摘要
根据间歇采样转发干扰和正弦加权调频干扰的原理和特点,提出了一种新的对付线性调频雷达的干扰方法—间歇采样正弦加权调频干扰,即干扰机对接收到的雷达照射信号先进行间歇采样处理,再附加正弦频率调制,然后将调频结果放大转发出去。理论分析证明,该方法对于线性调频雷达具有显著的干扰效果,根据调制参数不同可以产生假目标欺骗干扰和覆盖干扰,仿真实验表明了理论分析的正确性和实际应用的可行性。
A new method is proposed for jamming the linear frequency modulation （LFM） radar, which is based on the principle and feature of interrupted-sampling repeating jamming and sinusoidal weighted frequency modulation jamming. It is named interrupted-sampling and sinusoidal weighted frequency modulation jamming. The radar signal is received by the jammer, then it is interrupted- sampled and modulated in frequency domain, and then the modulated signal is retransmitted. The false target deceptive jamming or cover jamming could be produced according to the modulating pa- rameters. The validity and efficiency of the new jamming technique is justified by the theoretical analysis and computer simulation.
出处
《电子信息对抗技术》
2013年第1期36-41,62,共7页
Electronic Information Warfare Technology
关键词
间歇采样
正弦加权调频
数字射频存储
线性调频信号
脉冲压缩
interrupted-sampling
sinusoidal weighted frequency modulation
digital radio frequency memory （DRFM）
linear frequency modulation （LFM） signal
pulse compression
