频率分集阵雷达技术探讨

许京伟 朱圣棋 廖桂生 张玉洪

许京伟, 朱圣棋, 廖桂生, 张玉洪. 频率分集阵雷达技术探讨[J]. 雷达学报, 2018, 7(2): 167-182. doi: 10.12000/JR18023
引用本文: 许京伟, 朱圣棋, 廖桂生, 张玉洪. 频率分集阵雷达技术探讨[J]. 雷达学报, 2018, 7(2): 167-182. doi: 10.12000/JR18023
Xu Jingwei, Zhu Shengqi, Liao Guisheng, Zhang Yuhong. An Overview of Frequency Diverse Array Radar Technology[J]. Journal of Radars, 2018, 7(2): 167-182. doi: 10.12000/JR18023
Citation: Xu Jingwei, Zhu Shengqi, Liao Guisheng, Zhang Yuhong. An Overview of Frequency Diverse Array Radar Technology[J]. Journal of Radars, 2018, 7(2): 167-182. doi: 10.12000/JR18023

频率分集阵雷达技术探讨

doi: 10.12000/JR18023
基金项目: 国家自然科学基金(61601339)、中国博士后科学基金(2016M590925,2017T100728)、香江学者计划(XJ2017027)、航空科学基金(20160181001)、上海航天科技创新基金(SAST2017-070)和陕西省博士后科学基金
详细信息
    作者简介:

    许京伟(1987–),男,山东人,博士,讲师。2015年在西安电子科技大学雷达信号处理国家重点实验室获得博士学位,现为西安电子科技大学雷达信号处理国家重点实验室讲师。主要研究方向为雷达系统建模、阵列信号处理、波形分集雷达(频率分集阵和空时编码阵)等。E-mail: xujingwei1987@163.com

    朱圣棋(1984–),男,江西人,博士,教授。2010年在西安电子科技大学雷达信号处理国家重点实验室获得博士学位,现为西安电子科技大学雷达信号处理国家重点实验室教授,西安电子科技大学科研院副院长。主要研究方向为雷达运动目标检测、雷达稀疏成像技术等。E-mail: zhushengqi8@163.com

    廖桂生(1963–),男,广西人,博士,教授。1992年在西安电子科技大学雷达信号处理国家重点实验室获得博士学位,现为西安电子科技大学雷达信号处理国家重点实验室教授,西安电子科技大学电子工程学院院长。主要研究方向为雷达系统技术与阵列处理、雷达稀疏成像处理等。E-mail: liaogs@xidian.edu.cn

    张玉洪(1958–),男,江苏人,博士,教授。1988年在西安电子科技大学雷达信号处理国家重点实验室获得博士学位,现为西安电子科技大学雷达信号处理国家重点实验室特聘教授。主要研究方向为阵列信号处理、微波遥感与成像、信号建模与仿真、波形分集技术等。E-mail: yuhzhang@xidian.edu.cn

    通讯作者:

    许京伟   xujingwei1987@163.com

An Overview of Frequency Diverse Array Radar Technology

Funds: The National Natural Science Foundation of China (61601339), The China Postdoctoral Science Foundation (2016M590925, 2017T100728), The Hong Kong Scholars Program (XJ2017027), The Aviation Science Foundation (20160181001), The Innovation Foundation of Shanghai Academy of Spaceflight Technology (SAST2017-070), The Shannxi Postdocatoral Science Foundation
  • 摘要: 频率分集阵(Frequency Diverse Array, FDA)雷达不同天线单元的发射载频存在微小的差异,从而带来了发射方向图距离角度时间依赖的特性,这一特性提供了FDA雷达新的信息和信号处理灵活度,也带了新的技术问题。该文综述了FDA天线技术及雷达应用的相关研究进展,并重点从雷达系统理论与工程应用的角度,着重分析了相干FDA雷达和正交FDA雷达两种体制的技术特点,指出FDA雷达在抗干扰、抗模糊中的应用优势,梳理了FDA雷达技术的难点和研究方向。

     

  • 图  1  电场强度随角度和时间的变化关系,R=3 km

    Figure  1.  Electric field intensity with respect to angle and time, R=3 km

    图  2  电场强度随距离和角度的变化关系,R=[1.5 km, 4.5 km]

    Figure  2.  Electric field intensity with respect to range and angle, R=[1.5 km, 4.5 km]

    图  3  不同角度方向对应的电场强度,R=3 km

    Figure  3.  Electric field intensity in different angles/directions, R=3 km

    图  4  相控阵和FDA的辐射电场能量分布图的传播示意图

    Figure  4.  Radiated power distribution and propagation of electric field

    图  5  脉冲体制发射-接收联合波束形成,Tp=1/ $\Delta $ f

    Figure  5.  Joint tranmit-receive beamforming with pulsed FDA, Tp=1/ $\Delta $ f

    图  6  脉冲体制发射-接收联合波束形成,Tp=1/(2 $\Delta $ f)

    Figure  6.  Joint tranmit-receive beamforming with pulsed FDA, Tp=1/(2 $\Delta $ f)

    图  7  FDA-MIMO雷达发射信号实现结构

    Figure  7.  Transmit procedure of FDA-MIMO radar

    图  8  FDA-MIMO雷达接收处理结构

    Figure  8.  Receive procedure of FDA-MIMO radar

    图  9  干扰和目标的功率谱分布图

    Figure  9.  Spectra distribution of barrage jamming and targets

    图  10  运动平台FDA-MIMO雷达发射-接收2维域的功率谱分布示意图

    Figure  10.  Spectra distribution of signal in transmit-receive two-dimensional domain with FDA-MIMO radar mounted on moving platform

    图  11  多维局域化处理示意图

    Figure  11.  Scheme of multi-dimensional localized processing

    图  12  干扰机真实目标和假目标在发射-接收2维空间频率域的分布

    Figure  12.  Distribution of True and false targets in transmit-receive two-dimensional spatial frequency domain

    表  1  3种体制发射方向图相关特性比较

    Table  1.   Comparion of characters related to transmit beampatterns of phased array, MIMO, and FDA

    阵列体制 不同方向的时域响应 方向图的距离依赖性 发射方向图主瓣 天线发射增益
    相控阵 各向同性 距离无关 稳定 M2
    经典MIMO 各向异性 随距离变化,无规律 M
    FDA 各向异性 随距离变化,有规律 自动扫描 M
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-03-20
  • 修回日期:  2018-04-08
  • 刊出日期:  2018-04-28

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