| 对线性调频雷达的正弦加权调频干扰技术 |
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| 引用本文： | 张煜,杨绍全,董春曦,郑文秀.对线性调频雷达的正弦加权调频干扰技术[J].系统工程与电子技术,2007,29(4):544-547. |
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| 作者姓名： | 张煜 杨绍全 董春曦 郑文秀 |
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| 作者单位： | 西安电子科技大学电子对抗研究所,陕西,西安,710071 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 根据线性调频雷达发射信号的特点,提出一种新的应答式干扰技术——正弦加权调频干扰,即干扰机对接收到的雷达照射信号附加正弦频率调制,然后将调频结果放大之后转发出去。阐述了利用正弦信号进行频率调制的干扰机理,分析了干扰信号的频率特性,推算了决定干扰效果的各项关键参数。理论分析证明,正弦加权调频干扰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,且只需要较小的干扰功率。仿真实验表明了理论分析的正确性和实际应用的可行性。
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| 关 键 词： | 电子对抗 调频干扰 线性调频信号 正弦调频 |
| 文章编号： | 1001-506X(2007)04-0544-04 |
| 修稿时间： | 2006年1月16日 |
Sinusoidal weighted frequency modulation jamming technique countering LFM radar |
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| ZHANG Yu,YANG Shao-quan,DONG Chun-xi,ZHENG Wen-xiu.Sinusoidal weighted frequency modulation jamming technique countering LFM radar[J].System Engineering and Electronics,2007,29(4):544-547. |
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| Authors: | ZHANG Yu YANG Shao-quan DONG Chun-xi ZHENG Wen-xiu |
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| Abstract: | A new method is proposed for jamming the linear frequency modulation(LFM) radar,which is based on the feature of the LFM radar signals and is named sinusoidal weighted frequency modulation jamming.The jammer receives the radar signal and modulates it in frequency domain,and then the modulated signal is retransmitted.It can produce false targets deceptive jamming or cover jamming according to the modulating parameters.This technique can counter the frequency agile radar and just requires lower jamming power.The theoretical analysis and computer simulation justify the validity and efficiency of the new jamming technique. |
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| Keywords: | electronic countermeasure frequency modulation jamming LFM signal sinusoidal FM |
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