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Performance Comparison of Reflector- and Planar-Antenna based Digital Beam-Forming SAR

Younis, Marwan and Huber, Sigurd and Patyuchenko, Anton and Bordoni, Federica and Krieger, Gerhard (2009) Performance Comparison of Reflector- and Planar-Antenna based Digital Beam-Forming SAR. International Journal of Antennas and Propagation, 2009, pp. 1-13. Hindawi Publishing Corporation.

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Official URL: http://www.hindawi.com/journals/ijap/2009/614931.html


The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the antenna. This dispenses the need for analog beam steering and by this the used of transmit/receive modules for phase and amplitude control. Digital beam-forming will enable Synthetic Aperture Radar (SAR) which overcomes the coverage and resolution limitations applicable to state-of-the-art systems. On the other hand, new antenna architectures, such as reflectors, already implemented in communication satellites, are being considered for SAR applications. An open question is the benefit of combining digital beam-forming techniques with reflector antennas. The paper answers this question by comparing the system architecture and digital beam-forming requirements of a planar and a reflector antenna SAR. Further elaboration yields the resulting SAR performance of both systems. This paper considers multiple novel aspects of digital beam-forming SAR system design, which jointly flow into the presented system performance.

Document Type:Article
Additional Information:The article (open access) is directly accessible through the link.
Title:Performance Comparison of Reflector- and Planar-Antenna based Digital Beam-Forming SAR
AuthorsInstitution or Email of Authors
Patyuchenko, AntonUNSPECIFIED
Bordoni, FedericaUNSPECIFIED
Krieger, GerhardUNSPECIFIED
Date:June 2009
Journal or Publication Title:International Journal of Antennas and Propagation
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 1-13
Publisher:Hindawi Publishing Corporation
Series Name:Special Issue on Active Antennas for Space Applications
Keywords:Reflector Antennas, Digital Beamforming, SAR, Spaceborne SAR, SAR Performance
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Dr.-Ing. Marwan Younis
Deposited On:23 Mar 2009
Last Modified:12 Dec 2013 20:34

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