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Based on terahertz time-domain spectrscopy (THz-TDS) technology, a broad-band time domain terahertz radar system can be used to do research on scattering characteristics of objects. At present, the optical structure and mechanism of this system-showing the radar detection principle and imaging mechanism-has attracted a lot of interest in the terahertz research field. Based on the femtosecond Ti: sapphire osillators pumped terahertz time-domain spectrscopy system, this paper constructs the first terahertz radar system in this country (0.11.3 THz). System calibration is carried out by measurements on standard metallic spheres. Three military scale models are measured by the Radar system. The shapes of the models are retrieved by the improved back projection algorithm, which verifies the new imaging mechanism based on time domain scattering signal. With high frequency broad band spectrum and high imaging resolution, the terahertz radar would make great contribution to stealth military units design and become a new research platform on terahertz scattering characteristics.
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Keywords:
- terahertz radar /
- radar cross-section /
- back projection imaging /
[1] Siegel P H 2002 IEEE Transactions on Microwave Theory and Techniques 50 910
[2] Zhang TY, Cao JC 2004 Chin. Phys. 13 1742
[3] Xu J Z, Zhang X C 2007 Applications of Terahertz Science and Technology (Beijing: Peking University Press) p206 (in Chinese) [许景周, 张希成2007太赫兹科学技术和应用(北京: 北京大学出版社)第206页]
[4] Yun-shik Lee (translated by Cui W Z) 2012 Principles of Terahertz Science and Technology (Beijing: National Defence Industry Press) p192 (in Chinese) [Yun-Shik Lee著(崔万照译) 2012太赫兹科学与技术原理(北京: 国防工业出版社)第192页]
[5] Gu C, Qu SB, Pei ZB, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801
[6] Tian L, Zhou QL, Zhao K, Shi YL, Zhao DM, Zhao SQ, Zhao H, Bao RM, Zhu SM, Miao Q 2011 Chin. Phys. B 20 010703
[7] Goyette T M, Dickinson J C, Waldman J, Nixon W E 2000 International Society for Optics and Photonics AeroSense, Belgium 2000 p615
[8] DeMartinis G B, Coulombe M J, Horgan T M 2010 Proceedings of the Antenna Measurements and Techniques Association Atlanta, USA 2010 p3
[9] Danylov AA, Goyette T M Waldman 2010 Opt. Express 18 16264
[10] Dengler R J, Cooper K B, Chattopadhyay G Mehdi I, Schlecht E, Skalare A, Chen C, Siegel P H 2007 IEEE/MTT-S International Microwave Symposium Honolulu, USA, 2007 p1371
[11] Chattopadhyay G, Cooper K B, Dengler R, Bryllert T E, Schlecht E, Skalare A, Mehdi I, Siegel P H 2008 Proceedings of 19th International Symposium on Space Terahertz Technology Groningen, Netherlands, 2008 p3 00
[12] Cooper K B, Denglera R J, Chattopadhyay G, Schlecht E, Gill J, Skalare A, Mehdi I, and Siegel P H 2008 IEEE Microw. Wireless Compon. Lett 18 64
[13] Gu S M, Li C, Gao X, Sun Z Y Fang G Y 2012 IEEE Trans. Microw. Theory Techn. 60 3877
[14] Cai YW, Yang C, Zeng GH, Huang X, Wang C, Jiang G, Li RZ, Tao RH, Zhang J, Zhou CM, Yao J 2012 High Power Laser and Particle Beams 24 7 (in Chinese) [蔡英武, 杨陈, 曾耿华, 黄祥, 王成, 江舸, 李如忠, 陶荣辉, 张健, 周传明, 姚军 2012 强激光与粒子束 24 7]
[15] Cheng BB, Jiang K, Chen P, Yang C, Lu B, Cai YW, Deng XJ, Chen Z, Zhang J, Zhou CM 2013 Journal of Terahertz Science and Electronic Information Technology 1 7 (in Chinese) [成彬彬, 江舸, 陈鹏, 杨陈, 陆彬, 蔡英武, 邓贤进, 陈樟, 张健, 周传明2013太赫兹科学与电子信息学报1 7]
