DocumentCode :
2306287
Title :
Seismic Imaging and Detection of Underground Tunnels
Author :
Gurbuz, Ali Cafer ; McClellan, James H. ; Scott, Waymond R. ; Larson, Gregg D.
Author_Institution :
Elektrik ve Bilgisayar Muhendisligi Bolumu, Georgia Inst. of Technol., Atlanta, GA
fYear :
2006
fDate :
17-19 April 2006
Firstpage :
1
Lastpage :
4
Abstract :
To investigate the problem of detecting and imaging underground tunnels, an experimental system that utilizes seismic waves has been constructed. Seismic reflections from the tunnel are transformed into a 3D image using a synthetic aperture time- delay backprojection algorithm. Results from experimental data show that the tunnel is directly visible in the backprojected image. Nevertheless, tunnels with low signal to noise ratio (SNR) are located using 2D and 3D Radon Transforms followed by a detection algorithm. A simulation is performed on the performance of the Radon transform for detecting lines in noisy images and it is shown how lines in very low SNR images can be detected. Also it is observed that longer lines have higher probability of detection at the same noise level.
Keywords :
geophysical techniques; seismology; synthetic aperture radar; tunnels; 3D image; Radon transforms; seismic detection; seismic imaging; synthetic aperture time-delay backprojection algorithm; underground tunnels; Detection algorithms; Network address translation; Noise level; Petroleum; Reflection; Signal to noise ratio;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications Applications, 2006 IEEE 14th
Conference_Location :
Antalya
Print_ISBN :
1-4244-0238-7
Type :
conf
DOI :
10.1109/SIU.2006.1659837
Filename :
1659837
Link To Document :
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