Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)

Xiang Zhe Chen Baixiao

项喆, 陈伯孝. 频率分集阵列的距离角度解耦的波束形成 (in English)[J]. 雷达学报, 2018, 7(2): 212-219. doi: 10.12000/JR16113
引用本文: 项喆, 陈伯孝. 频率分集阵列的距离角度解耦的波束形成 (in English)[J]. 雷达学报, 2018, 7(2): 212-219. doi: 10.12000/JR16113
Xiang Zhe, Chen Baixiao. Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)[J]. Journal of Radars, 2018, 7(2): 212-219. doi: 10.12000/JR16113
Citation: Xiang Zhe, Chen Baixiao. Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)[J]. Journal of Radars, 2018, 7(2): 212-219. doi: 10.12000/JR16113

Range-angle Decoupled Transmit Beamforming with Frequency Diverse Array (in English)

doi: 10.12000/JR16113
Funds: The National Natural Science Foundation of China (61571344), Shanghai Academy of Spaceflight Technology (SAST2015064, SAST2015071)
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    Author Bio:

    Xiang Zhe was born in Anhui, China in 1992. He received the Bachelor Degree in 2009 from Xidian University. He is currently working toward his Ph.D. degree in Signal Processing at National Laboratory for Radar Signal Processing of Xidian University. His major interests are frequency diverse radar, polarimetric radar, and interference suppression. E-mail: xzysn152@163.com

    Chen Baixiao was born in Anhui, China in 1966. He received the Master degree and the Ph.D. degree in 1994 and 1997, respectively, from Xidian University. He is a professor with National Laboratory for Radar Signal Processing of Xidian University. His research interests include array signal processing and polarimetric radar. E-mail: bxchen@xidian.edu.cn

    Corresponding author: Chen Baixiao. E-mail: bxchen@xidian.edu.cn
  • 摘要:

    常规频率分集雷达(FDA)在发射阵元采用均匀的频率间隔,从而可以形成距离-角度耦合的波束方向图。但是该方向图在多个距离上均形成多峰值波束,当干扰位于任一波束最大指向的距离时,将会带来信干噪比损失。针对上述问题,该文通过分析波束形成的表达式,从原理上提出一个关于频率分集雷达阵列配置的基本原则,能够在指定的距离角度范围内,形成单峰值的波束方向图。几种特例和仿真结果均证明了该原则的有效性。

     

  • Figure  1.  FDA configuration

    Figure  2.  The range-angle distribution diagram for different element

    Figure  4.  Range and angle section views of beampattern

    Figure  5.  Range versus angle normalized beampattern (target position at (400 km, 20°))

    Figure  3.  Range versus angle normalized beampattern

    Table  1.   Parameters for simulations

    Parameter Value Parameter Value
    Element number M 8 d 0.1 m
    Reference frequency f0 1 GHz b 1.4
    {\Delta}f 1 kHz Desired point
    ( \theta_0, r0)
    (0°, 400 km)
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出版历程
  • 收稿日期:  2016-10-08
  • 修回日期:  2017-01-20
  • 刊出日期:  2018-04-28

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