11 September 2003 Novel architecture for a hybrid acoustic-radar buried-object detection system
Author Affiliations +
Abstract
We have created a new architecture for the detection and location of specific buried targets. The system uses a combination of acoustic vibrations and electromagnetic waves to achieve highly specific target recognition, and a multistatic configuration to determine target location. The mechanical vibration resonance properties of the constituent elements of the targets constitute a signature which can be identified in clutter. In order to better detect these vibrations, continuous-wave radar signals are used rather than acoustic reflections, as in sonar-based systems. The energy stored in resonant vibrating elements is not directly detected, but rather modulates the radar signal. The received signals are sampled at high resolution to facilitate target signature recognition by cross-correlation and phase measurement. Location is accomplished by travel time determination for each receiver using absolute phase measurements at multiple frequencies. The phase measurements provide multiple sets of confocal elliptical lines of position, whose intersection identifies the target location. The region in which a mine can be precisely located is a subset of the region in which its presence can be detected.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael C. Britton, Michael C. Britton, Jim S. Wight, Jim S. Wight, Robert G. Harrison, Robert G. Harrison, } "Novel architecture for a hybrid acoustic-radar buried-object detection system", Proc. SPIE 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII, (11 September 2003); doi: 10.1117/12.486804; https://doi.org/10.1117/12.486804
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Multifrequency VSAR imaging of moving targets
Proceedings of SPIE (September 28 1999)
Integrated bias removal in passive radar systems
Proceedings of SPIE (April 15 2008)
Resampling methods for stretch processing in PCL radars
Proceedings of SPIE (December 27 2007)
Common aperture multiband radar (CAMBR)
Proceedings of SPIE (November 04 1996)

Back to Top