| 光谱学与光谱分析 |
|
|
|
|
|
| The Error Analysis and Experimental Verification of Laser Radar Spectrum Detection and Terahertz Time Domain Spectroscopy |
| LIU Wen-tao1，LI Jing-wen1，SUN Zhi-hui2 |
1. Electronic and Information Engineering Institute, Beihang University, Beijing 100191, China
2. Institute of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China |
|
|
|
|
Abstract Terahertz waves (THz,T-ray) lie between far-infrared and microwave in electromagnetic spectrum with frequency from 0.1 to 10 THz. Many chemical agent explosives show characteristic spectral features in the terahertz. Compared with conventional methods of detecting a variety of threats, such as weapons and chemical agent, THz radiation is low frequency and non-ionizing, and does not give rise to safety concerns. The present paper summarizes the latest progress in the application of terahertz time domain spectroscopy (THz-TDS) to chemical agent explosives. A kind of device on laser radar detecting and real time spectrum measuring was designed which measures the laser spectrum on the bases of Fourier optics and optical signal processing. Wedge interferometer was used as the beam splitter to wipe off the background light and detect the laser and measure the spectrum. The result indicates that 10 ns laser radar pulse can be detected and many factors affecting experiments are also introduced. The combination of laser radar spectrum detecting, THz-TDS, modern pattern recognition and signal processing technology is the developing trend of remote detection for chemical agent explosives.
|
|
Received: 2009-02-26
Accepted: 2009-05-28
|
|
|
|
Corresponding Authors:
wentaoliu1983@126.com
E-mail: LIU Wen-tao
|
|
[1] LIU Gui-feng, ZHAO Hong-wei, GE Min, et al(刘桂锋，赵红卫，葛 敏，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2008, 28(5): 966.
[2] WANG Shao-hong, XU Jing-zhou, WANG Li, et al(王少宏，许景周，汪 力，等). Physics(物理)，2001, 30(10): 612.
[3] Fletcher J R. Opt. Express, 2002, 10(24): 1425.
[4] Speecbore T. Laser Radar. Applied Optics, 1972, 11(2): 18.
[5] Zhang Cunlin, Mu Kaijun, Jiang Xue, et al. Proceedings of SPIE, 2008, 6840: 84.
[6] Zhou Qingli, Zhang Cunlin, Li Weiwei, et al. Proceedings of SPIE, 2008, 6840: 168.
[7] Ha T M, Zimmermann M, Bunke H. Pattern Recognition, 1998, 31(3): 257.
[8] Kemp M C, Taday P F, Cole B E, et al. Proceedings of SPIE, 2003, 5070: 44.
[9] Yamamoto K, Yanmaguchi M, Miyamaru F, et al. Jpn. J. Appl. Phys., 2004, 43: L414.
[10] Cook D J, Decker B K, Maislin G, et al. Proceedings of SPIE, 2004, 5354: 55.
[11] Shen Y C, Lo T, Taday P F, et al. Appl. Phys. Lett., 2003, 83: 800.
[12] Watanabe Y, Kawase K, Ikari T, et al. Opt. Communication, 2004, 234: 125.
[13] Liu H B, Chen Y Q. Bastiaans G J, et al. Opt. Express, 2006, 14(1): 415.
[14] Anderson D J. Proceedings of SPIE, 2003, 5074: 11.
[15] XIONG Hui-feng(熊辉丰). Laser Radar(激光雷达). Beijing: Aerospace Press(北京:宇航出版社), 1994. 21.
[16] Chao Tienhsin, Zhou Hanying. Aerospace Conference, 2007, IEEE: 1.
[17] Osipov S I, Lapchuk V P. Proceedings of SPIE, 1997, 3237: 158.
[18] Dakin John, Culshaw Brian. Optical Fiber Semsors. Boston: MA Artech House. 1988.
