单通道合成孔径雷达抗调频斜率失配干扰新方法

孟智超; 卢景月; 张帅钦; 张磊; 王虹现

doi:10.11999/JEIT190687

单通道合成孔径雷达抗调频斜率失配干扰新方法

doi: 10.11999/JEIT190687

1.
西安电子科技大学雷达信号处理国家重点实验室西安 710071
2.
63610部队库尔勒 841001
3.
中山大学电子与通信工程学院广州 510275

基金项目: 国家自然科学基金(61771372, 61771367)

详细信息

作者简介:
孟智超：男，1997年生，博士生，研究方向为合成孔径雷达成像与抗干扰

卢景月：男，1994年生，博士生，研究方向为合成孔径雷达成像

张帅钦：男，1983年生，高级工程师，研究方向为雷达目标特性与目标识别

张磊：男，1984年生，副教授，研究方向为合成孔径雷达成像，目标识别

王虹现：男，1979年生，副教授，研究方向为雷达信号处理

通讯作者:
张磊　zhanglei57@mail.sysu.edu.cn

中图分类号: TN975
计量
- 文章访问数: 2377
- HTML全文浏览量: 1060
- PDF下载量: 87
- 被引次数: 0
出版历程
- 收稿日期: 2019-09-05
- 修回日期: 2020-04-02
- 网络出版日期: 2020-04-11
- 刊出日期: 2020-09-27

A New Method of Anti-FM Slope Mismatch Jamming for Single Channel Synthetic Aperture Radar

1.
National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
No.66393 Unit, the PLA, Kuerle 841001, China
3.
School of Electronic and Communication Engineering, Sun Yat-sen University, Guangzhou 510275, China

Funds: The National Natural Science Foundation of China (61771372, 61771367)

摘要

摘要: 该文针对单通道合成孔径雷达(SAR)无法有效抑制调频斜率失配干扰的问题进行了深入的研究。根据干扰频谱与真实回波频谱的差异，该文提出了一种基于频域匹配滤波处理的合成孔径雷达调频斜率失配干扰抑制方法。该方法在准确测得干扰调频斜率的基础上，首先利用干扰信号的空间稀疏性以及低信干比(SIR)的特点，对干扰位置进行稀疏超分辨估计以获得较为精确的干扰时延相位。然后通过获得的干扰调频斜率和时延相位重建干扰信号频谱，以此为基础设计正交匹配滤波器在频域实施干扰信号的抑制，并重建无失真场景图像。最后，计算机仿真实验验证了该文所提方法的有效性。
- 抗干扰 /
- 调频斜率失配干扰 /
- 稀疏 /
- 正交匹配滤波
Abstract: The problem that single-channel Synthetic Aperture Radar (SAR) can not effectively suppress FM slope mismatch jamming is studied in this paper. According to the difference between the jamming spectrum and the real echo spectrum, a method for suppressing the mismatch jamming of SAR FM slope based on matched filtering in the frequency domain is proposed. Based on the accurate measurement of the slope of jamming FM, the sparse super-resolution estimation of the jamming position is carried out to obtain a more accurate phase of jamming delay by utilizing the sparsity of the jamming signal and the characteristics of low Signal-to-Interference Ratio (SIR). Then, the spectrum of the interference signal is reconstructed by the obtained slope of interference frequency modulation and phase delay. Based on this, the orthogonal matched filter is designed to suppress the interference signal in the frequency domain and reconstruct the undistorted scene image. Finally, computer simulation experiments verify the effectiveness of the proposed method.
- Anti-jamming /
- FM slope mismatch jamming /
- Sparse /
- Orthogonal matched filtering

HTML全文

图 1 算法流程示意图

下载: 全尺寸图片幻灯片

图 2 正交匹配滤波影响因子关系曲线

下载: 全尺寸图片幻灯片

图 3 SIR对频域陷波法干扰抑制比的影响

下载: 全尺寸图片幻灯片

图 4 点目标成像干扰抑制效果对比

下载: 全尺寸图片幻灯片

图 5 干扰抑制成像对比实验

下载: 全尺寸图片幻灯片

表 1 实验参数

参数	数值	参数	数值
载频	3 GHz	距离向采样点	1024
信号带宽	100 MHz	脉冲数	512
脉冲宽度	2 μs	脉冲重复频率	3 kHz
采样频率	120 MHz	干扰点源数量	1
平台速度	50 m/s	调频斜率失配比	0.8

下载: 导出CSV

参考文献(18)

保铮, 邢孟道, 王彤. 雷达成像技术[M]. 北京: 电子工业出版社, 2005.

