基于相关接收的雷达相参脉冲信号分选方法  

Sorting Method of Radar Coherent Pulse Signal Based on Correlation Reception

作　　者：张雷 刘涛 李广强[2] ZHANG Lei;LIU Tao;LI Guangqiang(Unit 95865 of the PLA,Beijing 102218,China;Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]中国人民解放军95865部队,北京102218 [2]空军预警学院,武汉430019

出　　处：《电子信息对抗技术》2025年第1期24-29,共6页Electronic Information Warfare Technology

摘　　要：相参性可以作为雷达信号分选的特征参数,能够有效避免“漏批”情况发生。文中基于相关接收原理,分析了不同初始相位差对相关接收后输出信号波形的影响。通过推导输出信号主峰波形表达式,建立了雷达脉冲信号的相参特征模型,并给出了信号分选流程。仿真表明该模型适用于脉冲信号交叠复杂的情况,在信噪比为-5 dB,初相差为0.2 rad时,仍具有一定分选正确率。Coherence can be used as a characteristic parameter of radar signal sorting,which can effectively avoid the occurrence of"missing batch".Based on the principle of correlation reception,the influence of different initial phase difference on the output signal waveform after correlation reception is analyzed.By deducing the expression of the waveform of the main peak of the output signal,a coherent characteristic model of radar pulse signal is established,and the process of signal sorting is also given.The simulation results show that the model is suitable for complex pulse aliasing,and still has a certain sorting accuracy when the signal-to-noise ratio is-5 dB and the initial phase difference is 0.2 rad.

关 键 词：相关接收 相参脉冲 信号分选 匹配滤波 

分 类 号：TN971.1[电子电信—信号与信息处理]