%0 Journal Article
%T A 2D Sub-aperture Algorithm for SAR with Stepped-chirp Signals<br>一种适用于调频步进信号SAR的2维子孔径处理算法
%A MAO Xin-hu
%A ZHU Dai-yin
%A ZHU Zhao-d
%A MAO Xin-hu
%A ZHU Dai-yin
%A ZHU Zhao-da
%A MAO Xin-hu
%A ZHU Dai-yin
%A ZHU Zhao-da
%A <br>毛新华
%A 朱岱寅
%A 朱兆达
%J 中国图象图形学报
%D 2009
%I 
%X In this work, a 2D overlapped sub-aperture polar format algorithm (PFA) based on stepped-chirp signal is proposed. In synthetic aperture radar (SAR) with stepped-chirp signals, instead of using traditional pulse synthesis to conduct preprocess, the presented method integrates the pulse synthesis process into the range sub-aperture processing. Meanwhile, due to the multi-resolution characteristics of sub-aperture processing, this algorithm is able to compensate the space-variant phase error caused by the radar motion during the period of a pulse cluster. Finally, experiments carried out on simulated and measured data confirm the validity of the algorithm.
%K synthetic aperture radar (SAR)
%K polar format algorithm (PFA)
%K 2D sub-aperture processing
%K stepped-chirp signal
%K bandwidth synthesis
%K space-variant phase compensation<br>合成孔径雷达
%K 极坐标格式算法
%K 2维子孔径处理
%K 调频步进信号
%K 带宽合成
%K 空变相位补偿
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=5A3374D465BA80F6ACCF2AD286DBBFB6&yid=DE12191FBD62783C&vid=F3583C8E78166B9E&iid=F3090AE9B60B7ED1&sid=7EA83CE0951EC46A&eid=3D6B058F17849798&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=13