利用幅度重排的机载火控雷达工作模式识别方法

快速、准确地识别机载火控雷达的工作模式,特别是含跟踪信号的高威胁工作模式,是夺取机载电子对抗主动权的关键环节.针对已有工作模式识别方法应用条件受限、工程化应用困难等问题,在分析各工作模式信号特点的基础上,提出了一种利用幅度重排的工作模式识别方法.该方法充分利用信号幅度分布特征识别跟踪信号,对信号按幅度大小进行重排,并进...

Recognition of operation modes of airborne fire control radar using amplitude rearrangement

Recognizing the operation modes of airborne fire control radar quickly and accurately,especially in the high threat mod,is the important part of airborne electronic countermeasures.For the restricted application conditions of existing methods,a new method using amplitude rearrangement is proposed in this paper after a large amount of analysis of each mode.This method makes full use of the characteristics of amplitude distribution to identify tracking signals.First,all the signals are rearranged by the size of signal’s amplitude,and then the first-order difference of the rearranged amplitude iscalculated.Finally,the track and search mode and single target tracking mode are recognized effectively according to the special notch character of the rearranged amplitude.Simulation results prove the good real-time and accuracy rate performance of the proposed method.More importantly,the new method is not sensitive to the pulse deletion and interference.Owing to the above advantages,the proposed method has a good potential in the practical engineering application.