Fuzzy Recognition Research on Explosive and Illegal Drug Based on Terahertz Spectroscopy Detection
LIU Wen-tao1，LI Jing-wen1，DU Chun-yan2，SUN Zhi-hui3
1. Electronic and Information Engineering Institute, Beihang University, Beijing 100191, China 2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China 3. Department of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China
Abstract：On the base of absorption spectra in the range from 0.2 to 2.6 THz of seven common dangerous goods using terahertz time-domain spectroscopy (THz-TDS) technique, the THz absorption spectra of seven dangerous goods were identified successfully by fuzzy recognition. Using different feature absorption peaks of explosive and illegal drugs such as RDX, γ-HNIW, DNT, MA and Ketamine as data source of fuzzy cluster analysis, fuzzy similar matrix was built by correlation coefficient, fuzzy equivalent matrix was obtained by the method of transitive closure, standard model bank of THz absorption spectra was formed, and data were preprocessed by range analysis and compute Hamming approach degree. It was concluded that uninspected goods were RDX hidden behind the uniform and MDA. The research indicated that different feature absorption by interactions between molecules and phonon resonance mode is the basis for determining the type and category of dangerous goods, it is feasible to apply fuzzy recognition to the identification of dangerous goods, providing an effective new method for the secure inspection and identification of threats using THz-TDS technique.
刘文涛1，李景文1，杜春燕2，孙志慧3 . 基于太赫兹光谱检测的危险品模糊识别研究[J]. 光谱学与光谱分析, 2010, 30(02): 401-405.
LIU Wen-tao1，LI Jing-wen1，DU Chun-yan2，SUN Zhi-hui3 . Fuzzy Recognition Research on Explosive and Illegal Drug Based on Terahertz Spectroscopy Detection. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(02): 401-405.
[1] Choi M K, Taylor K, Bettermann A, et al. Phys. Med. Biol., 2002, 47: 3777. [2] HU Ying, ZHANG Cun-lin, SHEN Jing-ling, et al(胡 颖，张存林，沈京玲，等). Acta Phys. Sin.(物理学报), 2004, 53: 1772. [3] 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. [4] ZHANG Cun-lin(张村林). Tetahertz Sensing and Imaging(太赫兹感测与成像). Beijing: National Defense Industry Press(北京：国防工业出版社)，2008. 177. [5] Kemp M C, Taday P F, Cole B E, et al. Proc. SPIE, 2003, 5070: 44. [6] Huang F, Schulkin B, Altan H, et al. Appl. Phys. Lett., 2004, 85: 5535. [7] Rice B M, Chabalowski C F. J. Phys. Chem. A, 1997, 101: 8720. [8] Liu H B, Chen Y Q. Bastiaans G J, et al. Opt. Express, 2006, 14(1): 415. [9] Guo L T, Hu Y, Zhang Y, et al. Opt. Express, 2006, 14: 3654. [10] Sun J H, Shen J L, Liang L S, et al. Chin. Phys. Lett., 2005, 22(12): 3176. [11] Li N, Shen J L, Sun J H, et al. Opt. Express, 2005, 13(18): 6750. [12] JIA Yan, CHEN Si-jia, LI Ning, et al(贾 燕，陈思嘉，李 宁，等). Chinese Journal of Lasers(中国激光)，2006, 34: 719. [13] Zhang Cunlin, Mu Kaijun, Jiang Xue, et al. Proceedings of SPIE, 2008, 6840: 84. [14] Zhou Qingli, Zhang Cunlin, Li Weiwei, et al. Proceedings of SPIE, 2008, 6840: 168. [15] Ha T m, Zimmermann M, Bunke H. Pattern Recognition, 1998, 31(3): 257. [16] Hisao Ishibuchi. IEEE Transactions on Industrial Electronics, 2001, 46(6): 1057. [17] LI Zhenquan, Kecman V, Ichikawa A. Fuzzy Sets and Systems, 2002, 130: 291. [18] LI Hongji. Foundation of Fuzzy Math and Practical Algorithm(模糊数学基础及实用算法). Beijing: Science Press(北京：科学出版社), 2005. 209. [19] Jiang Zhiping, Zhang X C. Appl. Phys. Lett., 1998, 72(16): 1945. [20] Fletcher J R. Opt. Express., 2002, 10(24): 1425. [21] Barber J, Hooks D E, Funk D J, et al. Journal of Phys. Chem. A, 2005, 109: 3501.
