A state-space approach for tracking doppler shifts in radio inter-satellite links

Detalhes bibliográficos
Autor(a) principal: Pedrosa, Pedro
Data de Publicação: 2021
Outros Autores: Castanheira, Daniel, Silva, Adão, Dinis, Rui, Gameiro, Atílio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/39181
Resumo: The high Doppler effects in satellite communications make the equivalent channels fast varying, which leads to channel estimation difficulties and the need for high channel estimation overheads. In this paper we propose a state-space approach for tracking channel variations for satellite links with high Doppler frequency shifts. We consider the communication between satellite links where a multi-antenna receiving satellite is connected to several transmitting satellites, which can have substantially different Doppler drifts. The proposed channel tracking technique follows the individual Doppler drifts for the different satellites. Finally, our performance results indicate that the proposed channel tracking is able to cope with strong Doppler drifts, without the need for high channel estimation overheads, making it a promising technique for future systems using satellite mega-constellations.
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spelling A state-space approach for tracking doppler shifts in radio inter-satellite linksChannel trackingDoppler effectsExtended Kalman filtersSatellite communicationsThe high Doppler effects in satellite communications make the equivalent channels fast varying, which leads to channel estimation difficulties and the need for high channel estimation overheads. In this paper we propose a state-space approach for tracking channel variations for satellite links with high Doppler frequency shifts. We consider the communication between satellite links where a multi-antenna receiving satellite is connected to several transmitting satellites, which can have substantially different Doppler drifts. The proposed channel tracking technique follows the individual Doppler drifts for the different satellites. Finally, our performance results indicate that the proposed channel tracking is able to cope with strong Doppler drifts, without the need for high channel estimation overheads, making it a promising technique for future systems using satellite mega-constellations.Institute of Electrical and Electronics Engineers2023-08-07T17:48:34Z2021-07-26T00:00:00Z2021-07-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/39181eng10.1109/ACCESS.2021.3098562Pedrosa, PedroCastanheira, DanielSilva, AdãoDinis, RuiGameiro, Atílioinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:16:02Zoai:ria.ua.pt:10773/39181Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:09:12.980134Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv A state-space approach for tracking doppler shifts in radio inter-satellite links
title A state-space approach for tracking doppler shifts in radio inter-satellite links
spellingShingle A state-space approach for tracking doppler shifts in radio inter-satellite links
Pedrosa, Pedro
Channel tracking
Doppler effects
Extended Kalman filters
Satellite communications
title_short A state-space approach for tracking doppler shifts in radio inter-satellite links
title_full A state-space approach for tracking doppler shifts in radio inter-satellite links
title_fullStr A state-space approach for tracking doppler shifts in radio inter-satellite links
title_full_unstemmed A state-space approach for tracking doppler shifts in radio inter-satellite links
title_sort A state-space approach for tracking doppler shifts in radio inter-satellite links
author Pedrosa, Pedro
author_facet Pedrosa, Pedro
Castanheira, Daniel
Silva, Adão
Dinis, Rui
Gameiro, Atílio
author_role author
author2 Castanheira, Daniel
Silva, Adão
Dinis, Rui
Gameiro, Atílio
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pedrosa, Pedro
Castanheira, Daniel
Silva, Adão
Dinis, Rui
Gameiro, Atílio
dc.subject.por.fl_str_mv Channel tracking
Doppler effects
Extended Kalman filters
Satellite communications
topic Channel tracking
Doppler effects
Extended Kalman filters
Satellite communications
description The high Doppler effects in satellite communications make the equivalent channels fast varying, which leads to channel estimation difficulties and the need for high channel estimation overheads. In this paper we propose a state-space approach for tracking channel variations for satellite links with high Doppler frequency shifts. We consider the communication between satellite links where a multi-antenna receiving satellite is connected to several transmitting satellites, which can have substantially different Doppler drifts. The proposed channel tracking technique follows the individual Doppler drifts for the different satellites. Finally, our performance results indicate that the proposed channel tracking is able to cope with strong Doppler drifts, without the need for high channel estimation overheads, making it a promising technique for future systems using satellite mega-constellations.
publishDate 2021
dc.date.none.fl_str_mv 2021-07-26T00:00:00Z
2021-07-26
2023-08-07T17:48:34Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/39181
url http://hdl.handle.net/10773/39181
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1109/ACCESS.2021.3098562
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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