%0 Journal Article
%T Effect of Air Hybrid Mode SAR Beam Point Steering on the Image Quality<br>机载混合模式SAR波束指向控制对图像质量的影响
%A Jiang Yan-ting
%A Zhou Yin-qing
%A Xu Hua-ping
%A <br>蒋彦婷
%A 周荫清
%A 徐华平
%J 电子与信息学报
%D 2008
%I 
%X A mathematical model of the illumination intensity, which is imposed on the point target by the radar beam step steered, is proposed for the hybrid mode SAR system. By the analysis of azimuth compressed echo signal, combining mathematical deduction, the effects of beam pointing on the image quality are proposed, which are including: the steering time of beam pointing causes infinite paired echo; the hybrid factor causes the extension of the main lobe, which results in the decrease of azimuth resolution; the hybrid factor causes the decrease of the side lobe, which increases the effect of paired echo on the image quality; the interaction of the hybrid factor and the steering time of beam pointing causes aberration of echo. These are also demonstrated by the simulation. Finally, the suggestion of establishment of the hybrid mode SAR antenna beam point steering is proposed.
%K Synthetic Aperture Radar (SAR)
%K Hybrid mode
%K Beam point steering
%K Image quality<br>合成孔径雷达
%K 混合模式
%K 波束指向控制
%K 成像质量
%K 混合模式
%K 波束指向
%K 指向控制
%K 图像质量
%K 质量影响
%K Image
%K Quality
%K Point
%K Beam
%K Hybrid
%K Mode
%K 方案
%K 仿真验证
%K 计算机
%K 利用
%K 畸变
%K 存在
%K 相互作用
%K 旁瓣
%K 方位向分辨率
%K 展宽
%K 主瓣
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=B3738E84B5B298B4B2B66EA077C217E8&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=0B39A22176CE99FB&sid=B66C5792F4740920&eid=302684F6FB4B24FF&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=8