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Proceedings Article

Land mine detection measurements using acoustic-to-seismic coupling

[+] Author Affiliations
Ning Xiang, James M. Sabatier

Univ. of Mississippi (USA)

Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, 645 (August 22, 2000); doi:10.1117/12.396292
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From Conference Volume 4038

  • Detection and Remediation Technologies for Mines and Minelike Targets V
  • Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan
  • Orlando, FL | April 24, 2000

abstract

During the early 1980s, the phenomenon of acoustic-to- seismic coupling was used to detect buried objects or mines. In these early measurements, large 2 Hz geophones measured the low frequency normal component of the soil particle velocity over buried targets. Several different, naturally- occurring ground types were studied in these measurement, including grass-covered ground; bare, sandy soil surfaces; and 'dirt' roads. Since the large geophone averages the particle velocity over the area of the sensor case, acoustic-to-seismic transfer function measurements were made with new, smaller-sized geophones. Higher frequency measurements were made using accelerometers. 3D maps of the surface particle velocity were made using measured seismic/acoustic transfer function data. Recognizing the need for a non-contact sensor and the need to investigate the geophone/soil coupling effect in the acoustic-to-seismic transfer function, additional measurements were made using a laser Doppler vibrometer (LDV). This paper explains the acoustic-to-seismic coupling mine detection measurement technique using both geophones and an LDV. The early measurements of the acoustic-to-seismic coupling transfer function for mine-like targets are discussed as well as some recent measurements using a LDV.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Ning Xiang and James M. Sabatier
"Land mine detection measurements using acoustic-to-seismic coupling", Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, 645 (August 22, 2000); doi:10.1117/12.396292; http://dx.doi.org/10.1117/12.396292


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