Through Wall Gap Detection Using Monostatic Radar
Keywords:
GPR, monostatic radar, TDR, tunnels detection, time domain measurements, UWB antenna, UWB pulseAbstract
In this paper, a new experimental system for through wall gap detection and concealed vacancies behind wall is introduced. The ultra wide band (UWB) system is based on the principles of time domain reflectometry (TDR) and ground-penetrating radar (GPR) for through wall imaging to detect hidden gaps and/or hiding persons behind walls. The system uses a very short pulse generated by the vector network analyzer (VNA) to illuminate the wall under investigation through an UWB antenna probe. The detection process is achieved using time domain measurements of the probe reflection coefficient S11. Some numerical analyses have been carried out for verifying the principle of operation. The experimental results show a great ability not only for the gap detection between walls but also for estimation of the gap width with a very good accuracy (6.25 % in the worst case) for different types of walls.
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A. B. Suksmono, E. Bharata, A. A. Lestari, A. G. Yarovoy, and L. P. Ligthart, “Compressive stepped-frequency continuous-wave groundpenetrating radar,” IEEE Geoscience and Remote Sensing Letters, vol. 7, no. 4, pp. 665-669, Oct. 2010.
C. -L. Huang, S. –P. Zhu, and M. Lu, “Miniature multimode deep ground penetrating radar,” 13th
Y. Sun and J. Li, “Time-frequency analysis for plastic landmine detection via forward-looking ground penetrating radar,” IEE Proceedings on Radar, Sonar, and Navigation, vol. 150, no. 4, pp. 253-261, Aug. 2003. International Conference on Ground Penetrating Radar (GPR), pp. 1-5, 21-25 June 2010.
Y. Zhou, “Microwave imaging based on wideband range profiles,” Progress In Electromagnetics Research Letters, vol. 19, pp. 57-65, 2010.
R. C. Conceição, M. O'Halloran, M. Glavin, and E. Jones, “Comparison of planar and circular antenna configurations for breast cancer detection using microwave imaging,” Progress In Electromagnetics Research, vol. 99, pp. 1-20, 2009.
S. A. AlShehri and S. Khatun, “UWB imaging for breast cancer detection using neural network,” Progress In Electromagnetics Research C, vol. 7, pp. 79-93, 2009.
F. Aryanfar and K. Sarabandi, “Through wall imaging at microwave frequencies using spacetime focusing,” IEEE Antennas and Propagation Society International Symposium, vol. 3, pp. 3063- 3066, 20-25 June 2004.
K. M. Yemelyanov, N. Engheta, A. Hoorfar, and J. A. McVay, “Adaptive polarization contrast techniques for through-wall microwave imaging applications,” IEEE Transactions on Geoscience and Remote Sensing, vol. 47, no. 5, pp. 1362-1374, May 2009.
V. M. Lubecke, O. Boric-Lubecke, A. HostMadson, and A. E. Fathy, “Through-the-wall radar life detection and monitoring,” IEEE Microwave Symposium, pp. 769-772, June 2007.
C. Thajudeen, W. Zhang, and A. Hoorfar, “Efficient forward modeling of large scale buildings and through-the-wall radar imaging scenarios,” 28th
A. Buonanno, M. D’Urso, G. Prisco, M. Ascione, and A. Farina, “A model-based signal processor to see inside buildings,” 26 Annual Review of Progress in Applied Computational Electromagnetics (ACES), Columbus, Ohio, pp. 122-126, April 2012. th
A. Buonanno, M. D’Urso, G. Prisco, M. Ascione, and A. Farina, “A model-based signal processor to see inside buildings,” 26 Annual Review of Progress in Applied Computational Electromagnetics (ACES), Tampere, Finland, pp. 846-851, April 2010. th
K. W. Chang, M. E. Bialkowski, and S. Crozier, “Microwave imaging using a planar scanning system with step-frequency synthesized pulse,” Asia-Pacific Conference Proceedings on Microwave, APMC, vol. 1, pp. 4, 4-7 Dec. 2005. Annual Review of Progress in Applied Computational Electromagnetics (ACES), Tampere, Finland, pp. 846-851, April 2010.
CST Microwave Studio, ver. 2012, Framingham, MA, 2012.
A. Elboushi, O. M. H. Ahmed, A. R. Sebak, and T. A. Denidni, “Study of ellpitical slot UWB antennas with a 5.0-6.0 GHz band-notch capability,” Progress In Electromagnetics Research C, vol. 16, pp. 207-222, 2010.
