%0 Journal Article
%T Study of Nonuniform Azimuth Sampling of DPCMAB Technique in Spaceborne SAR<br>星载SAR DPCMAB技术的方位向非均匀采样研究
%A Fan Qiang
%A Lü Xiao-De
%A Zhang Ping
%A Xu Meng
%A <br>范强
%A 吕晓德
%A 张平
%A 许猛
%J 电子与信息学报
%D 2006
%I 
%X In the system of Displaced Phase Centre Multiple Azimuth Beams (DPCMAB) of spaceborne SAR, the transmitter blinding and nadir echo eclipsing events can lead to nonuniform azimuth sampling that results in the appearance of unexpected peaks on the both sides of mainlobe of azimuth impulse response. In this paper, the Spectral-Fit method and the reconstruction in time domain method are adopted to eliminate the effect due to azimuth nonuniform sampling with the quality of image being unaffected. Contrasting the number of arithmetic operations of the above two methods, it is shown that the reconstruction in time domain method is superior to the Spectral-Fit method.
%K Spaceborne SAR
%K DPCMAB
%K Nonuniform azimuth sampling
%K Spectral-Fit method
%K Reconstruction in time domain method<br>星载SAR
%K 分离相位中心方位多波束
%K 方位向非均匀采样
%K Spectral-Fit法
%K 时域重构法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=E6544D4FC01CFA08&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=4AD960B5AD2D111A&eid=6209D9E8050195F5&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9