共形阵机载雷达杂波非均匀性定量研究  

A Quantitative Study on Conformal Array Airborne Radar Clutter Nonstationarity

作　　者：高飞[1,2] 谢文冲 王永良 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073 [2]武汉雷达学院重点实验室,武汉430019

出　　处：《现代雷达》2009年第9期36-39,共4页Modern Radar

基　　金：国家自然科学基金重点项目(No.60736009);总装十一五预研项目

摘　　要：共形阵机载雷达杂波非均匀性研究对相关的杂波抑制算法的研究具有重要的指导意义。文中通过对共形阵天线的几何映射及其杂波多普勒频率的数学变换,将杂波多普勒频率分解为正侧虚拟线阵和前向虚拟线阵多普勒频率的线性组合,从而给出了衡量杂波非均匀性强弱的定量准则。最后通过对4种抛物柱面共形阵杂波的仿真分析,说明了所提衡量准则的正确性。Studies on conformal array airborne radar clutter nonstationarity make important sense to the clutter suppression algorithms. In this paper, through geometric mapping of the eonformal array and mathematical transformation of the clutter Doppler frequency expression, the clutter Doppler frequency of eonformal array is divided into linear combination of component of the clutter Doppler frequency of a virtual side-looking linear array and that of a virtual forward-looking linear array, by which the criterion to quantitatively scale the clutter nonstationarity is introduced. Finally, clutters of four eonformal arrays of parabola - cylinder are simulated and analyzed, which validated the presented criterion.

关 键 词：共形阵 非均匀 机载雷达 

分 类 号：TN959.73[电子电信—信号与信息处理]