Azimuth ambiguity of multi-channel SAR

Author

Ma, Xile ; Sun, Zaoyu ; Dong, Zhen ; Huang, Haifeng

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2012

fDate

22-27 July 2012

Firstpage

3807

Lastpage

3810

Abstract

Azimuth multi-channel synthetic aperture radar has been widely studied to realize high resolution wide swath imaging. Spectrum reconstruction algorithm deals with the main-lobe aliasing while the side-lobe spectrum still exists and is weighted by the reconstruction network as well. In the present paper, azimuth ambiguity of multi-channel strip SAR is investigated, an analytical expression of azimuth ambiguity to signal ratio is derived based on established linear model of the multi-channel signal in Doppler domain. The analysis will definitely benefit multi-channel system design.

Keywords

radar signal processing; signal reconstruction; synthetic aperture radar; Doppler domain; azimuth ambiguity; azimuth multichannel synthetic aperture radar; high resolution wide swath imaging; linear model; multichannel SAR; multichannel signal; side-lobe spectrum; spectrum reconstruction algorithm; Azimuth; Bandwidth; Doppler effect; Image reconstruction; Mathematical model; Reconstruction algorithms; Synthetic aperture radar; azimuth ambiguity; multi-channel; synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6350583

Filename

6350583