Contributions to radio frequency interference detection and mitigation in Earth observation

Radio Frequency Interference (RFI) is the most common problem for electronic measuring systems. The presence of those electromagnetic waves can harm the measurements taken from very sensitive instruments, like microwave radiometry or navigation systems. The accuracy and precision are compromised. A...

Descripción completa

Detalles Bibliográficos
Autor: Forte Véliz, Giuseppe Francesco
Tipo de recurso: tesis doctoral
Fecha de publicación:2014
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:2117/95601
Acceso en línea:https://hdl.handle.net/2117/95601
https://dx.doi.org/10.5821/dissertation-2117-95601
Access Level:acceso abierto
Palabra clave:Àrees temàtiques de la UPC::Enginyeria dels materials
id ES_7ffebeca4cb2ee5db3f29c6df5df1a36
oai_identifier_str oai:upcommons.upc.edu:2117/95601
network_acronym_str ES
network_name_str España
repository_id_str
spelling Contributions to radio frequency interference detection and mitigation in Earth observationForte Véliz, Giuseppe FrancescoÀrees temàtiques de la UPC::Enginyeria dels materialsRadio Frequency Interference (RFI) is the most common problem for electronic measuring systems. The presence of those electromagnetic waves can harm the measurements taken from very sensitive instruments, like microwave radiometry or navigation systems. The accuracy and precision are compromised. A first step to mitigate those unwanted effects is to study the RFI properties. Different algorithms have been proposed to detect the interferences, but there is no method that works in all cases. The scope of this dissertation is the design, implementation and testing of different detection and mitigation methods in real-time. Performed surveys and characterization of RFI sources provide a great contribution to optimize the current mitigation techniques. In the mitigation area, two real-time hardware systems have been implemented: a wavelet denoise system to model the RFI and mitigate it, and a circuit to allow a navigation system to continue operational under the effects of a jammer.El problema més comú en els sistemes electrònics de mesura són les interferències electromagnètiques. La presència d'aquests senyals pot danyar les mesures preses per instruments molt sensibles, com radiòmetres de microones o sistemes de navegació. L'exactitud i precisió es veuen compromeses. El primer pas per mitigar aquests efectes no desitjats és estudiar les propietats de les interferències electromagnètiques. Diversos algoritmes han estat proposats per detectar interferències, però no hi ha mètode que funcioni bé en tots els casos . Aquest treball comprèn el disseny, implementació i comprovació de diferents mètodes de detecció i mitigació en temps real. Els estudis i caracterització de les fonts d'interferències són una gran contribució per a optimitzar les tècniques de mitigació actuals. En el tema de mitigació, dos sistemes en temps real han estat implementats en hardware: un sistema que utilitza wavelets per modelar la interferència i mitigar-la, i un circuit que permet a un sistema de navegació continuar funcionant sota els efectes d'un interferidor comercial ( jammer ).Universitat Politècnica de CatalunyaCamps Carmona, Adriano JoséVall-Llossera Ferran, Mercedes Magdalena20142014-06-2620152015-01-27doctoral thesishttp://purl.org/coar/resource_type/c_db06VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/doctoralThesisapplication/pdfhttps://hdl.handle.net/2117/95601https://dx.doi.org/10.5821/dissertation-2117-95601reponame: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:2117/956012026-05-27T15:37:01Z
dc.title.none.fl_str_mv Contributions to radio frequency interference detection and mitigation in Earth observation
title Contributions to radio frequency interference detection and mitigation in Earth observation
spellingShingle Contributions to radio frequency interference detection and mitigation in Earth observation
Forte Véliz, Giuseppe Francesco
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Contributions to radio frequency interference detection and mitigation in Earth observation
title_full Contributions to radio frequency interference detection and mitigation in Earth observation
title_fullStr Contributions to radio frequency interference detection and mitigation in Earth observation
title_full_unstemmed Contributions to radio frequency interference detection and mitigation in Earth observation
title_sort Contributions to radio frequency interference detection and mitigation in Earth observation
dc.creator.none.fl_str_mv Forte Véliz, Giuseppe Francesco
author Forte Véliz, Giuseppe Francesco
author_facet Forte Véliz, Giuseppe Francesco
author_role author
dc.contributor.none.fl_str_mv Camps Carmona, Adriano José
Vall-Llossera Ferran, Mercedes Magdalena
dc.subject.none.fl_str_mv Àrees temàtiques de la UPC::Enginyeria dels materials
topic Àrees temàtiques de la UPC::Enginyeria dels materials
description Radio Frequency Interference (RFI) is the most common problem for electronic measuring systems. The presence of those electromagnetic waves can harm the measurements taken from very sensitive instruments, like microwave radiometry or navigation systems. The accuracy and precision are compromised. A first step to mitigate those unwanted effects is to study the RFI properties. Different algorithms have been proposed to detect the interferences, but there is no method that works in all cases. The scope of this dissertation is the design, implementation and testing of different detection and mitigation methods in real-time. Performed surveys and characterization of RFI sources provide a great contribution to optimize the current mitigation techniques. In the mitigation area, two real-time hardware systems have been implemented: a wavelet denoise system to model the RFI and mitigate it, and a circuit to allow a navigation system to continue operational under the effects of a jammer.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-06-26
2015
2015-01-27
dc.type.none.fl_str_mv doctoral thesis
http://purl.org/coar/resource_type/c_db06
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/95601
https://dx.doi.org/10.5821/dissertation-2117-95601
url https://hdl.handle.net/2117/95601
https://dx.doi.org/10.5821/dissertation-2117-95601
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 Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
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_ 1869411865476464640
score 15,301603

Similares en LA Referencia