Time Domain Analysis of Ultra-Wide Band Signals from Buried Objects Under Flat and Slightly Rough Surfaces
Keywords:
Buried object, electromagnetic scattering, multipath analysisAbstract
The analysis of transient scattering for TMz (horizontally) polarization from a cylindrical perfectly conducting (PEC) object buried in a lossy medium is considered. Flat and slightly surface cases are considered for the dielectric halfspace. Our previous work using a decomposition method solution in frequency domain of TMz polarization is utilized to solve this scattering problem. Then, an inverse Fourier transform is used to get the time domain signals. Timing analysis is done by calculating the travelling time of reflected signals in the possible paths. Then, multiple reflections are identified using these travelling times. Finally, the results from the flat and slightly rough surface profiles are used to compare the effects of multipath propagation.
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References
J. D. Kanellopoulos and N. E. Buris, “Scattering from conducting cylinders embedded in a lossy medium,” International Journal of Electronics, vol. 57, no. 3, pp. 391-401, 1984.
T. J. Cui, W. C. Chew, and W. Hong, “New approximate formulations for EM scattering by dielectric objects,”IEEE Transactions on Antennas and Propagation, vol. 52, no. 3, pp. 684-692, 2004.
D. E. Lawrence and K. Sarabandi, “Electromagnetic scattering from a dielectric cylinder buried beneath a slightly rough surface,” IEEE Transactions on Antennas and Propagation, vol. 50, no. 10, pp. 1368-1376, 2002.
Y. Altuncu, A. Yapar, and I. Akduman, “On the scattering of electromagnetic waves by bodies buried in a half-space with locally rough interface,” IEEE Trans. Geosci. Remote Sens., vol. 44, no. 6, pp. 1435-1443, 2006.
Q. A. Naqvi, A. A. Rizvi, and Z. Yaqoob, “Scattering of electromagnetic waves from a deeply buried circular cylinder,” Progress in Electromagnetics Research, vol. 27, pp. 37-59, 2000.
Y. Altuncu, I. Akduman, and A. Yapar, “Detecting and locating dielectric objects buried under a rough interface,” IEEE Geoscience and Remote Sensing Letters, vol. 4, no. 2, pp. 251-255, 2007.
C. C. Chiu and Y. W. Kiang, “Electromagnetic inverse scattering of a conducting cylinder buried in a lossy half-space,” IEEE Transactions on Antennas and Propagation, vol. 40, pp. 1562-1565, 1992.
T. Dogaru and L.Carin, “Time-domain sensing of targets buried under a rough air–ground interface,” IEEE Transactions on Antennas and Propagation, vol. 46, no. 3, pp. 360-372, 1998.
C. Huang, C. Chen, C. Chiu, and C. Li, “Reconstruction of the buried homogenous dielectric cylinder by FDTD and asynchronous particle swarmoptimization,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 25, no. 8, pp. 672-681, August 2010.
F. Deek and M. El-Shenawee, “Microwave detection of cracks in buried pipes using the complex frequency technique,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 25, no. 10, pp. 894-902, Oct. 2010.
K. P. Prokopidis and T. D. Tsiboukis, “Modeling of ground-penetrating radar for detecting buried objects in dispersive soils,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 22, no. 2, pp. 287-294, July 2007.
C. H. Huang, C. C. Chiu, C. J. Lin, and Y. F. Chen, “Inverse scattering of inhomogeneous dielectric cylinders buried in a slab medium by TE wave illumination,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 22, no. 2, pp. 295-301, July 2007.
R. Araneo and S. Barmada, “Advanced image processing techniques for the discrimination of buried objects,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 26, no. 5, pp. 437-446, May 2011.
P. Falorni, L. Capineri, L. Masotti, and C. G. Windsor, “Analysis of time domain ultra-wide band radar signals reflected by buried objects,” Progress In Electromagnetics Research (PIERS), vol. 3, no. 5, pp. 662-665, 2007.
C. G. Windsor, L. Capineri, and P. Falorni, “The estimation of buried pipe diameters by generalized Hough transform of radar data,” Progress In Electromagnetics Research Symposium, Hangzhou, China, pp. 345-349, August 2005.
S. Vitebskiy, K. Sturgess, and L. Carin, “Shortpulse plane-wave scattering from buried perfectly conducting bodies of revolution,” IEEE Transactions on Antennas and Propagation, vol. 44, no. 2, pp. 143-151, February 1996.
S. Vitebskiy and L. Carin, “Moment-method modeling of short-pulse scattering from and the resonances of a wire buried inside a lossy, dispersive half-space,” IEEE Transactions on Antennas and Propagation, vol. 43, no. 1, pp. 1303-1312, November 1995.
J. A. Fuller and J. R. Wait, “Electromagnetic pulse transmission in homogeneous dispersive rock,” IEEE Transactions on Antennas and Propagation, vol. 20, no. 4, pp. 530-533, July 1972.
D. L. Moffai and R. J. Puskar, “A subsurface electromagnetic pulse radar,” Geophys., vol. 41, pp. 506-518, June 1976.
L. Peters Jr. and J. D. Young, Applications of Subsurface Transient Radars, in Eme Domain Measurements in Electromagnetics, New York Van Nostrand Reinhold, E. K. Miller, Ed., 1986.
G. S. Smith and W. R. Scotr Jr., “A scale model for studying ground penetrating radars,” IEEE Trans. Geosci. Remote Sensing, vol. 27, no. 4, pp. 358- 363, 1989.
C. Liu and C. Shen, “Numerical simulation of subsurface radar for detecting buried pipes,” IEEE Trans. Geosci. Remote Sensing, vol. 29, no. 5, pp. 795-798, Sept. 1991.
M. Jaureguy and P. Borderies, “Modelling and processing of ultra wide band scattering of buried targets,” EUREL International Conference on The Detection of Abandoned Land Mines: A Humanitarian Imperative Seeking a Technical Solution, no. 431, p.119-123, 1996.
F. Sabath, Ultra-Wideband Short-Pulse Electromagnetics 7, Springer 2007.
kal and A. Kizilay, “A decomposition method for the electromagnetic scattering from a conductive object buried in a lossy medium,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 26, no. 4, pp. 340-347, 2011.
S. Makal and A. Kizilay, “Computation of the scattered fields from a dielectric object buried in a medium with a periodic surface by a decomposition method,” IET Microwaves, Antennas and Propagation, vol. 5, no. 14, pp. 1703-1709, 2011.
