Acoustic-seismic mine detection based on spatial-spectral distribution of poles

Ssu-Hsin Yu; Thomas R. Witten; Raman K. Mehra

doi:10.1117/12.488030

11 September 2003 Acoustic-seismic mine detection based on spatial-spectral distribution of poles

Ssu-Hsin Yu, Thomas R. Witten, Raman K. Mehra

Proceedings Volume 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII; (2003) https://doi.org/10.1117/12.488030
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

The acoustic-seismic mine detection concept is based on the principle that an area with a buried object shows different dynamic response to acoustic excitation from that of soil. In this paper, we attempt to model and identify the dynamic behavior of a landmine under acoustic excitation for the purpose of automatic mine detection. A linear distributed model is used to model the two-dimensional vibration patterns of landmines. According to modal analysis of the model, it is shown that locations of the poles remain invariant throughout the area where a mine is buried underneath, and can be used as important features for distinguishing mines from clutter. A time-domain method that utilizes the acoustic pressure measured by a microphone as the input and the ground velocity measured by a laser Doppler vibrometer (LDV) as the output was employed to identify the model parameters including the poles. Based on the invariant property of the poles, the identified poles from neighboring measurements were combined to separate any area that show features in the spatial-spectral domain that correspond to presence of a mine.

Citation Download Citation

Ssu-Hsin Yu, Thomas R. Witten, and Raman K. Mehra "Acoustic-seismic mine detection based on spatial-spectral distribution of poles", Proc. SPIE 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII, (11 September 2003); https://doi.org/10.1117/12.488030

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