基于信号“指纹”特征的雷达辐射源识别  

Radar emitter recognition based on signal “fingerprint” feature

作　　者：陈涛[1] 刘志武[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2016年第3期39-43,共5页Applied Science and Technology

摘　　要：在电子对抗领域,正确识别雷达脉冲信号是电子对抗侦察的重点也是难点。针对雷达脉冲信号具有很好的稳定性、普遍性和唯一性的包络上升沿特征("指纹"),通过使用宽带数字接收、信号分选与跟踪、数字正交混频等技术即时提取包络上升沿波形,并计算与"指纹"模板的Hausdorff距离,达到识别并匹配雷达辐射源的目的。在操作过程中,通过分析实际现象对Hausdorff距离的计算时机以及应用方式做出了正确的修改。通过大量实验验证了所提方法可以有效地识别出信号所对应的雷达辐射源个体。Identifying radar pulse signals correctly is the key of electronic countermeasures. To match and identifythe radiation source, the technologies of wideband digital receiving, signal sorting and tracking and digital orthogo-nal mixing, etc., are used to catch the rising edge features of the envelope, considering that the radar pulse is sta-ble, universal and unique. In operating process, the computing timing of Hausdofff distance and application are im-proved by analyzing practical phenomenon. Through a lot of experiments, it is proved that the proposed method caneffectively identify the corresponding radar emitter.

关 键 词：电子对抗 雷达辐射源识别 雷达脉冲信号 上升沿特征 HAUSDORFF距离 

分 类 号：TN971.1[电子电信—信号与信息处理]