收稿日期: 2010-04-30
修回日期: 2010-05-20
网络出版日期: 2011-03-15
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
张永庆 , 雷宏 . 一种基于数字波束形成的抑制星载SAR距离模糊的方案[J]. 中国科学院大学学报, 2011 , 28(2) : 217 -222 . DOI: 10.7523/j.issn.2095-6134.2011.2.012
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
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