Recognition of conductive objects based on the characteristics of reflected electromagnetic wave
DOI:
https://doi.org/10.3103/S0735272716070025Keywords:
electromagnetic wave diffraction, integral equation technique, probabilistic neural network, wavelet packet transform, object recognitionAbstract
The problem of electromagnetic wave diffraction by the metal objects has been solved using integral equation technique. The diagrams of backward scattering have been plotted for four different objects. Based on the feature vector, which has been constructed by applying wavelet packet signal decomposition, a neural network has been trained. We have performed the testing of ability of the neural network to recognize the object depending on the noise level. Various methods of the feature vector forming have been considered.References
DROBAKHIN, O.O.; SHERSTYUK, G.G. Recognition multyfrequency microwave images of simple objects behind dielectric wall using neural networks and correlation technique. Proc. of XVIII Int. Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, DIPED-2013, 23–26 Sept. 2013, Lviv, Ukraine. IEEE, 2013, p.133-136, http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6653850.
HAYKIN, S. Neural Networks: A Comprehensive Foundation. Upper Saddle River, New Jersey: Prentice Hall, 1999.
ZALEVSKY, G.S.; MUZYCHENKO, A.V.; SUKHAREVSKY, O.I. Method of radar detection and identification of metal and dielectric objects with resonant sizes located in dielectric medium. Radioelectron. Commun. Syst., 2012, v.55, n.9, p.393-404, DOI: http://dx.doi.org/10.3103/S0735272712090026.
COLTON, D.L.; KRESS, R. Integral Equation Methods in Scattering Theory. New York: John Wiley & Sons, 1983.
PUN, CHI-MAN; LEE, MOON-CHUEN. Log-polar wavelet energy signatures for rotation and scale invariant texture classification. IEEE Trans. Pattern Analysis Machine Intelligence, May 2003, v.25, n.5, p.590-603, DOI: http://dx.doi.org/10.1109/TPAMI.2003.1195993.
LYASOTA, D.V.; MOROZOV, V.M. Electromagnetic diffraction on thin conductive structures. Proc. of 13th Kharkiv Young Sci. Conf. on Radiophysics, Electronics, Photonics and Biophysics, 2-6 Dec. 2013, Kharkiv, Ukraine. Kharkiv, 2013, p.34.
GIBSON, WALTON C. The Method of Moments in Electromagnetics. New York: CRC, 2008, 272 p.
VOLAKIS, JOHN L.; SERTEL, KUBILAY. Integral Equation Methods for Electromagnetics. Ohio: Scitech, 2012, 408 p.
SADIKU, MATHEW N.O. Numerical Techniques in Electromagnetics. New York: CRC, 2001, 750 p.
DU, HONG; CUI, MINGGEN. Approximate solution of the Fredholm integral equation of the first kind in a reproducing kernel Hilbert space. Appl. Math. Lett., Jun. 2008, v.21, n.6, p.617-623, DOI: http://dx.doi.org/10.1016/j.aml.2007.07.014.
MITTRA, R. (ed.), Computer Techniques for Electromagnetics. Oxford: Pergamon Press, 1973.
DAUBECHIES, I. Ten Lectures on Wavelets. Izhevsk: R&D center “Regulyarnaya i Haoticheskaya Dynamika”, 2001 [in Russian].
CHUI, C. Introduction to Wavelets. Moscow: Mir, 2001 [in Russian].