Huber, Sigurd und Younis, Marwan und Krieger, Gerhard und Patyuchenko, Anton und Moreira, Alberto (2012) Spaceborne Reflector SAR Systems with Digital Beamforming. IEEE Transactions on Aerospace and Electronic Systems, 48 (4), Seiten 3473-3493. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/taes.2012.6324728. ISSN 0018-9251.
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Kurzfassung
Spaceborne Synthetic Aperture Radar (SAR) imaging enters an era where increasingly short revisit times, or large swath widths, respectively, and high spatial resolutions are requested. These requirements impose contradicting constraints on conventional SAR systems using analog beamforming technology. The development for future radar satellites is therefore towards digital beamforming (DBF) systems where the analogous receiver hardware is replaced by digital components. Concerning the SAR antenna the innovative concept of a parabolic mesh reflector in conjunction with a digital feed array is becoming a promising architecture for this new SAR system generation. These antennas, already a mature technique for communication satellites, have the potential to outperform planar array antennas in terms of gain at a moderate hardware effort. This article provides a hardware concept study based on a design in X-band. Focus is put on digital beamforming algorithms adopted to the SAR case and important performance figures are derived.
elib-URL des Eintrags: | https://elib.dlr.de/69906/ | ||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
Titel: | Spaceborne Reflector SAR Systems with Digital Beamforming | ||||||||||||||||||||||||
Autoren: |
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Datum: | 8 Oktober 2012 | ||||||||||||||||||||||||
Erschienen in: | IEEE Transactions on Aerospace and Electronic Systems | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||
Band: | 48 | ||||||||||||||||||||||||
DOI: | 10.1109/taes.2012.6324728 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 3473-3493 | ||||||||||||||||||||||||
Verlag: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||||||||
ISSN: | 0018-9251 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | DBF, reflector antennas, SAR | ||||||||||||||||||||||||
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 hochauflösende Fernerkundungsverfahreen (alt) | ||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte | ||||||||||||||||||||||||
Hinterlegt von: | Huber, Sigurd | ||||||||||||||||||||||||
Hinterlegt am: | 30 Mai 2011 12:05 | ||||||||||||||||||||||||
Letzte Änderung: | 07 Nov 2023 12:57 |
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