基于CMT技术的非正侧面阵机载雷达杂波抑制方法研究  

Study on Clutter Suppression Approach to Airborne Phased Radar with Non-Sidelooking Arrays Based on CMT

作　　者：谢文冲[1] 王永良[2] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073 [2]空军雷达学院雷达兵器运用工程军队重点实验室,湖北武汉430019

出　　处：《电子学报》2007年第3期441-444,共4页Acta Electronica Sinica

基　　金：武器装备预研基金(No.51431040105JB4901);装备预研项目(No.51307020204)

摘　　要：非正侧面阵机载雷达杂波谱与正侧面阵机载雷达杂波谱的主要区别在于它的杂波二维谱图随距离的变化而变化,杂波自由度相对增加,造成常规的统计型STAP杂波抑制方法不再适用.本文通过对非正侧面阵机载相控阵雷达杂波的分布进行详细的分析和研究,提出了一种基于CMT技术的非正侧面阵机载相控阵雷达杂波抑制方法.仿真结果表明了本文方法的有效性.The primary differences in airborne radar clutter spectrum between non-sidelooking and sidelooking arrays are that its Doppler frequency of the clutter spectrum varies with the range and its clutter DOF is increased, so that the conventional STAP methods are not feasible. In this paper, the clutter distribution of airborne radar with non-sidelooking arrays is analyzed and investigated in detail, then a new approach to airborne phased radar with non-sidelooking arrays based on CMT is presented. The simulation results verify the effectivity of the method.

关 键 词：非正侧面阵 杂波抑制 空时自适应处理 多普勒频移 协方差矩阵加权 

分 类 号：TN957.51[电子电信—信号与信息处理]