%0 Journal Article
%T A Easy Implementation Real Time Autofocus Algorithm for High Resolution Airborne SAR<br>一种易行的高分辨率机载SAR实时自聚焦算法
%A Zhang Xin
%A Wu Yi-rong
%A Ding Chi-biao
%A <br>张 新
%A 吴一戎
%A 丁赤飚
%J 电子与信息学报
%D 2006
%I 
%X The effect of the range migration to the Shift-And-Correlate Monopulse Secondary Surbeillause Redar (SAC) algorithm is analyzed in this paper. The conclusion is that the precision of SAC would be severely affected by the range migration in the high resolution SAR. Integrated with the range Doppler algorithm, a new SAC autofocus algorithm based on the limits of range bin is presented, which called Shift-And-Correlate within Gate Strategy (SACGS). The effect of the range migration is minished by SACGS. And the precision is increased. The efficiency of SACGS is proved by the simulation and actual SAR data. It can satisfy the request of the high resolution. And the computation is very simple, which make it very suitable for real-time image processing.
%K Synthetic aperture radar
%K Shift-and-correlate algorithm
%K Real time imaging
%K Autofocus processing<br>合成孔径雷达
%K 频移相关算法
%K 实时成像
%K 自聚焦处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=BC7CE6CB94CAADBA&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=94C357A881DFC066&sid=3019419AF3C0F2FB&eid=BD0BCC5CD284A664&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=5