一种基于PRI谱的自适应重频检测方法  

An Adaptive PRF Detection Method Based on PRI Spectrum

作　　者：李斌[1] 周彬[1] 李杨[1] LI Bin;ZHOU Bin;LI Yang(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036

出　　处：《电子信息对抗技术》2023年第3期24-31,共8页Electronic Information Warfare Technology

摘　　要：脉冲重复间隔(Pulse Repetition Interval,PRI)变换方法能够适应典型重频(Pulse Repetition Frequency,PRF)类型雷达信号分选,但采用观察时间原则和谐波抑制原则生成检测门限分选过程中,容易出现多信号分选漏批情况。基于滑窗滤波技术原理,提出PRI谱滑窗滤波重频检测方法,实现多信号自适应分选,提高PRI变换方法对复杂电磁环境的适应能力。仿真了6种典型重频类型雷达脉冲数据进行分选效果验证,结果表明所提方法具备典型类型重频雷达信号分选能力,多信号及复杂信号环境适应能力强,信号分选及脉冲提取准确率高。The pulse repetition interval(PRI)transform method can sort typical pulse repetition frequency(PRF)radar signal.But,batch missing is easy to occur in multi signal sorting,because of the observed principle and harmonic principle it used.Based on the sliding window filtering technology,a method of PRI spectrum sliding window filtering PRF detection is proposed.Multi signal adaptive sorting is realized and the adaptability of PRI transformation method to complex electromagnetic environment is improved.Six kinds of typical radar signal pulse data is simulated to validate the effectiveness.The results show that the proposed method is capable of sorting typical PRF radar signals.It has strong adaptability to multi signal and complex signal environment and high accuracy of signal sorting and pulse extraction.

关 键 词：雷达信号分选 PRI变换 重频检测 滑窗滤波 

分 类 号：TN971.1[电子电信—信号与信息处理]