典型体制雷达引信信号的调制制式识别  

Typical Radar Fuze Signals Modulation Standard Identification

作　　者：朱航[1,2] 张淑宁[1] 赵惠昌[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院 [2]解放军73015部队

出　　处：《探测与控制学报》2016年第5期6-9,共4页Journal of Detection & Control

基　　金：国家自然科学基金项目资助(61301216);国防预研究基金项目资助(9140A0502021DQ0201)

摘　　要：针对现有方法只能识别某一类特定信号的不足,为了有效识别出几类典型体制雷达引信信号,提出了基于调制周期估计及时频脊线提取的信号调制制式识别方法。该方法对信号自相关函数进行分析以估计调制周期,而后估计包络波形以完成对占空比的估计来区分脉冲串信号类型;对于连续波信号通过周期积累和时频脊线提取,利用几项特征参数识别调制制式。仿真分析表明,该方法具有较高的识别准确率。In order to recognize the several kinds of frequency or phase modulated radar fuze signals with typical modulation systems,a method of modulation identification was proposed.The modulation period could be esti-mated through auto-correction function analysis firstly,after that the duty radio could be estimated through sig-nal envelop to distinguish whether the signal was pulse train signal or continuous-wave signal.For continuous-wave signal,the time-frequency ridge should be extracted,then the modulation type could be identified through signal characteristics.The simulation results supposed that the proposed method was effective.

关 键 词：雷达引信信号 调制周期 包络波形 时频脊线 周期积累 

分 类 号：TN971.1[电子电信—信号与信息处理]