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A novel scheme for restraining range ambiguity of spaceborne SAR based on digital beamforming
Received date: 2010-04-30
Revised date: 2010-05-20
Online published: 2011-03-15
Beamforming is one of the main means for improving the spaceborne synthetic aperture radar(SAR). A broad null beamforming algorithm is proposed to form specified-depth null in the ambiguity regions in order to suppress the echo from those regions.The performance analysis of this scheme is given. Simulation results show efficiency and feasibility of the scheme.
Key words： SAR; digital beamforming; range ambiguity; STAP; sector nulling
ZHANG Yong-Qing , LEI Hong . A novel scheme for restraining range ambiguity of spaceborne SAR based on digital beamforming[J]. Journal of University of Chinese Academy of Sciences, 2011 , 28(2) : 217 -222 . DOI: 10.7523/j.issn.2095-6134.2011.2.012
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