太赫兹雷达技术

王宏强; 邓彬; 秦玉亮

doi:10.12000/JR17107

太赫兹雷达技术

DOI: 10.12000/JR17107

国防科技大学电子科学学院长沙 410073

基金项目: 国家部委基金

详细信息

作者简介:
王宏强(1970–)，男，出生于陕西省宝鸡市，国防科技大学电子科学学院研究员，973项目技术首席、装发部目标及其环境特性专业组专家、军委科技委国防科技创新特区主题专家、原军口863专家、中国兵工学会太赫兹应用技术专业委员会委员；入选国家“百千万”人才工程，并被授予“有突出贡献中青年专家”荣誉称号；入选教育部新世纪优秀人才支持计划、军队高层次科技创新人才工程——学科拔尖人才培养对象；获中国科协“求是杰出青年奖——实用工程奖”。获国家技术发明二等奖1项、国家科技进步二等奖2项、军队科技进步一等奖4项、军队科技进步二等奖1项。从事太赫兹技术、雷达目标识别、雷达信号处理等研究

邓　彬(1981–)，男，出生于山东省邹城市，国防科技大学电子科学学院副研究员，从事合成孔径雷达、太赫兹雷达微动与成像等研究

秦玉亮(1980–)，男，生于山东省潍坊市，国防科技大学电子科学学院副研究员，主要从事太赫兹雷达、雷达关联成像和电磁涡旋方面研究

通讯作者:
邓彬 dengbin@nudt.edu.cn

中图分类号: TN95
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出版历程
- 收稿日期: 2017-11-20
- 修回日期: 2017-12-29
- 网络出版日期: 2018-02-28

Review of Terahertz Radar Technology

College of Electronic Science, National University of Defense Technology, Changsha 410073, China

Funds: The National Ministries Foundation

摘要

摘要: 太赫兹雷达具有带宽大、分辨率高、多普勒敏感、抗干扰等独特优势，是目标探测领域的重要发展方向。该文首先回顾和介绍了电子学和光学太赫兹雷达系统历史、现状和最新进展，其次对太赫兹雷达目标特性从机理、计算、测量3个方面进行了梳理和概要介绍，同时阐述了太赫兹ISAR、SAR、阵列和孔径编码成像研究状况，简要介绍了太赫兹雷达在预警探测、安检反恐等领域的应用，最后对太赫兹雷达技术的发展方向进行了展望。
- 太赫兹雷达 /
- 散射特性 /
- 雷达散射截面(RCS) /
- 成像
Abstract: Terahertz radar has unique advantages, including large bandwidth, high resolution, Doppler sensitivity, and anti-interference; it is a significant development in the field of target detection. Herein, the history of electronic and optical terahertz radar systems is introduced, and the current situation and latest progress pertaining to these systems are reviewed. The target characteristics of terahertz radar are summarized based on its mechanism, calculation, and measurement. Moreover, the current research status of terahertz SAR, ISAR, array, and aperture encoding imaging are discussed, and the applications of terahertz radar, such as early warning detection and security anti-terrorism systems, are briefly introduced. Finally, the development direction of terahertz radar technology is forecast.
- Terahertz radar /
- Scattering characteristics /
- Radar Cross Section (RCS) /
- Imaging

HTML全文

图 1 太赫兹波产生辐射方式

Figure 1. The generating ways of terahertz wave

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图 2 线阵扫描合成孔径雷达

Figure 2. The linear array scanning SAR

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图 3 225 GHz脉冲雷达与测量结果

Figure 3. The 225 GHz pulse radar and tracked result

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图 4 670 GHz雷达框图与成像结果

Figure 4. The 670 GHz radar and the imaging result

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图 5 太赫兹雷达芯片

Figure 5. The terahertz radar on chip

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图 6 2.4 THz成像雷达框图与成像结果

Figure 6. The 2.4 THz radar and the imaging result

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图 7 太赫兹雷达系统发展历程

Figure 7. The developing process of terahertz radar

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图 8 T5M3目标的RCS测量结果与X-Patch计算结果比较

Figure 8. The RCS comparing results of T5M3 and X-Patch

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图 9 STL实验室对3份不同粗糙样品的散射系数测量结果

Figure 9. The dissipation coefficient of three rough samples

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图 10 仿真数据与测量数据的重建图像比较

Figure 10. The reconstructed image of the simulation and the experiment

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图 11 频率0.6 THz时T64坦克2维多普勒成像

Figure 11. The two-dimensional Doppler imaging of T64 based on 0.6 THz

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图 12 粗糙立方体模型及成像结果

Figure 12. The model and imaging of rough cube

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图 13 太赫兹雷达成像方式

Figure 13. The imaging ways of terahertz radar

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图 14 140 m距离的自行车目标转台成像

Figure 14. The turntable imaging of bicycle with 140 m

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图 15 进动弹头目标ISAR成像结果

Figure 15. The imaging result of precession warhead

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图 16 MIRANDA-300雷达车载成像结果

Figure 16. The vehicle imaging of MIRANDA-300 radar

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图 17 国防科技大学车载THz-SAR系统及成像结果

Figure 17. The vehicle THz-SAR system and imaging of NUDT

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图 18 TeraSCREEN项目拟采用的阵列构型

Figure 18. The intending array configuration of TeraSCREEN

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图 19 0.2 THz雷达携带手枪人体模型成像结果

Figure 19. The imaging of the people carried pistol by 0.2 THz

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图 20 工物院340 GHz-MIMO成像系统实物图与成像结果

Figure 20. The picture and imaging of 340 GHz-MIMO of industrial institute

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图 21 英国伯明翰大学实验系统及结果

Figure 21. The experimental system and result of University of Birmingham

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表 1 220 GHz电子学器件发展水平(2017年)

Table 1. The development status of 220 GHz electronic devices (2017)

器件类型		国外	国内
固态器件	倍频器	效率>20%，功率>100 mW	效率约10%，功率约20 mW
	固态功放	功率约180 mW	功率约10 mW，带宽6 GHz
	分谐波混频器	噪声系数7 dB，变频损耗约6 dB	噪声系数6 dB，变频损耗约7 dB
	低噪声放大器	噪声系数约5 dB，增益约17 dB	无
电真空器件	行波管功放	功率约60 W，增益约30 dB，带宽>15 GHz	功率约1.2 W，增益约20 dB，带宽>10 GHz

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