total electron content (sTEC) along the satellite-receiver line-of-sight (LoS). This observable is affected by inter-frequency biases [IFB; often called differential code biases (DCB)] due to the transmitting and the receiving hardware. These biases must be estimated and eliminated from the data in order to calibrate the experimental sTEC obtained from GPS observations. Based on the analysis of single differences of the ionospheric observations obtained from pairs of co-located dual-frequency GPS receivers, this research addresses two major issues: (1) assessing the errors translated from the code-delay to the carrier-phase ionospheric observable by the so-called levelling process, applied to reduce carrier-phase ambiguities from the data; and (2) assessing the short-term stability of receiver IFB. The conclusions achieved are: (1) the levelled carrier-phase ionospheric observable is affected by a systematic error, produced by code-delay multi-path through the levelling procedure; and (2) receiver IFB may experience significant changes during 1 day. The magnitude of both effects depends on the receiver/antenna configuration. Levelling errors found in this research vary from 1.4 total electron content units (TECU) to 5.3 TECU. In addition, intra-day vaiations of code-delay receiver IFB ranging from 1.4 to 8.8 TECU were detected. Facultad de Ciencias Astronómicas y Geofísicas |
description |
The Global Positioning System (GPS) has become a powerful tool for ionospheric studies. In addition, ionospheric corrections are necessary for the augmentation systems required for Global Navigation Satellite Systems (GNSS) use. Dual-frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observables related to the slant total electron content (sTEC) along the satellite-receiver line-of-sight (LoS). This observable is affected by inter-frequency biases [IFB; often called differential code biases (DCB)] due to the transmitting and the receiving hardware. These biases must be estimated and eliminated from the data in order to calibrate the experimental sTEC obtained from GPS observations. Based on the analysis of single differences of the ionospheric observations obtained from pairs of co-located dual-frequency GPS receivers, this research addresses two major issues: (1) assessing the errors translated from the code-delay to the carrier-phase ionospheric observable by the so-called levelling process, applied to reduce carrier-phase ambiguities from the data; and (2) assessing the short-term stability of receiver IFB. The conclusions achieved are: (1) the levelled carrier-phase ionospheric observable is affected by a systematic error, produced by code-delay multi-path through the levelling procedure; and (2) receiver IFB may experience significant changes during 1 day. The magnitude of both effects depends on the receiver/antenna configuration. Levelling errors found in this research vary from 1.4 total electron content units (TECU) to 5.3 TECU. In addition, intra-day vaiations of code-delay receiver IFB ranging from 1.4 to 8.8 TECU were detected. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-09-14 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/133670 |
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dc.language.none.fl_str_mv |
eng |
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openAccess |
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