基于PRI变换快速雷达信号分选方法  

A Fast Radar Signal Sorting Method Based on PRI Transform

作　　者：李斌[1] 李杨[1] 彭平 LI Bin;LI Yang;PENG Ping(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2期42-50,共9页Electronic Information Warfare Technology

摘　　要：脉冲重复间隔(Pulse Repetition Interval, PRI)变换法对典型雷达信号分选效果良好,但运算量大的缺点使其难以在复杂电磁环境下实现实时信号分选处理,因而制约其广泛应用。基于PRI变换法原理和运算复杂度模型,提出了PRI谱高次谐波抑制和压缩PRI谱分辨率两种方法,对PRI变换法关键步骤进行优化,提升处理速度。仿真了6种典型重频类型雷达信号脉冲数据进行分选效果验证,结果表明所提方法能适应多种重频类型和复杂电磁环境信号分选,处理速度提升达几倍至几十倍,可明显提高PRI变换法的工程应用能力。The pulse repetition interval(PRI) transform algorithm has a good sorting effect on typical radar signals, but the disadvantage of large amount of calculation makes it difficult to achieve real-time signal sorting in complex electromagnetic environment, which restricts its wide application.Based on the principle of PRI transform method and the computational complexity model, high order harmonic suppression method of PRI spectrum and compressed PRI spectral resolution method are proposed.The key steps of PRI transformation method is optimized and the processing speed is improved.The sorting effect of six typical radar signal pulse data is verified by simulation.The results show that it has good sorting effectiveness and high speed, and can greatly improve the PRI transform algorithm engineering application ability.

关 键 词：雷达信号分选 PRI变换 高次谐波抑制 压缩PRI谱分辨率 

分 类 号：TN971.1[电子电信—信号与信息处理]