红外与毫米波学报, 2015, 34 (4): 505, 网络出版: 2015-10-22  

基于单频信号的662 GHz多普勒雷达层析成像

T-ray tomography using single-tone Doppler radar at 662 GHz
江舸 1,2,*成彬彬 1,2陈鹏 1,2安健飞 1,2张健 1,2
作者单位
1 中国工程物理研究院 电子工程研究所, 四川 绵阳 621999
2 中国工程物理研究院 太赫兹研究中心, 四川 绵阳 621999
摘要
首先介绍了多普勒雷达层析成像的原理及该成像方法的极限分辨率理论推导, 并通过仿真获得了单频信号的点目标扩展函数(PSF), 验证了该成像方法在单频条件下的理论极限分辨率为波长的四分之一.然后, 介绍了中物院构建的662GHz单频雷达系统, 并针对该实验系统设计了基于卷积反投影的多普勒雷达层析成像算法.最后, 通过实验在太赫兹频段验证了多普勒雷达层析成像的有效性, 并利用测量获得的360°全姿态回波信号数据给出了分辨率优于1 cm的成像结果.
Abstract
In this paper, the Doppler radar tomography is investigated and the theoretical spatial resolution is analyzed. Then the algorithm of the Doppler radar tomography based on convolution back-projection method was proposed. Finally, some measurement results of imaging using 662 GHz single-tone signals were presented.
参考文献

[1] Cooper K B, Dengler R J, Llombart N, et al. THz Imaging Radar for Standoff Personnel Screening [J]. IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2011,1(1):169-182.

[2] Stanko S, Caris M, Wahlen A, Sommer R, et al. Millimeter resolution with radar at lower terahertz [C]. 14th International Radar Symposium (IRS), 2013: 235-238.

[3] Goyette T M, Dickinson J C, Waldman J, et al. Three Dimensional Fully Polarimetric W-band ISAR Imagery of Scale-Model Tactical Targets Using a 1.56 THz Compact Range[C]. Proc. SPIE 2003, 5095: 66-74.

[4] Danylov A A, Goyette T M, Waldman J, et al. Terahertz inverse synthetic aperture radar (ISAR) imaging with a quantum cascade laser transmitter[J]. OPTICS EXPRESS, 2010,18(5):16264-16272.

[5] XU Hao. The Radar Imaging Based on Space Spectrum and Temporal-Spatial Stochastic Radiation Field[D]. He-fei:University of science and technology of China (徐浩. 基于空间谱理论和时空两维随机辐射场的雷达成像研究. 中国科学技术大学博士学位论文),2011.

[6] Mensa D L, Halevy S, Wade G. Coherent Doppler tomography for microwave imaging [J]. Proceedings of the IEEE, 1983,71(2):254-261.

[7] Fliss G G. Tomographic radar imaging of rotating structures [C]. SPIE, 1992,1630: 199-207.

[8] Wicks M C, Himed B, Bracken L J E, et al. Ultra narrow band adaptive tomographic radar [C]. IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2005: 36-39.

[9] Toru Sato. Shape estimation of space debris using single-range Doppler interferometry[J]. IEEE Transactions on Geoscience and Remote Sensing, 1999,37(2):1000-1005.

[10] DING Xiao-Feng, FAN Mei-Mei, WEI Xi-Zhang, et al. Narrowband imaging method for spatial precession cone-shaped targets[J]. Sci Chian Sci(丁小峰,范梅梅,魏玺章,黎湘,肖怀铁. 空间进动锥体目标窄带雷达成像算法. 中国科学:技术科学),2010, 40(6):686-694.

[11] Tran H T, Melino R. Application of the fractional fourier transform and S-method in Doppler radar tomography [R]. 2010.

[12] CHENG Bin-Bin, JIANG Ge, CHENG Peng, et al. 0.67 THz high resolution imaging radar[J]. Journal of Terahertz Science and Electronic Information Technology (成彬彬,江舸,陈鹏等. 0.67THz高分辨力成像雷达. 太赫兹科学与电子信息学报), 2013,11(1):7-11.

[13] HUANG Pei-Kang, YIN Hong-Cheng, XU Xiao-Jian. Radar target characteristics[M]. Bei-jing: Publishing House of Electronic Industry (黄培康,殷红成,许小剑. 雷达目标特性. 北京:电子工业出版社),2010.

[14] FAN Qin-Shan, et al. Mathematics handbook[M]. Bei-jing: Higher education press (范钦珊等. 数学手册. 北京:高等教育出版社), 2002.

[15] LIU Yuan-Peng, ZHANG Feng-Shou. Cone beam CT imaging system[M]. Bei-jing: Intellectual Property Publishing House (刘元朋,张丰收. 锥束计算机断层成像系统. 北京:知识产权出版社),2008.

[16] JIANG Ge, CHENG Bin-Bin, ZHANG Jian. 0.14 THz radar imaging based Radar Cross Section measurement[J]. Journal of Terahertz Science and Electronic Information Technology(江舸,成彬彬,张健. 基于0.14THz成像雷达的RCS测量,太赫兹科学与电子信息学报),2014,12(1):19-23.

[17] ZHAO Jing-Chen, HONG Tao. Application of metallic sphere in rotator ISAR imaging[J]. Acta Armamentarii (赵京城,洪韬. 金属球在转台逆合成孔径雷达成像中的应用. 兵工学报),2010,31(12):1617-1621.

江舸, 成彬彬, 陈鹏, 安健飞, 张健. 基于单频信号的662 GHz多普勒雷达层析成像[J]. 红外与毫米波学报, 2015, 34(4): 505. JIANG Ge, CHENG Bin-Bin, CHEN Peng, AN Jian-Fei, ZHANG Jian. T-ray tomography using single-tone Doppler radar at 662 GHz[J]. Journal of Infrared and Millimeter Waves, 2015, 34(4): 505.

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