Identification of Terahertz Absorption Spectra of Illicit Drugs Using Radial Basis Function Neural Networks

Liang Meiyan; Zhao Shusen; Shen Jingling

[1] Sun Jinhai, Shen Jingling, Liang Laishun et al.. Experimental investigation on terahertz spectra of amphetamine type stimulants[J]. Chin. Phys. Lett., 2005, 22(12): 3176～3178

[2] Li Ning, Shen Jingling, Sun Jinghai et al.. Study on the THz spectrum of methamphetamine[J]. Opt. Express, 2005, 13(18): 6750～6755

[3] Wang Guangqin, Shen Jingling, Jia Yan. Vibrational spectra of ketamine hydrochloride and 3, 4-methylenedioxymethamphetamine in terahertz range[J]. J. Appl. Phys., 2007, 102(1): 013106

[4] Lu Meihong, Shen Jingling, Li Ning et al.. Detection and identification of illicit drugs using terahertz imaging[J]. J. Appl. Phys., 2006, 100(10): 103104

[5] Kodo Kawase, Yuichi Ogawa, Yuuki Watanable et al.. Non-destructive terahertz imaging of illicit drugs using spectral fingerprints[J]. Opt. Express, 2003, 11(20): 2549～2554

[6] Kodo Kawase. Terahertz imaging for drug detection and largescale integrated circuit inspection[J]. Optics and Photonics News, 2004, 15(10): 35～39

[7] B. Fischer, M. Hoffmann, H. Helm et al.. Chemical recognition in terahertz time-domain spectroscopy and imaging[J]. Semicond. Sci. Technol., 2005, 20(7): S246～S253

[8] Sun Jinhai, Zhao Guozhong, Zhang Liangliang et al.. Effect of applied electric and magnetic field on THz radiation[J]. Chinese J. Lasers, 2005, 32(2): 192～195

[9] Jia Yan, Chen Sijia, Li Ning et al.. Identification of Terahertz absorption spectra of illicit drugs using back propagation neural networks[J]. Chinese J. Lasers, 2007, 34(5): 719～722

[10] Liang Meiyan, Shen Jingling, Wang Guangqin. Identification of illicit drugs by using SOM neural networks[J]. J. Phys. D: Appl. Phys., 2008, 41(13): 135306

[11] Oliveira F, Barat R, Shulkin B et al.. Neural network analysis of Terahertz spectra of explosives and bio-agents[C]. SPIE, 2003, 5070: 60

[12] Oliveira F, Barat R, Shulkin B et al.. Analysis of Terahertz spectral images of explosives and bio-agents using trained neural networks[C]. SPIE, 2004, 5411: 45

[13] FEI SI Science and Technology REsearch Center. The Theory of Neural Network and Realization by Matlab 7[M]. Beijing: Electronics Industry Press, 2006. 116～127

[14] Han Liqun. The Theory, Design and Application of Artificial Neural Networks[M]. Beijing: Chemical Industry Press, 2007. 164～177