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Proceedings Paper

Increasing speckle noise immunity in LDV-based acoustic mine detection
Author(s): Paul M. Goggans; C. Ray Smith; Ning Xiang
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Paper Abstract

Probability as logic is used to estimate the surface velocity of a patch of soil driven by an incident acoustic wave. The data used by the estimation procedure is obtained from a laser Doppler vibrometer (LDV). The output of the LDV is an intermediate-frequency carrier that is frequency- modulated by the soil surface velocity. Additionally, the LDV output is amplitude modulated by an undesirable variation in the returned laser signal due to dynamic optical speckle. The effect of the amplitude modulated by an undesirable variation in the returned laser signal due to dynamical optical speckle. The effect of the amplitude modulation on the estimate of the soil surface velocity is illustrated with results obtained using the Markov chain Monte Carlo method.

Paper Details

Date Published: 22 August 2000
PDF: 6 pages
Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, (22 August 2000); doi: 10.1117/12.396300
Show Author Affiliations
Paul M. Goggans, Univ. of Mississippi (United States)
C. Ray Smith, Univ. of Mississippi (United States)
Ning Xiang, Univ. of Mississippi (United States)


Published in SPIE Proceedings Vol. 4038:
Detection and Remediation Technologies for Mines and Minelike Targets V
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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