BAO Zheng, XING Mengdao, and WANG Tong. Radar Imaging Technology[M]. Beijing: Publishing House of Electronics Industry, 2005.

李煜, 陈杰, 张渊智. 合成孔径雷达海面溢油探测研究进展[J]. 电子与信息学报, 2019, 41(3): 751–762. doi: 10.11999/JEIT180468

LI Yu, CHEN Jie, and ZHANG Yuanzhi. Progress in research on marine oil spills detection using synthetic aperture radar[J]. Journal of Electronics &Information Technology, 2019, 41(3): 751–762. doi: 10.11999/JEIT180468

党彦锋, 梁毅, 别博文, 等. 俯冲段大斜视SAR子孔径成像二维空变校正方法[J]. 电子与信息学报, 2018, 40(11): 2621–2629. doi: 10.11999/JEIT180021

DANG Yanfeng, LIANG Yi, BIE Bowen, et al. Two-dimension space-variance correction approach for diving highly squinted SAR imaging with sub-aperture[J]. Journal of Electronics &Information Technology, 2018, 40(11): 2621–2629. doi: 10.11999/JEIT180021

纪朋徽, 代大海, 吴昊, 等. SAR成像电子对抗技术综述[J]. 无线电工程, 2019, 49(6): 508–513. doi: 10.3969/j.issn.1003-3106.2019.06.012

JI Penghui, DAI Dahai, WU Hao, et al. Review of SAR imaging electronic countermeasures[J]. Radio Engineering, 2019, 49(6): 508–513. doi: 10.3969/j.issn.1003-3106.2019.06.012

杨立波, 高仕博, 胡瑞光, 等. 合成孔径雷达相干与非相干干扰性能分析[J]. 系统工程与电子技术, 2018, 40(11): 2444–2449. doi: 10.3969/j.issn.1001-506X.2018.11.09

YANG Libo, GAO Shibo, HU Ruiguang, et al. Performance analysis of coherent jamming and non-coherent jamming against SAR[J]. Systems Engineering and Electronics, 2018, 40(11): 2444–2449. doi: 10.3969/j.issn.1001-506X.2018.11.09

吴一戎, 胡东辉. 一种新的合成孔径雷达压制干扰方法[J]. 电子与信息学报, 2002, 24(11): 1664–1667.

WU Yirong and HU Donghui. A new noise jamming approach to SAR[J]. Journal of Electronics &Information Technology, 2002, 24(11): 1664–1667.

崔永辉, 高俊尧, 李明良, 等. LFM脉压雷达调频斜率失配干扰技术研究[J]. 空军预警学院学报, 2016, 30(2): 98–101. doi: 10.3969/j.issn.2095-5839.2016.02.006

CUI Yonghui, GAO Junyao, LI Mingliang, et al. Research on FM slope mismatch jamming of LFM pulse compression radar[J]. Journal of Air Force Early Warning Academy, 2016, 30(2): 98–101. doi: 10.3969/j.issn.2095-5839.2016.02.006

齐维孔, 禹卫东. 距离向DBF-SAR系统抗欺骗干扰研究[J]. 电子与信息学报, 2010, 32(12): 2830–2835.

QI Weikong and YU Weidong. Research on countering deceptive jamming with range DBF-SAR system[J]. Journal of Electronics &Information Technology, 2010, 32(12): 2830–2835.

