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Related Experiment Videos

Multiple focusing with adaptive time-reversal mirror.

J S Kim1, K C Shin

  • 1Division of Ocean Engineering, Korea Maritime University, Busan, 606-791, Korea. jskim@hhu.ac.kr

The Journal of the Acoustical Society of America
|March 6, 2004
PubMed
Summary

Adaptive time-reversal mirror (ATRM) technology enables simultaneous multiple focusing in ocean waveguides. This advancement allows for concurrent pulse compression at multiple underwater acoustic communication receivers.

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Area of Science:

  • Underwater acoustics
  • Signal processing
  • Wave propagation

Background:

  • Adaptive time-reversal mirror (ATRM) introduced adaptivity for null steering.
  • Previous ATRM focused on single-point focusing.

Purpose of the Study:

  • Extend ATRM for simultaneous multiple focusing in ocean waveguides.
  • Apply ATRM to long-range underwater acoustic communication.

Main Methods:

  • Imposed constraints in formulation to determine weight vectors.
  • Utilized simulation for algorithm application.
  • Extended adaptive time-reversal mirror (ATRM) principles.

Main Results:

  • Achieved simultaneous multiple focusing in an ocean waveguide.

Related Experiment Videos

  • Demonstrated simultaneous pulse compression at multiple receivers via simulation.
  • Validated ATRM's capability for complex underwater acoustic scenarios.

    • Conclusions:

    • ATRM effectively enables simultaneous multiple focusing.
    • The method is suitable for long-range underwater acoustic communication.
    • Simultaneous pulse compression at multiple locations is feasible with ATRM.