一种基于信号重构的雷达主瓣干扰抑制方法
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作者单位:

1.上海机电工程研究所,上海 201109;2.自动目标识别全国重点实验室(上海),上海 201109;3.上海航天技术研究院,上海 201109

作者简介:

徐磊磊(1989—),男,工程师,博士,主要研究方向为探测制导与信息对抗、雷达协同探测等。

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基金项目:

国家自然科学基金资助项目(62201408)


A Radar Mainlobe Interference Suppression Approach Based on Signal Reconstruction
Author:
Affiliation:

(1.Shanghai Electromechanical Engineering Institute,Shanghai 201109,China;2.National Key Laboratory of Automatic Target Recognition (ATR),Shanghai 201109,China;3.Shanghai Academy of Spaceflight Technology,Shanghai 201109,China)

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    摘要:

    主瓣干扰与真实目标信号在同一个波束范围内,特别是自卫式主瓣干扰,严重影响了雷达的性能,因此,抑制主瓣干扰是目前雷达领域研究的热点也是难点之一。针对该问题,提出了一种基于信号重构的雷达主瓣干扰抑制方法。该方法首先将受主瓣干扰的脉冲剔除,然后基于修改的迭代自适应门限算法沿慢时间维对受干扰的脉冲进行重构。仿真结果表明:所提的方法可以有效抑制主瓣间断干扰,而且对受干扰脉冲的数量和周期具有较高的鲁棒性,具有较好的工程应用前景。

    Abstract:

    The mainlobe interference,especially the self-defense mainlobe interference,seriously affects the radar performance since the signals of the mainlobe and the radar echo generated by a real target are within the same beamwidth.Therefore,suppressing mainlobe interference is one of the hot spots and difficulties in the current radar field.To address this issue,a radar mainlobe interference suppression approach based on signal reconstruction is proposed.Firstly,the pulse signals of mainlobe interference are eliminated.Then,based on the modified iterative method with adaptive thresholding (MIMAT),the interfered pulse signals are reconstructed along the slow time dimension.The simulation results indicate that the proposed approach not only could effectively suppress the mainlobe intermittent interference,but also has high robustness to the amount and period of the interference pulses,which has a promising engineering application prospect.

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徐磊磊,潘俊,周宇泰,尹聚祺,郑晟,魏玉龙,宋波涛,孙全.一种基于信号重构的雷达主瓣干扰抑制方法[J].上海航天(中英文),2025,42(3):166-174.

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  • 收稿日期:2024-10-09
  • 最后修改日期:2024-11-03
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  • 在线发布日期: 2025-06-27
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