Demonstration of a High-Frequency Acoustic Barrier With a Time-Reversal Mirror

  title={Demonstration of a High-Frequency Acoustic Barrier With a Time-Reversal Mirror},
  author={H. C. Song and William A. Kuperman and William S. Hodgkiss and Tuncay Akal and Piero Guerrini},
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 (TRM) and its focus will significantly disturb the focal region and, in particular, the quiescent region. 


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