摘要
线性调频信号能够成功地解决雷达作用距离与距离分辨率之间的矛盾,因而在许多常规体制雷达以及新体制雷达中得到广泛应用。由于线性调频信号的脉冲压缩网络对噪声及常见干扰具有很强的抑制作用,所以采用这种信号的雷达具有很强的抗干扰能力。在分析了线性调频信号的时域、频域特性的基础上,研究了射频噪声干扰、卷积调制干扰、移频干扰和延时干扰的干扰效果,通过仿真及各干扰样式之间的比较,总结出了最佳干扰样式。
Linear frequency modulation （LFM） signal can successfully resolve the antinormy between radar range and the range resolution, so it is used widely in many conventional system radars as welt as new system radars. As the pulse compression network of the LFM signal has a good inhibition effect to noise and common jamming, the radar that adopts this signal has strong anti-jamming capability. Based on the analysis on the characteristics of time domain and frequency domain of the LFM signal,this paper studies the jamming effects of radio-frequency noise jamming,convolution modulation jamming, frequency shift jamming and time delay jamming, summarizes the best jamming patterns through the simulation and comparison among several jamming patterns.
出处
《舰船电子对抗》
2009年第4期96-100,共5页
Shipboard Electronic Countermeasure
关键词
线性调频信号
卷积调制干扰
移频干扰
延时干扰
linear frequency modulation signal convolution modulation jamming frequency shift jamming time delay jamming
