复杂电磁环境下雷达辐射源PRI周期变化判别方法  

Discrimination Method for PRI Period Variation of Radar Emitter in Complex Electromagnetic Environment

作　　者：王聪 苏雨 程焱明 胡晓 WANG Cong;SU Yu;CHENG Yanming;HU Xiao(The Eighth Research Academy of CSSC,Yangzhou 225101,China;Unit 91197 of PLA,Qingdao 266400,China)

机构地区：[1]中国船舶集团有限公司第八研究院,江苏扬州225101 [2]解放军91197部队,山东青岛266400

出　　处：《舰船电子对抗》2025年第2期63-66,70,共5页Shipboard Electronic Countermeasure

摘　　要：针对统计直方图法仅使用脉冲序列的统计特性,忽略了脉冲序列的时序特征,不能准确提取出脉冲重复间隔(PRI)周期变化特征的问题,提出一种复杂环境下雷达辐射源PRI周期变化判别方法,通过时序分析手段将PRI序列时序特征与统计特征相结合,在脉冲样本不足,脉冲丢失严重的情况下,能够较准确地提取出PRI序列的周期变化特征。Aiming at the problem that the statistical histogram method cannot accurately extract the period variation characteristics of pulse repetition interval(PRI)because of only using the statistical characteristics of the pulse sequence and ignoring the timing characteristics of the pulse sequence,this paper proposes a method to discriminate the PRI period variation of radar emitter in complex electromagnetic environment.By combining the temporal features of PRI sequence with statistical features through timing analysis,the periodic variation features of PRI sequences can be accurately extracted in the case of insufficient pulse sample and serious pulse loss.

关 键 词：脉冲重复间隔 周期变化 特征提取 

分 类 号：TN971.1[电子电信—信号与信息处理]