基于相关性的杂波环境自适应对消方法  

An Adaptive Sidelobe Cancellation Method in Clutter Environment Based on Relevance

作　　者：曲圣杰[1,3] 雷红 常城 高越 QU Shengjie;LEI Hong;CHANG Cheng;GAO Yue(The 38th Research Institute of China Electronics Technology Group Corporation,Hefei 230088,China;Unit 63861 of PLA,Baicheng 137001,China;Key Laboratory of Aperture Array and Space Application,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088 [2]中国人民解放军63861部队,吉林白城137001 [3]孔径阵列与空间探测安徽省重点实验室,安徽合肥230088

出　　处：《雷达科学与技术》2022年第4期429-434,共6页Radar Science and Technology

摘　　要：旁瓣对消技术是应对旁瓣有源压制干扰的有效手段。实际应用发现,对于工作在具有强杂波环境的中近程雷达,指向杂波区域的回波数据中会存在大量乃至全距离的杂波数据,对干扰样本的选取带来了极大困难。错误选取强杂波数据作为干扰样本不仅难以有效对消干扰,还可能对检测目标的回波造成恶劣影响。本文提出一种基于相关性的杂波环境自适应旁瓣对消方法,首先统计辅助波束与主波束之间的干扰相关性,然后根据相关性统计结果采取不同的对消处理措施,仿真试验平台的试验数据表明本文方法不仅可以在强杂波环境下有效提取样本进行对消处理,而且保障了弱杂波环境下的对消性能,较大地提高了旁瓣对消方法在杂波环境下的适用性。Adaptive sidelobe cancellation technology is an effective means to deal with suppression interfe-rence.In practice,there will be massive or even full-distance clutter in echo data when pointing to the clutter area in the use of medium-and short-range radar.This brings great difficult to the selection of interference samples.It is not only difficult to effectively resist interference with incorrectly selecting clutter data as interference samples,but also has bad impact on the target echo.In this paper,an adaptive sidelobe cancellation method in clutter environment based on relevance is proposed.First,the interference correlation between the auxiliary beam and the main beam is counted,and then different measures are taken according to the correlation statistical results.Practical experimental data show that not only correct samples can be selected in strong clutter environment but also good performance can be achieved in weak clutter environment.

关 键 词：自适应旁瓣对消 压制干扰 杂波环境 相关性 

分 类 号：TN974[电子电信—信号与信息处理]