
Proceedings Paper
Detection of underground target using ultra-wideband borehole radar and SAR image formationFormat | Member Price | Non-Member Price |
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Paper Abstract
The U.S. Army Research Laboratory (ARL) has recently evaluated a commercially available borehole radar to detect
targets hidden underground. The goal of the experiment is to demonstrate the feasibility of the borehole radar coupled
with ARL's signal and image processing techniques to penetrate various geophysical media for target detection.
In this paper, we briefly describe the commercial ultra-wideband borehole radar used in the experiment. A conventional
technique to provide the attenuation and velocity maps of the underground area between two holes is called tomography.
It requires separate probes for the transmitter and the receiver for the measurement, and generally is more time
consuming and laborious. Another technique known as reflection is also widely used. In this mode, the transmitter and
receiver travel together as one single unit in one hole to measure the reflection data from surrounding clutter and
underground targets. Although this mode is much simpler to operate than tomography, the resulting image has inferior
resolution in the cross-range (depth) direction. In our experiment we employ this reflection mode, where a small
cylindrical metal target is placed in one hole while the radar (both transmitter and receiver) travels in another hole to
measure the target return. To improve the poor cross-range resolution associated with the reflection raw data image, we
apply the backprojection image formation algorithm that is commonly used in synthetic aperture radar to form high
resolution 2D images. We present the resulting images of background (without target) and with target, and show that the
underground target can be easily detected using change detection technique. This paper also compares the measured data
with the electromagnetic model prediction of the same target.
Paper Details
Date Published: 8 May 2006
PDF: 11 pages
Proc. SPIE 6210, Radar Sensor Technology X, 621004 (8 May 2006); doi: 10.1117/12.665920
Published in SPIE Proceedings Vol. 6210:
Radar Sensor Technology X
Robert N. Trebits; James L. Kurtz, Editor(s)
PDF: 11 pages
Proc. SPIE 6210, Radar Sensor Technology X, 621004 (8 May 2006); doi: 10.1117/12.665920
Show Author Affiliations
Lam Nguyen, Army Research Lab. (United States)
David Wong, Army Research Lab. (United States)
Brian Stanton, Army Research Lab. (United States)
Traian Dogaru, Army Research Lab. (United States)
Gregory Smith, Army Research Lab. (United States)
David Wong, Army Research Lab. (United States)
Brian Stanton, Army Research Lab. (United States)
Traian Dogaru, Army Research Lab. (United States)
Gregory Smith, Army Research Lab. (United States)
Marc Ressler, Army Research Lab. (United States)
Kenneth Ranney, Army Research Lab. (United States)
Anders Sullivan, Army Research Lab. (United States)
Karl Kappra, Army Research Lab. (United States)
Jeffrey Sichina, Army Research Lab. (United States)
Kenneth Ranney, Army Research Lab. (United States)
Anders Sullivan, Army Research Lab. (United States)
Karl Kappra, Army Research Lab. (United States)
Jeffrey Sichina, Army Research Lab. (United States)
Published in SPIE Proceedings Vol. 6210:
Radar Sensor Technology X
Robert N. Trebits; James L. Kurtz, Editor(s)
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