| 引用本文: | 陈浩，吕明久，吴华新，谢谠，夏斌. 频分MIMO雷达波形捷变抗自卫式假目标干扰[J]. 雷达科学与技术, 2021, 19(4): 379-386.[点击复制] |
| CHEN Hao, LYU Mingjiu, WU Huaxin, XIE Dang, XIA Bin. Self-Defense False Target Jamming Suppression for Frequency Diverse MIMO Radar Based on Waveform Agility[J]. Radar Science and Technology, 2021, 19(4): 379-386.[点击复制] |
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| 摘要: |
| 针对频分MIMO雷达在自卫式欺骗干扰情况下，空域自适应波束形成算法无法有效抑制干扰的问题，提出了一种基于波形捷变的时域自卫式假目标干扰抑制方法。首先阐述了支援式主瓣假目标干扰抑制机理，指出其抗自卫式干扰的局限性；然后分析了波形捷变抗自卫式干扰的基本原理；最后对频分MIMO雷达在不同周期发射的正交信号波形进行了设计，使干扰在经过匹配滤波时因失配而得到抑制。理论和仿真均表明通过对雷达不同周期的载频设计，频分MIMO雷达可以有效抗自卫式假目标干扰。 |
| 关键词: 频分MIMO 自卫式假目标干扰抑制 波形捷变 正交信号 |
| DOI：DOI:10.3969/j.issn.1672-2337.2021.04.003 |
| 分类号:TN958.5 |
| 基金项目:湖北省自然科学基金（No.ZRMS2020001116); 学院“托青”工程（No.TQGC-2021-001); 学院“后基”工程（No.HJGC-2021-003); 学校科研预研基金 |
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| Self-Defense False Target Jamming Suppression for Frequency Diverse MIMO Radar Based on Waveform Agility |
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CHEN Hao, LYU Mingjiu, WU Huaxin, XIE Dang, XIA Bin
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Air Force Early Warning Academy, Wuhan 430019, China
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| Abstract: |
| In order to solve the problem that the spatial domain adaptive beamforming algorithm of frequency diverse MIMO radar cannot effectively suppress jamming under self-defense deception jamming, a time domain self-defense false target jamming suppression method based on waveform agility is proposed. Firstly, the mechanism of supporting mainlobe false target jamming is explained, and the limitation of anti-self-defense jamming is pointed out. Then the basic principle of anti-self-defense jamming of waveform agility is analyzed. Finally, the orthogonal signals transmitted by the frequency diverse MIMO radar at different periods are designed so as to suppress the jamming by the mismatch when performing matched filtering. Both theoretical and simulated results show that the frequency diverse MIMO radar has a good performance on self-defense false target jamming suppression by designing carrier frequencies at different periods. |
| Key words: frequency diverse MIMO self-defense false target jamming suppression waveform agility quadrature signal |
