Intra-pulse frequency agile radar can effectively suppress interrupted sampling repeater jamming by its own"active"anti-jamming characteristics,taking advantage of the discontinuity and periodicity of traditional interrupted sampling repeater jamming,and combining with anti-jamming algorithms.In order to improve the jamming efficiency of the jammer against the intra-pulse frequency agile radar,this paper proposes to use the non-uniform interrupted sampling repeater jamming to jam the intra-pulse frequency agile radar.First,the intercepted intra-pulse frequency agile radar signal is estimated by time-frequency ridge extraction and wavelet transform to obtain the sub-pulse width,and then the non-uniform interrupted sampling repeater jamming is constructed according to the sub-pulse width constraint jamming parameters.Theoretical analysis and results show that it is difficult to suppress interference in intra-pulse frequency agility radar in time and frequency domain through non-uniform interrupted sampling repeater,which greatly improves the jamming ability of jammer.
关键词
电子对抗/脉内频率捷变/时频脊线/小波变换/非均匀间歇采样转发干扰/干扰参数
Key words
electronic counter/intra-pulse frequency agility/time-frequency ridge line/wavelet transform/non-uniform interrupted sampling repeater jamming/parameters of jamming
维普
万方数据