摘要
本文首先针对时空二维信号定义了杂波子空间，指出了杂波分布的先验知识、杂波子空间以及最佳权值之间的关系，据此提出了基于杂波先验知识的时空二维最佳滤波方法。在大杂噪比条件下，该方法等效于最大信干比准则下的最佳滤波。最后的计算机仿真结果与理论分析相一致．
First,clutter subspace is definded,and then the relationship among clutter priori knowledge,clutter subspace and optimal filtering weight is pointed out.With the relationship,this paper presents a time-space 2-D optimal filtering method based on clutter priori knowledge.In the condition of large CNR,this method is equivalent to the optimal filtering under the maximal SIR criterion.Finally,a simulation is made and the results conform with the theoretical analysis.
出处
《信号处理》
CSCD
北大核心
1994年第3期147-155,共9页
Journal of Signal Processing
