机载相控阵雷达三维空时开环杂波块对消器  

Three dimensional space-time open-loop clutter block canceller applied to the airborne phased array radar

作　　者：向平叶 冯大政[1] 周延[1] 朱国辉[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2015年第3期26-32,共7页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61271293)

摘　　要：机载相控阵雷达的杂波自由度较高,所需训练样本的数量巨大,针对这一问题提出了一种三维空时开环杂波块对消器来对杂波进行抑制.首先利用先验知识建立了三维杂波的向量矩阵模型,然后利用杂波的空时相关性设计系数矩阵来消除杂波.实验表明,该方法能在小样本情况下很好地抑制杂波,降低杂波自由度,从而验证了该方法的有效性.Aiming at the excessive clutte＇s DOFs （degrees of freedom） and huge demand for training samples of 3D-STAP, a three dimensional space- time open-loop clutter block canceller （3D-STCBC） is proposed. First, the vector-matrix model of the three dimensional clutter is constructed with the a priori knowledge. Then the equivalence between the spatial domain and the temporal domain is exploited to design a coefficient matrix to make a cancellation between the clutter blocks. The experiment shows that this method can effectively suppress the clutter even with small samples and dramatically lower the clutter＇s DOFs.

关 键 词：机载雷达 三维空时自适应处理 杂波抑制 

分 类 号：TN95[电子电信—信号与信息处理]