DocumentCode :
1902975
Title :
Ambiguity suppression by Azimuth Phase Coding in multichannel SAR systems
Author :
Bordoni, Federica ; Younis, Marwan ; Krieger, Gerhard
Author_Institution :
Microwaves & Radar Inst., German Aerosp. Centre (DLR), Wessling, Germany
fYear :
2011
fDate :
24-29 July 2011
Firstpage :
4457
Lastpage :
4460
Abstract :
The Azimuth Phase Coding (APC) technique, proposed to suppress range ambiguities in conventional SAR systems, stands out for its low implementation complexity and its effectiveness for point and distributed ambiguities. This paper investigates the possibility of applying the APC to the new, forthcoming generation of multichannel SAR systems, for high resolution and wide swath imaging, based on Digital Beamforming on receive. The extension of APC to multichannel SAR systems is mathematically described. A new metric is 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.
Keywords :
array signal processing; geophysical signal processing; phase coding; remote sensing by radar; synthetic aperture radar; APC technique; Azimuth Phase Coding; Digital Beamforming; high resolution imaging; multichannel SAR systems; range ambiguity suppression; wide swath imaging; Azimuth; Bandwidth; Discrete Fourier transforms; Encoding; Image reconstruction; Planar arrays; Synthetic aperture radar; Azimuth Phase Coding; DBF; SAR;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
ISSN :
2153-6996
Print_ISBN :
978-1-4577-1003-2
Type :
conf
DOI :
10.1109/IGARSS.2011.6050222
Filename :
6050222
Link To Document :
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