Correlation denormalization in interferometric or polarametric radiometers: a unified approach

This paper presents a general analysis of correlation measurements in an interferometer or a radiometer based on noise injection and/or switching and measurement of normalized correlations (e.g., imaging synthetic aperture or polarimetric radiometers). A compact unifying notation for denormalizing t...

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Detalles Bibliográficos
Autores: Colliander, Andreas, Torres Torres, Francisco|||0000-0003-1160-6350, Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/2642
Acceso en línea:https://hdl.handle.net/2117/2642
https://dx.doi.org/10.1109/TRG.2008.2003247
Access Level:acceso abierto
Palabra clave:Radiometers
Denormalization
Interferometric radiometry
Microwave image radiometer using aperture synthesis
Polarametric radiometer
Synthetic aperture radiometry
MIRAS
Radiòmetres
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
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spelling Correlation denormalization in interferometric or polarametric radiometers: a unified approachColliander, AndreasTorres Torres, Francisco|||0000-0003-1160-6350Corbella Sanahuja, Ignasi|||0000-0001-5598-7955RadiometersDenormalizationInterferometric radiometryMicrowave image radiometer using aperture synthesisPolarametric radiometerSynthetic aperture radiometryMIRASRadiòmetresÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::TeledeteccióThis paper presents a general analysis of correlation measurements in an interferometer or a radiometer based on noise injection and/or switching and measurement of normalized correlations (e.g., imaging synthetic aperture or polarimetric radiometers). A compact unifying notation for denormalizing the measured normalized correlations in the presence of noise injection in one or both of the receiving channels is presented. Technological limitations are also assessed by evaluating the effect of associated approximations. Finally, the approach is validated by experimental results of the measurement and calibration of related front-end nonidealities, namely, the finite isolation of the front-end switch. The methods presented in this paper are illustrated by a thorough analysis of the so-called mixed baselines of microwave imaging radiometer using aperture synthesis, which refer to those baselines which are formed between the regular receivers (light-weight cost-efficient front-end) and the reference radiometers. These baselines require special attention, since the reference radiometers are noise-injection radiometers, which inject noise to the measured signal, whereas the regular receivers are total power receivers.Peer ReviewedIEEE20092009-02-0120092009-03-09journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/2642https://dx.doi.org/10.1109/TRG.2008.2003247reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/26422026-05-27T15:37:01Z
dc.title.none.fl_str_mv Correlation denormalization in interferometric or polarametric radiometers: a unified approach
title Correlation denormalization in interferometric or polarametric radiometers: a unified approach
spellingShingle Correlation denormalization in interferometric or polarametric radiometers: a unified approach
Colliander, Andreas
Radiometers
Denormalization
Interferometric radiometry
Microwave image radiometer using aperture synthesis
Polarametric radiometer
Synthetic aperture radiometry
MIRAS
Radiòmetres
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
title_short Correlation denormalization in interferometric or polarametric radiometers: a unified approach
title_full Correlation denormalization in interferometric or polarametric radiometers: a unified approach
title_fullStr Correlation denormalization in interferometric or polarametric radiometers: a unified approach
title_full_unstemmed Correlation denormalization in interferometric or polarametric radiometers: a unified approach
title_sort Correlation denormalization in interferometric or polarametric radiometers: a unified approach
dc.creator.none.fl_str_mv Colliander, Andreas
Torres Torres, Francisco|||0000-0003-1160-6350
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author Colliander, Andreas
author_facet Colliander, Andreas
Torres Torres, Francisco|||0000-0003-1160-6350
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author_role author
author2 Torres Torres, Francisco|||0000-0003-1160-6350
Corbella Sanahuja, Ignasi|||0000-0001-5598-7955
author2_role author
author
dc.subject.none.fl_str_mv Radiometers
Denormalization
Interferometric radiometry
Microwave image radiometer using aperture synthesis
Polarametric radiometer
Synthetic aperture radiometry
MIRAS
Radiòmetres
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
topic Radiometers
Denormalization
Interferometric radiometry
Microwave image radiometer using aperture synthesis
Polarametric radiometer
Synthetic aperture radiometry
MIRAS
Radiòmetres
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
description This paper presents a general analysis of correlation measurements in an interferometer or a radiometer based on noise injection and/or switching and measurement of normalized correlations (e.g., imaging synthetic aperture or polarimetric radiometers). A compact unifying notation for denormalizing the measured normalized correlations in the presence of noise injection in one or both of the receiving channels is presented. Technological limitations are also assessed by evaluating the effect of associated approximations. Finally, the approach is validated by experimental results of the measurement and calibration of related front-end nonidealities, namely, the finite isolation of the front-end switch. The methods presented in this paper are illustrated by a thorough analysis of the so-called mixed baselines of microwave imaging radiometer using aperture synthesis, which refer to those baselines which are formed between the regular receivers (light-weight cost-efficient front-end) and the reference radiometers. These baselines require special attention, since the reference radiometers are noise-injection radiometers, which inject noise to the measured signal, whereas the regular receivers are total power receivers.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-02-01
2009
2009-03-09
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/2642
https://dx.doi.org/10.1109/TRG.2008.2003247
url https://hdl.handle.net/2117/2642
https://dx.doi.org/10.1109/TRG.2008.2003247
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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