中文摘要：

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。

英文摘要：

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.