Demonstration of a high-frequency acoustic barrier with a time-reversal mirror

An acoustic barrier has been demonstrated using a time-reversal mirror. The experiments, at 3500 Hz, utilized a source-receiver array, a probe source collocated with a receive array, and an echo repeater to emulate a disturbance. The successful demonstration is based on the idea that a disturbance s...

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Veröffentlicht in:	IEEE journal of oceanic engineering 2003-04, Vol.28 (2), p.246-249
Hauptverfasser:	Song, H., Kuperman, W.A., Hodgkiss, W.S., Akal, T., Guerrini, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic beams Acoustic scattering Acoustic signal detection Acoustic testing Acoustics Arrays Barriers Brackish Disturbances Earth sciences Earth, ocean, space Exact sciences and technology Freshwater Marine Marine geology Mirrors Oceans Probes Repeaters Robustness Transmission line measurements
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Zusammenfassung:	An acoustic barrier has been demonstrated using a time-reversal mirror. The experiments, at 3500 Hz, utilized a source-receiver array, a probe source collocated with a receive array, and an echo repeater to emulate a disturbance. The successful demonstration is based on the idea that a disturbance such as an object between a time-reversal mirror and its focus will significantly disturb the focal region and, in particular, the quiescent region.
ISSN:	0364-9059 1558-1691
DOI:	10.1109/JOE.2003.811900