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单脉冲测角的二维分级主旁瓣干扰联合抑制方法

张仁李 朱蕾 邱爽 盛卫星

张仁李, 朱蕾, 邱爽, 盛卫星. 单脉冲测角的二维分级主旁瓣干扰联合抑制方法[J]. 电子与信息学报, 2024, 46(1): 213-221. doi: 10.11999/JEIT221577
引用本文: 张仁李, 朱蕾, 邱爽, 盛卫星. 单脉冲测角的二维分级主旁瓣干扰联合抑制方法[J]. 电子与信息学报, 2024, 46(1): 213-221. doi: 10.11999/JEIT221577
ZHANG Renli, ZHU Lei, QIU Shuang, SHENG Weixing. Two-dimensional Hierarchical Mainlobe and Sidelobe Jamming Suppression Algorithm for Monopulse Angle Estimation[J]. Journal of Electronics & Information Technology, 2024, 46(1): 213-221. doi: 10.11999/JEIT221577
Citation: ZHANG Renli, ZHU Lei, QIU Shuang, SHENG Weixing. Two-dimensional Hierarchical Mainlobe and Sidelobe Jamming Suppression Algorithm for Monopulse Angle Estimation[J]. Journal of Electronics & Information Technology, 2024, 46(1): 213-221. doi: 10.11999/JEIT221577

单脉冲测角的二维分级主旁瓣干扰联合抑制方法

doi: 10.11999/JEIT221577
基金项目: 国家自然科学基金(61971224, 62001230)
详细信息
    作者简介:

    张仁李:男,博士,副教授,研究方向为阵列信号处理、雷达抗干扰等

    朱蕾:女,硕士生,研究方向为阵列信号处理

    邱爽:男,博士,研究方向为DOA估计、阵列信号处理等

    盛卫星:男,博士,教授,研究方向为智能天线、雷达系统、人工智能等

    通讯作者:

    张仁李 zhangrenli_nust@163.com

  • 中图分类号: TN972

Two-dimensional Hierarchical Mainlobe and Sidelobe Jamming Suppression Algorithm for Monopulse Angle Estimation

Funds: The National Natural Science Foundation of China (61971224, 62001230)
  • 摘要: 针对矩形平面阵列天线同时存在主、旁瓣干扰的单脉冲测角问题,该文设计了2维分级自适应单脉冲波束形成算法(TDHJ-ADBF)。TDHJ-ADBF算法将矩形平面阵分为方位维和俯仰维两个正交维度,采用2维分级处理架构:第1级处理在测角维进行,采用低运算量的压缩多重信号分类法对测角维主瓣干扰进行快速识别与方向估计,构造阻塞矩阵滤除主瓣干扰,获得仅含旁瓣干扰和噪声的协方差矩阵,进而对和、差波束方向图进行指向与鉴角曲线联合约束,完成测角维旁瓣干扰抑制与波束形成处理;第2级在非测角维对残留的测角维主瓣干扰进行抑制。通过2维分级处理实现主、旁瓣干扰联合对抗,并保持单脉冲测角的鉴角曲线线性度。仿真结果表明,TDHJ-ADBF算法实现了对主、旁瓣干扰联合抑制,具有高精度的单脉冲测角性能。
  • 图  1  均匀矩形平面阵模型

    图  2  TDHJ-ADBF算法流程图

    图  3  v维搜索区域划分

    图  4  C-MUSIC与MUSIC在u维与v维空间谱

    图  5  v维测角时第1级波束形成(v维)方向图

    图  6  v维测角时第2级波束形成(u维)方向图

    图  7  u维测角时第1级波束形成(u维)方向图

    图  8  u维测角时第2级波束形成(v维)方向图

    图  9  3种算法单脉冲测角结果

    表  1  仿真参数设置

    阵列参数目标参数干扰参数
    阵元数:M=N=16目标:方向(u,v) =(0.035, 0.002)干扰J1:方向(u,v)= (–0.086,0.086)/JNR1=28 dB
    波束指向:(u,v)= (0, 0)目标SNR=0 dB干扰J2:方向(u,v)= (0,0.342) /JNR2=30 dB
    阵元间距:λ/2干扰J3:方向(u,v)= (0.422,0) /JNR3=32 dB
    下载: 导出CSV

    表  2  C-MUSIC算法u维和v维正交性检验结果

    干扰u维估计
    干扰位置
    与原始噪声子空间的
    正交性值
    是否为u维主瓣干扰v维估计
    干扰位置
    与原始噪声子空间的
    正交性值
    是否为v维主瓣干扰
    J1u
    检验
    –0.0868194.8v
    检验
    0.08612230
    J20918.1–0.0580.185
    J30.0231.20906.899
    下载: 导出CSV

    表  3  100次权重计算运行时间(s)

    TDHJ-ADBFEADBFEMP-CMR
    运行时间0.61130.01861.4116
    下载: 导出CSV
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  • 被引次数: 0
出版历程
  • 收稿日期:  2022-12-29
  • 修回日期:  2023-04-08
  • 网络出版日期:  2023-04-26
  • 刊出日期:  2024-01-17

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