基于信号结构特点的外源雷达干扰方法研究

万显荣; 吕敏; 谢德强; 胡仕波

doi:10.12000/JR20124

基于信号结构特点的外源雷达干扰方法研究

DOI: 10.12000/JR20124

武汉大学电子信息学院武汉 430072

基金项目: 国家自然科学基金(61931015, 61701350)，国家重点研发计划(2016YFB0502403)，湖北省科技创新项目(2019AAA061)，中国博士后创新人才支持计划(BX201600117)，中央高校基础研究项目(2042019kf1001)

详细信息

作者简介:
万显荣(1975–)，男，湖北天门人，教授，博士生导师。2005年在武汉大学获得博士学位，现担任武汉大学电子信息学院教授、博士生导师，主要研究方向为新体制雷达设计，如外辐射源雷达系统、高频天波雷达系统及阵列信号处理。E-mail: xrwan@whu.edu.cn

吕　敏(1991–)，男，安徽宣城人，博士研究生，主要研究方向为外辐射源雷达信号处理、目标跟踪和信息融合。E-mail: mlv@whu.edu.cn

谢德强(1995–)，男，贵州平塘人，博士研究生，主要研究方向为外辐射源雷达系统设计和雷达信号处理。E-mail: xdq2013@whu.edu.cn

胡仕波(1996–)，男，贵州遵义人，博士研究生，主要研究方向为外辐射源雷达系统设计和雷达信号处理。E-mail: hushibo@whu.edu.cn

通讯作者:
万显荣 xrwan@whu.edu.cn

责任主编：王俊 Corresponding Editor: WANG Jun
中图分类号: TN958.57
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出版历程
- 收稿日期: 2020-09-02
- 修回日期: 2020-11-08
- 网络出版日期: 2020-12-28

Jamming Method of Passive Radar Systems Based on Characteristics of Signal Structure

School of Electronic Information, Wuhan University, Wuhan 430072, China

Funds: The National Natural Science Foundation of China (61931015, 61701350), The National Key Research and Development Plan of China (2016YFB0502403), The Technological Innovation Project of Hubei Province of China (2019AAA061), The Postdoctoral Innovative Talent Support Program of China (BX201600117), The Fundamental Research Funds for the Central Universities (2042019kf1001)

More Information

Corresponding author: WAN Xianrong, xrwan@whu.edu.cn

摘要

摘要: 雷达及其对抗技术在雷达系统发展道路上相互促进，不断进步。近年来，外辐射源雷达凭借其优异的性能受到了国内外研究机构的广泛关注，相关技术得到飞速发展，部分设备已投入使用，但针对该新型雷达的干扰技术研究较少。该文基于辐射源信号结构，分析其信号组成，提出了一种基于信号结构特点的外辐射源雷达干扰方法。以数字广播电视外辐射源雷达为例，结合外辐射源雷达干扰模型，在所提方法下，干扰信号将在距离多普勒谱上形成干扰峰或干扰条带，可有效遮蔽目标，并形成虚假航迹，实现了对外辐射源雷达的干扰目的。仿真结果表明了干扰信号的特性和对目标干扰的有效性，为所提干扰方法在外辐射源雷达中的实际应用奠定基础。所提方法不仅适用于国内外数字广播电视外辐射源雷达，同时可扩展应用于其他类型的外辐射源雷达。
- 雷达对抗 /
- 外辐射源雷达 /
- 干扰 /
- 信号结构 /
- 数字广播电视
Abstract: Radar and its countermeasure technology promote each other and make continuous progress in the development of radar system. Recently, passive radar systems have received extensive attention by research institutes at home and abroad owing to their excellent performance. Moreover, the relevant technologies have been developed rapidly with some equipment being placed into operation. However, there is a lack of research on the jamming technology for this new-type radar. Here, we provide an analysis of the signal component based on the structure of radiation source signal. Next, we propose a passive radar jamming method based on the characteristic of signal structure, taking digital broadcasting television-based passive radar as an example. In the proposed passive radar jamming model, the jamming signal produces an interference peak or interference band in the range-Doppler map. These interference peaks or bands effectively mask the target and lead to a false track, thereby achieving the goal of jamming the passive radar system. Both the characteristics of the jamming signal and the effectiveness of the jamming method are verified by the simulation results. Moreover, the results presented here establish the foundation for practical application of a passive radar jamming signal. The proposed method could be applied into both the digital broadcasting television-based passive radar at home and abroad as well as other types of passive radar.
- Radar countermeasure /
- Passive radar /
- Jamming /
- Signal structure /
- Digital broadcasting television

HTML全文

图 1 DTMB信号结构示意图

Figure 1. The sketch of signal structure for DTMB

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图 2 DVB-T信号帧结构示意图

Figure 2. The sketch of signal structure for DVB-T

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图 3 CMMB信号结构示意图

Figure 3. The sketch of signal structure for CMMB

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图 4 帧头干扰下DTMB外辐射源雷达的距离多普勒谱

Figure 4. The range-Doppler map for DTMB-based passive radar under the jamming of the frame header

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图 5 系统信息干扰下DTMB外辐射源雷达的距离多普勒谱

Figure 5. The range-Doppler map for DTMB-based passive radar under the jamming of the system information

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图 6 帧头&系统信息干扰下DTMB外辐射源雷达的距离多普勒谱

Figure 6. The range-Doppler map for DTMB-based passive radar under the jamming of the frame header and the system information

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图 7 离散导频干扰下DVB-T外辐射源雷达的距离多普勒谱

Figure 7. The range-Doppler map for DVB-T-based passive radar under the jamming of the scatter pilot

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图 8 连续导频干扰下DVB-T外辐射源雷达的距离多普勒谱

Figure 8. The range-Doppler map for DVB-T-based passive radar under the jamming of the continuous pilot

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图 9 导频干扰下DVB-T外辐射源雷达的距离多普勒谱

Figure 9. The range-Doppler map for DVB-T-based passive radar under the jamming of the pilot

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图 10 信标干扰下CMMB外辐射源雷达的距离多普勒谱

Figure 10. The range-Doppler map for CMMB-based passive radar under the jamming of the beacon

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图 11 导频干扰下CMMB外辐射源雷达的距离多普勒谱

Figure 11. The range-Doppler map for CMMB-based passive radar under the jamming of the pilot

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图 12 控制信道干扰下CMMB外辐射源雷达的距离多普勒谱

Figure 12. The range-Doppler map for CMMB-based passive radar under the jamming of the control channel

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图 13 干扰存在情况下距离多普勒谱多场数据累积结果

Figure 13. The cumulative results of multiple-frame data of the range-Doppler map with the jamming

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图 14 干扰存在情况下外辐射源雷达目标跟踪结果

Figure 14. The target tracking results of passive radar with the jamming

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