In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 119, No. 5_Supplement ( 2006-05-01), p. 3386-3386
Kurzfassung:
Modes in landmines have become a topic of recent interest in acoustic landmine detection. Of equal importance is the effect of burial on the experimentally observed resonances of landmines. Complicated dependence of resonance frequency on depth has been observed in field measurements and has been, thus, the topic of experimental and theoretical study. As such, further burial simulation experiments have been performed on a landmine and an acoustic landmine simulant. Burial simulation in water shows a saturation of downward modal frequency shift that rapidly deviates from the shift predicted by simple mass loading theory. This saturation agrees with that predicted by Velea et al. [J. Acoust. Soc. Am. 115, 1993–2002 (2004)]. Burial simulations performed in sand reveal resonance frequency depth dependence that saturates following a rapid downward frequency shift and a small resonance frequency increase. [This work was sponsored by US Army Research, Development, and Engineering Command, Night Vision and Electronic Sensors Directorate under Contract DAAB15-02-C-0024.]
Materialart:
Online-Ressource
ISSN:
0001-4966
,
1520-8524
Sprache:
Englisch
Verlag:
Acoustical Society of America (ASA)
Publikationsdatum:
2006
ZDB Id:
1461063-2
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