[16] Mickan S P, Zhang X C 2003 T-ray International Journal of High Speed Electronics and Systems 13 601
[17] Appleby R, Wallace H B 2007 IEEE transactions on antennas and propagation 55 2944
[18] Grischkowsky D, Keiding S, Exter M, Fattinger Ch 1990 JOSA B 7 2006
[19] McGowan R W, Cheville R A, Grischkowsky D R 2000 IEEE Trans. Microwave Theory & Techn. 48 417
[20] Iwaszczuk K, Heiselberg H, Jepsen P U 2010 Opt. Express 18 26399
[21] Jansen C, Krumbholz N Geisb R, Probst T 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves Busan, Korea 2009 p1
[22] Gente R, Jansen C, Geise R, Peters O 2012 Terahertz Science and Technology, IEEE Transactions on 2 424
[23] Knott E F 1993 Radar cross section measurements (Rleigh: SciTech Publishing) pp16-17
[24] Mie G 1908 Annalen der physik 25 377
[25] Born M, Wolf E 1999 Principles of Optics: Electromagnetic Theory of Propagation, Interference, and Diffraction of Light (Cambridge: Press Syndicate of the University of Cambridge) pp633-644
[26] Huang P K, Yin H C, Xu X J 2005 Radar Target Characteristics (Beijing: Publishing House of Electronics Industry) pp71-72 (in Chinese) [黄培康, 殷红成, 许小剑2005雷达目标特性(北京: 电子工业出版社)第21页, 第71–72页]
[27] Bao Z, Xing M D, Wang T 2005 Radar Imaging Technology (Beijing: Publishing House of Electronics Industry) pp6-18 (in Chinese) [保铮, 邢孟道, 王彤2005雷达成像技术(北京: 电子工业出版社)第6–18页]
[28] Zhang L X, Hu C F 2009 Measurement and Imaging of Radar Target Scattering characteristics (Beijing: China Astronautic Publishing House) p100 (in Chinese) [张麟兮, 胡楚峰2009雷达目标散射特性测试与成像诊断(中国宇航出版社) p100]
[29] Nguyen L, Ressler M, Sichina J 2008 SPIE Defense and Security Symposium International Society for Optics and Photonics orlando, USA 2008 p69470B
[30] Su Y 2001 Ph. D. Dissertation (Changsha: National University of Defense Technology) (in Chinese) [粟毅2001博士学位论文(长沙: 国防科技大学)]
[31] Xu Y Y, Zhang Q Y, Fang G Y 2011 Journal of Electronics & Information Technology 33 1822 (in Chinese) [徐艳云, 张群英, 方广有 2011 电子与信息学报 33 1822]
[32] Ausherman D A, Kozma A, Walker J L, Jones H M, Poggio E C 1984 Aerospace and Electronic Systems, IEEE Transactions on 4 363
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[1] Siegel P H 2002 IEEE Transactions on Microwave Theory and Techniques 50 910
[2] Zhang TY, Cao JC 2004 Chin. Phys. 13 1742
[3] Xu J Z, Zhang X C 2007 Applications of Terahertz Science and Technology (Beijing: Peking University Press) p206 (in Chinese) [许景周, 张希成2007太赫兹科学技术和应用(北京: 北京大学出版社)第206页]
[4] Yun-shik Lee (translated by Cui W Z) 2012 Principles of Terahertz Science and Technology (Beijing: National Defence Industry Press) p192 (in Chinese) [Yun-Shik Lee著(崔万照译) 2012太赫兹科学与技术原理(北京: 国防工业出版社)第192页]
[5] Gu C, Qu SB, Pei ZB, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801
[6] Tian L, Zhou QL, Zhao K, Shi YL, Zhao DM, Zhao SQ, Zhao H, Bao RM, Zhu SM, Miao Q 2011 Chin. Phys. B 20 010703
[7] Goyette T M, Dickinson J C, Waldman J, Nixon W E 2000 International Society for Optics and Photonics AeroSense, Belgium 2000 p615
[8] DeMartinis G B, Coulombe M J, Horgan T M 2010 Proceedings of the Antenna Measurements and Techniques Association Atlanta, USA 2010 p3
[9] Danylov AA, Goyette T M Waldman 2010 Opt. Express 18 16264
