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Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems

Bordoni, Federica und Younis, Marwan und Krieger, Gerhard (2012) Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems. IEEE Transactions on Geoscience and Remote Sensing, 50 (2), Seiten 617-629. DOI: 10.1109/TGRS.2011.2161672. ISSN 0196-2892.

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Kurzfassung

The current generation of spaceborne Synthetic Aperture Radar (SAR) systems suffers from a trade-off between the achievable spatial resolution and swath width. This has motivated intensive research both on more flexible SAR systems, using multiple transmit/receive channels, and on techniques for removing the ambiguities. Among these techniques, the Azimuth Phase Coding (APC), recently proposed to suppress range ambiguities in conventional SAR systems, stands out for its negligible implementation complexity and its effectiveness for point and distributed ambiguities. This paper investigates the possibility of applying the APC technique to the new, forthcoming generation of multichannel SAR systems, based on Digital Beamforming on receive. The extension of APC to multichannel SAR systems is mathematically described. Specific merit figures are defined to quantify the APC performance. A numerical analysis is developed to characterize the influence on the APC behaviors of the main SAR system parameters. Finally, an example of APC performance is provided, by considering two multichannel SAR systems based on a planar and a reflector antenna.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Ã�©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Titel:Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Bordoni, FedericaNICHT SPEZIFIZIERT
Younis, MarwanNICHT SPEZIFIZIERT
Krieger, GerhardNICHT SPEZIFIZIERT
Datum:Februar 2012
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:50
DOI :10.1109/TGRS.2011.2161672
Seitenbereich:Seiten 617-629
ISSN:0196-2892
Status:veröffentlicht
Stichwörter:Synthetic Aperture Radar (SAR), Digital Beam-Forming (DBF), Azimuth Phase Coding (APC)
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Entwicklung eines Mini-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Dr. Federica Bordoni
Hinterlegt am:27 Feb 2012 13:06
Letzte Änderung:12 Dez 2013 21:37

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