[19] Ren S X, Gao L. Talanta, 2000, 50: 1163.
|
| [1] |
WAN Mei, ZHANG Jia-le, FANG Ji-yuan, LIU Jian-jun, HONG Zhi, DU Yong*. Terahertz Spectroscopy and DFT Calculations of Isonicotinamide-Glutaric Acid-Pyrazinamide Ternary Cocrystal[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3781-3787. |
| [2] |
DUAN Ming-xuan1, LI Shi-chun1, 2*, LIU Jia-hui1, WANG Yi1, XIN Wen-hui1, 2, HUA Deng-xin1, 2*, GAO Fei1, 2. Detection of Benzene Concentration by Mid-Infrared Differential
Absorption Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3351-3359. |
| [3] |
LI Yang1, LI Xiao-qi1, YANG Jia-ying1, SUN Li-juan2, CHEN Yuan-yuan1, YU Le1, WU Jing-zhu1*. Visualisation of Starch Distribution in Corn Seeds Based on Terahertz Time-Domain Spectral Reflection Imaging Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2722-2728. |
| [4] |
WANG Jie1, 2, 3, LIU Wen-qing1, 2, 4, ZHANG Tian-shu1, XIA Jian-dong5, DENG Wei5, HU Wen-jie5. Collaborative Observation of Vertical Structures of Ozone and Aerosol in a Dust Episode Based on Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2258-2265. |
| [5] |
ZHENG Zhi-jie1, LIN Zhen-heng1, 2*, XIE Hai-he2, NIE Yong-zhong3. The Method of Terahertz Spectral Classification and Identification for Engineering Plastics Based on Convolutional Neural Network[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1387-1393. |
| [6] |
BAI Jie1, 2, NIU Zheng1, 2*, BI Kai-yi1, 2, WANG Ji1, 2, HUANG Yan-ru2, 3, SUN Gang1. Bi-Directional Reflection Characteristic of Vegetation Leaf Measured by Hyperspectral LiDAR and Its Impact on Chlorophyll Content Estimation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1598-1605. |
| [7] |
WANG Yu-ye1, 2, LI Hai-bin1, 2, JIANG Bo-zhou1, 2, GE Mei-lan1, 2, CHEN Tu-nan3, FENG Hua3, WU Bin4ZHU Jun-feng4, XU De-gang1, 2, YAO Jian-quan1, 2. Terahertz Spectroscopic Early Diagnosis of Cerebral Ischemia in Rats[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 788-794. |
| [8] |
LI Feng1, LIN Jing-jing2, YUN Jie3, ZHANG Shuai4*, WANG He5, ZHANG Hai4, TAO Zong-ming6. Analysis on Variation Characteristics of Air Pollution in Jining City Based on Lidars Networking Observation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3467-3475. |
| [9] |
CAO Yu-qi2, KANG Xu-sheng1, 2*, CHEN Piao-yun2, XIE Chen2, YU Jie2*, HUANG Ping-jie2, HOU Di-bo2, ZHANG Guang-xin2. Research on Discrimination Method of Absorption Peak in Terahertz
Regime[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(10): 3058-3062. |
| [10] |
YI Can-can1, 2, 3, 5*, TUO Shuai1, 2, 3, TU Shan1, 2, 3, 4, ZHANG Wen-tao5. UMAP-Assisted Fuzzy C-Clustering Method for Recognition of
Terahertz Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(09): 2694-2701. |
| [11] |
LI Yan1, LIU Qi-hang2, 3, HUANG Wei1, DUAN Tao1, CHEN Zhao-xia1, HE Ming-xia2, 3, XIONG Yu1*. Terahertz Imaging Study of Dentin Caries[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(08): 2374-2379. |
| [12] |
MIAO Shu-guang1, SHAO Dan1*, LIU Zhong-yu2, 3, FAN Qiang1, LI Su-wen1, DING En-jie2, 3. Study on Coal-Rock Identification Method Based on Terahertz
Time-Domain Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1755-1760. |
| [13] |
CAO Yao-yao1, 2, 4, LI Xia1, BAI Jun-peng2, 4, XU Wei2, 4, NI Ying3*, DONG Chuang2, 4, ZHONG Hong-li5, LI Bin2, 4*. Study on Qualitative and Quantitative Detection of Pefloxacin and
Fleroxacin Veterinary Drugs Based on THz-TDS Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1798-1803. |
| [14] |
PAN Zhao1, LI Zong-liang1, ZHANG Zhen-wei2, WEN Yin-tang1, ZHANG Peng-yang1. Defect Detection and Analysis of Ceramic Fiber Composites Based on
THz-TDS Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(05): 1547-1552. |
| [15] |
ZHENG Zhuan-ping, LI Ai-dong, DONG Jun, ZHI Yan, GONG Jia-min. Terahertz Spectroscopic Investigation of Maleic Hydrazide Polymorphs[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(04): 1104-1108. |
|
|
|
|