[10] Dengler R J, Cooper K B, Chattopadhyay G Mehdi I, Schlecht E, Skalare A, Chen C, Siegel P H 2007 IEEE/MTT-S International Microwave Symposium Honolulu, USA, 2007 p1371
[11] Chattopadhyay G, Cooper K B, Dengler R, Bryllert T E, Schlecht E, Skalare A, Mehdi I, Siegel P H 2008 Proceedings of 19th International Symposium on Space Terahertz Technology Groningen, Netherlands, 2008 p3 00
[12] Cooper K B, Denglera R J, Chattopadhyay G, Schlecht E, Gill J, Skalare A, Mehdi I, and Siegel P H 2008 IEEE Microw. Wireless Compon. Lett 18 64
[13] Gu S M, Li C, Gao X, Sun Z Y Fang G Y 2012 IEEE Trans. Microw. Theory Techn. 60 3877
[14] Cai YW, Yang C, Zeng GH, Huang X, Wang C, Jiang G, Li RZ, Tao RH, Zhang J, Zhou CM, Yao J 2012 High Power Laser and Particle Beams 24 7 (in Chinese) [蔡英武, 杨陈, 曾耿华, 黄祥, 王成, 江舸, 李如忠, 陶荣辉, 张健, 周传明, 姚军 2012 强激光与粒子束 24 7]
[15] Cheng BB, Jiang K, Chen P, Yang C, Lu B, Cai YW, Deng XJ, Chen Z, Zhang J, Zhou CM 2013 Journal of Terahertz Science and Electronic Information Technology 1 7 (in Chinese) [成彬彬, 江舸, 陈鹏, 杨陈, 陆彬, 蔡英武, 邓贤进, 陈樟, 张健, 周传明2013太赫兹科学与电子信息学报1 7]
[16] Mickan S P, Zhang X C 2003 T-ray International Journal of High Speed Electronics and Systems 13 601
[17] Appleby R, Wallace H B 2007 IEEE transactions on antennas and propagation 55 2944
[18] Grischkowsky D, Keiding S, Exter M, Fattinger Ch 1990 JOSA B 7 2006
[19] McGowan R W, Cheville R A, Grischkowsky D R 2000 IEEE Trans. Microwave Theory & Techn. 48 417
[20] Iwaszczuk K, Heiselberg H, Jepsen P U 2010 Opt. Express 18 26399
[21] Jansen C, Krumbholz N Geisb R, Probst T 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves Busan, Korea 2009 p1
[22] Gente R, Jansen C, Geise R, Peters O 2012 Terahertz Science and Technology, IEEE Transactions on 2 424
[23] Knott E F 1993 Radar cross section measurements (Rleigh: SciTech Publishing) pp16-17
[24] Mie G 1908 Annalen der physik 25 377
[25] Born M, Wolf E 1999 Principles of Optics: Electromagnetic Theory of Propagation, Interference, and Diffraction of Light (Cambridge: Press Syndicate of the University of Cambridge) pp633-644
[26] Huang P K, Yin H C, Xu X J 2005 Radar Target Characteristics (Beijing: Publishing House of Electronics Industry) pp71-72 (in Chinese) [黄培康, 殷红成, 许小剑2005雷达目标特性(北京: 电子工业出版社)第21页, 第71–72页]
[27] Bao Z, Xing M D, Wang T 2005 Radar Imaging Technology (Beijing: Publishing House of Electronics Industry) pp6-18 (in Chinese) [保铮, 邢孟道, 王彤2005雷达成像技术(北京: 电子工业出版社)第6–18页]
[28] Zhang L X, Hu C F 2009 Measurement and Imaging of Radar Target Scattering characteristics (Beijing: China Astronautic Publishing House) p100 (in Chinese) [张麟兮, 胡楚峰2009雷达目标散射特性测试与成像诊断(中国宇航出版社) p100]
[29] Nguyen L, Ressler M, Sichina J 2008 SPIE Defense and Security Symposium International Society for Optics and Photonics orlando, USA 2008 p69470B
[30] Su Y 2001 Ph. D. Dissertation (Changsha: National University of Defense Technology) (in Chinese) [粟毅2001博士学位论文(长沙: 国防科技大学)]
[31] Xu Y Y, Zhang Q Y, Fang G Y 2011 Journal of Electronics & Information Technology 33 1822 (in Chinese) [徐艳云, 张群英, 方广有 2011 电子与信息学报 33 1822]
[32] Ausherman D A, Kozma A, Walker J L, Jones H M, Poggio E C 1984 Aerospace and Electronic Systems, IEEE Transactions on 4 363
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