Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1

: Global Navigation Satellite System (GNSS) reflected signals can be used to remotely sense the Earth’s surface, known as GNSS reflectometry (GNSS-R). The GNSS-R technique has been applied to numerous areas, such as the retrieval of wind speed, and the detection of Earth surface objects. This work p...

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Detalhes bibliográficos
Autores: Hu, Changjiang, Benson, Craig, Hyuk, Park|||0000-0003-0031-0802, Camps Carmona, Adriano José|||0000-0002-9514-4992, Qiao, Li, Rizos, Chris
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/180847
Acesso em linha:https://hdl.handle.net/2117/180847
https://dx.doi.org/10.3390/rs11192327
Access Level:acceso abierto
Palavra-chave:Global Positioning System
Doppler navigation
Doppler radar
GNSS reflectometry
delay Doppler map
target detection
Sistema de posicionament global
Radar Doppler
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
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oai_identifier_str oai:upcommons.upc.edu:2117/180847
network_acronym_str ES
network_name_str España
repository_id_str
spelling Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1Hu, ChangjiangBenson, CraigHyuk, Park|||0000-0003-0031-0802Camps Carmona, Adriano José|||0000-0002-9514-4992Qiao, LiRizos, ChrisGlobal Positioning SystemDoppler navigationDoppler radarGNSS reflectometrydelay Doppler maptarget detectionSistema de posicionament globalRadar DopplerÀrees temàtiques de la UPC::Enginyeria de la telecomunicació: Global Navigation Satellite System (GNSS) reflected signals can be used to remotely sense the Earth’s surface, known as GNSS reflectometry (GNSS-R). The GNSS-R technique has been applied to numerous areas, such as the retrieval of wind speed, and the detection of Earth surface objects. This work proposes a new application of GNSS-R, namely to detect objects above the Earth’s surface, such as low Earth orbit (LEO) satellites. To discuss its feasibility, 14 delay Doppler maps (DDMs) are first presented which contain unusually bright reflected signals as delays shorter than the specular reflection point over the Earth’s surface. Then, seven possible causes of these anomalies are analysed, reaching the conclusion that the anomalies are likely due to the signals being reflected from objects above the Earth’s surface. Next, the positions of the objects are calculated using the delay and Doppler information, and an appropriate geometry assumption. After that, suspect satellite objects are searched in the satellite database from Union of Concerned Scientists (UCS). Finally, three objects have been found to match the delay and Doppler conditions. In the absence of other reasons for these anomalies, GNSS-R could potentially be used to detect some objects above the Earth’s surface.Peer ReviewedMultidisciplinary Digital Publishing Institute (MDPI)20192019-10-0720202020-03-23journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/180847https://dx.doi.org/10.3390/rs11192327reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1808472026-05-27T15:37:01Z
dc.title.none.fl_str_mv Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
title Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
spellingShingle Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
Hu, Changjiang
Global Positioning System
Doppler navigation
Doppler radar
GNSS reflectometry
delay Doppler map
target detection
Sistema de posicionament global
Radar Doppler
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
title_short Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
title_full Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
title_fullStr Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
title_full_unstemmed Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
title_sort Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1
dc.creator.none.fl_str_mv Hu, Changjiang
Benson, Craig
Hyuk, Park|||0000-0003-0031-0802
Camps Carmona, Adriano José|||0000-0002-9514-4992
Qiao, Li
Rizos, Chris
author Hu, Changjiang
author_facet Hu, Changjiang
Benson, Craig
Hyuk, Park|||0000-0003-0031-0802
Camps Carmona, Adriano José|||0000-0002-9514-4992
Qiao, Li
Rizos, Chris
author_role author
author2 Benson, Craig
Hyuk, Park|||0000-0003-0031-0802
Camps Carmona, Adriano José|||0000-0002-9514-4992
Qiao, Li
Rizos, Chris
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Global Positioning System
Doppler navigation
Doppler radar
GNSS reflectometry
delay Doppler map
target detection
Sistema de posicionament global
Radar Doppler
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
topic Global Positioning System
Doppler navigation
Doppler radar
GNSS reflectometry
delay Doppler map
target detection
Sistema de posicionament global
Radar Doppler
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
description : Global Navigation Satellite System (GNSS) reflected signals can be used to remotely sense the Earth’s surface, known as GNSS reflectometry (GNSS-R). The GNSS-R technique has been applied to numerous areas, such as the retrieval of wind speed, and the detection of Earth surface objects. This work proposes a new application of GNSS-R, namely to detect objects above the Earth’s surface, such as low Earth orbit (LEO) satellites. To discuss its feasibility, 14 delay Doppler maps (DDMs) are first presented which contain unusually bright reflected signals as delays shorter than the specular reflection point over the Earth’s surface. Then, seven possible causes of these anomalies are analysed, reaching the conclusion that the anomalies are likely due to the signals being reflected from objects above the Earth’s surface. Next, the positions of the objects are calculated using the delay and Doppler information, and an appropriate geometry assumption. After that, suspect satellite objects are searched in the satellite database from Union of Concerned Scientists (UCS). Finally, three objects have been found to match the delay and Doppler conditions. In the absence of other reasons for these anomalies, GNSS-R could potentially be used to detect some objects above the Earth’s surface.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-10-07
2020
2020-03-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/180847
https://dx.doi.org/10.3390/rs11192327
url https://hdl.handle.net/2117/180847
https://dx.doi.org/10.3390/rs11192327
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
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
_version_ 1869403742661509120
score 15,301603

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