刘力, 杨小鹏. 稳健的相干干扰抑制算法[J]. 信号处理, 2017, 33(12): 1555–1561. doi: 10.16798/j.issn.1003-0530.2017.12.005

LIU Li and YANG Xiaopeng. Robust algorithm to suppress coherent jamming[J]. Journal of Signal Processing, 2017, 33(12): 1555–1561. doi: 10.16798/j.issn.1003-0530.2017.12.005

曾铮, 张福博, 陈龙永, 等. 基于多输入多输出合成孔径雷达的二维混合基线抗欺骗干扰方法[J]. 雷达学报, 2019, 8(1): 90–99. doi: 10.12000/JR18118

ZENG Zheng, ZHANG Fubo, CHEN Longyong, et al. A two-dimensional mixed baseline method based on MIMO-SAR for countering deceptive Jamming[J]. Journal of Radars, 2019, 8(1): 90–99. doi: 10.12000/JR18118

李兵, 洪文. SAR线性调频脉冲干扰抑制研究[J]. 遥测遥控, 2004, 25(4): 15–19. doi: 10.13435/j.cnki.ttc.001740

LI Bing and HONG Wen. Study of suppressing linear FM pulse jamming to SAR[J]. Journal of Telemetry,Tracking,and Command, 2004, 25(4): 15–19. doi: 10.13435/j.cnki.ttc.001740

王悦, 盛卫星, 陈向炜. 平面天线阵快速正交投影波束形成算法[J]. 雷达科学与技术, 2019, 17(3): 339–344. doi: 10.3969/j.issn.1672-2337.2019.03.017

WANG Yue, SHENG Weixing, and CHEN Xiangwei. A fast orthogonal projection beamforming algorithm for planar array[J]. Radar Science and Technology, 2019, 17(3): 339–344. doi: 10.3969/j.issn.1672-2337.2019.03.017

刘明. 基于压缩感知的雷达信号处理技术研究[J]. 信息通信, 2017(12): 8–9. doi: 10.3969/j.issn.1673-1131.2017.12.003

LIU Ming. Research on radar signal processing technology based on compressed sensing[J]. Information &Communications, 2017(12): 8–9. doi: 10.3969/j.issn.1673-1131.2017.12.003

李少东, 杨军, 陈文峰, 等. 基于压缩感知理论的雷达成像技术与应用研究进展[J]. 电子与信息学报, 2016, 38(2): 495–508. doi: 10.11999/JEIT150874

LI Shaodong, YANG Jun, CHEN Wenfeng, et al. Overview of radar imaging technique and application based on compressive sensing theory[J]. Journal of Electronics &Information Technology, 2016, 38(2): 495–508. doi: 10.11999/JEIT150874

DONOHO D L. Compressed sensing[J]. IEEE Transactions on Information Theory, 2006, 52(4): 1289–1306. doi: 10.1109/TIT.2006.871582

李敬勇. 对线性调频脉冲压缩雷达干扰的时域分析[J]. 电子信息对抗技术, 1998, 13(3): 15–20.

LI Jingyong. Time domain analysis of jamming to LFM pulse compression radar[J]. Electronic Information Warfare Technology, 1998, 13(3): 15–20.

胡长雨, 汪玲, 朱栋强. 结合字典学习技术的ISAR稀疏成像方法[J]. 电子与信息学报, 2019, 41(7): 1735–1742. doi: 10.11999/JEIT180747

HU Changyu, WANG Ling, and ZHU Dongqiang. Sparse ISAR imaging exploiting dictionary learning[J]. Journal of Electronics &Information Technology, 2019, 41(7): 1735–1742. doi: 10.11999/JEIT180747

黄振, 柏正尧. ROMP的正则化分析研究[J]. 南阳理工学院学报, 2018, 10(4): 51–55. doi: 10.3969/j.issn.1674-5132.2018.04.011

HUANG Zhen and BAI Zhengyao. Study on the analysis of ROMP’s regularization[J]. Journal of Nanyang Institute of Technology, 2018, 10(4): 51–55. doi: 10.3969/j.issn.1674-5132.2018.04.011

施引文献

资源附件(0)

访问统计