Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems
Bordoni F, Younis M, Krieger G (2012)
Publication Type: Journal article
Publication year: 2012
Journal
Publisher: IEEE - Institute of Electrical and Electronics Engineers
Edited Volumes: IEEE Transactions on Geoscience and Remote Sensing
Book Volume: 50
Pages Range: 617-629
Journal Issue: 2
URI: https://elib.dlr.de/75106/
DOI: 10.1109/TGRS.2011.2161672
Abstract
The current generation of spaceborne synthetic aperture radar (SAR) systems suffers from a tradeoff 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. © 2006 IEEE.
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APA:
Bordoni, F., Younis, M., & Krieger, G. (2012). Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems. IEEE Transactions on Geoscience and Remote Sensing, 50(2), 617-629. https://dx.doi.org/10.1109/TGRS.2011.2161672
MLA:
Bordoni, Federica, Marwan Younis, and Gerhard Krieger. "Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems." IEEE Transactions on Geoscience and Remote Sensing 50.2 (2012): 617-629.
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