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基于频控阵的稳健Capon波束形成

冯晓宇 谢军伟 葛佳昂 张晶 王博

冯晓宇, 谢军伟, 葛佳昂, 等 . 基于频控阵的稳健Capon波束形成[J]. 北京航空航天大学学报, 2019, 45(4): 769-777. doi: 10.13700/j.bh.1001-5965.2018.0190
引用本文: 冯晓宇, 谢军伟, 葛佳昂, 等 . 基于频控阵的稳健Capon波束形成[J]. 北京航空航天大学学报, 2019, 45(4): 769-777. doi: 10.13700/j.bh.1001-5965.2018.0190
FENG Xiaoyu, XIE Junwei, GE Jiaang, et al. Robust Capon beamforming based on frequency diverse array[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(4): 769-777. doi: 10.13700/j.bh.1001-5965.2018.0190(in Chinese)
Citation: FENG Xiaoyu, XIE Junwei, GE Jiaang, et al. Robust Capon beamforming based on frequency diverse array[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(4): 769-777. doi: 10.13700/j.bh.1001-5965.2018.0190(in Chinese)

基于频控阵的稳健Capon波束形成

doi: 10.13700/j.bh.1001-5965.2018.0190
基金项目: 

国家自然科学基金 61503408

详细信息
    作者简介:

    冯晓宇  男, 硕士研究生。主要研究方向:FDA雷达信号处理; 谢军伟, 男, 教授。主要研究方向:隐身与反隐身、雷达电子战

    通讯作者:

    谢军伟, E-mail: xjw_xjw_123@163.com

  • 中图分类号: TN958

Robust Capon beamforming based on frequency diverse array

Funds: 

National Natural Science Foundation of China 61503408

More Information
  • 摘要:

    为了克服相控阵波束仅具有角度分辨力的缺陷,频控阵通过在阵元间加入相对于载频十分微小的频率增量,实现了波束的距离-角度二维相关。引入3种接收信号处理机制,并对其进行理论推导分析,仿真说明了其中2种机制的实用性。针对指向误差存在情况下,估计的目标导向矢量与真实的目标导向矢量失配的问题,采用稳健Capon波束形成(RCB)算法,给出纠正偏差后的导向矢量闭式解,并在2种信号处理机制下,对其方向图进行了仿真。结果表明,利用RCB算法能在目标位置形成高增益,干扰位置形成零陷,验证了算法在频控阵中应用的有效性。

     

  • 图 1  均匀线阵FDA

    Figure 1.  Uniform linear array frequency diverse array

    图 2  ULA-FDA发射方向图

    Figure 2.  Transmitting beampattern of ULA-FDA

    图 3  不同处理机制接收方向图(仿真1)

    Figure 3.  Receiving beampattern of different processing mechanism (Simulation 1)

    图 4  不同处理机制接收方向图(仿真2)

    Figure 4.  Receiving beampattern of different processing mechanism (Simulation 2)

    图 5  基于RCB的发射、接收和发射-接收方向图(机制1)

    Figure 5.  Transmitting, receiving and transmitting-receiving beampattern based on RCB (Mechanism 1)

    图 6  目标位置距离维和角度维发射-接收方向图(机制1)

    Figure 6.  Transmitting-receiving beampattern of range dimension and angle dimension at target position (Mechanism 1)

    图 7  基于RCB的发射、接收和发射-接收方向图(机制3)

    Figure 7.  Transmitting, receiving and transmitting-receiving beampattern based on RCB (Mechanism 3)

    图 8  目标位置距离维和角度维发射-接收方向图(机制3)

    Figure 8.  Transmitting-receiving beampattern of range dimension and angle dimension at target position (Mechanism 3)

    表  1  仿真参数

    Table  1.   Simulation parameters

    参数 数值
    ULA-FDA阵元总数N 12
    载频f0/GHz 10
    频偏Δf/kHz 4.5
    阵元间距d c/(2f0)
    目标位置 (30°, 50 km)
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-04-09
  • 录用日期:  2018-11-08
  • 网络出版日期:  2019-04-20

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