%0 Journal Article
%T On Clutter Degrees of Freedom of the Radar System<br>雷达系统杂波自由度研究
%A Wu Yong
%A Tang Jun
%A Peng Ying-ning
%A <br>伍勇
%A 汤俊
%A 彭应宁
%J 电子与信息学报
%D 2008
%I 
%X To investigate the clutter mitigation performance in non-uniform, non-linear, or sparse array radar, the number of Degrees of Freedom (DoF) estimate theory for band-limited signal is employed to estimate the clutter DoF for these array geometries. The proposed method can effectively predict the number of significant clutter eigenvalues, and reveals the relationship between the clutter DoF and the system parameters as well as the clutter scenario. It is found that in sparse array radar, the system DoF should be increased to reduce the sparse sampling section so that the clutter mitigation performance in such systems can be improved. Finally, the effectiveness of the proposed estimate method is verified with simulation.
%K Radar
%K Target detection
%K Clutter degrees of freedom
%K Clutter suppression
%K Space-Time Adaptive Processing (STAP)<br>雷达
%K 目标检测
%K 杂波自由度
%K 杂波抑制
%K 空时二维自适应处理
%K 雷达系统
%K 杂波
%K 自由度
%K 研究
%K Radar
%K System
%K 有效性
%K 仿真验证
%K 计算机
%K 采样区
%K 稀疏阵
%K 联系
%K 波场
%K 系统参数
%K 特征值
%K 有效估计
%K 估计方法
%K 阵列雷达
%K 度理论
%K 带限信号
%K 抑制性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=C5E97B8140A7DB03BB8A577102BC2F85&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=94C357A881DFC066&sid=31CCC5D591A72A74&eid=E1D875FA50925809&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=13