%0 Journal Article
%T Minimizing Sum of Image Amplitudes Autofocus Algorithm<br>图像幅度和值最小化自聚焦算法
%A Liu Bi-dan
%A Han Song
%A Wang Yan-fei
%A <br>刘碧丹
%A 韩松
%A 王岩飞
%J 电子与信息学报
%D 2009
%I 
%X High resolution Synthetic Aperture Radar (SAR) imaging requires that the azimuth frequency modulation rate is accurately estimated. A new autofocus algorithm is presented which minimizing sum of amplitudes in this paper. This paper analyses the relationship between the image contrast function and the sum of amplitudes, when the matched function's amplitude in azimuth direction is invariable. Based on the relationship between the image contrast function and the focus degree of the image, the minimizing sum o...
%K Synthetic Aperture Radar (SAR)
%K Doppler frequency rate
%K Autofocus
%K Minimizing sum of image amplitudes<br>合成孔径雷达
%K 多普勒调频斜率
%K 自聚焦
%K 幅度和值最小
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=0E93F86355CCDF55E7AC1EAF7498D170&yid=DE12191FBD62783C&vid=4AD960B5AD2D111A&iid=E158A972A605785F&sid=B5D9C773C430C13C&eid=E3691231514F8E11&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=10