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Matched shadow processing.

A L Virovlyansky1

  • 1Institute of Applied Physics, Russian Academy of Science, 46 Ul'yanov Street, 603950 Nizhny Novgorod, Russia virovlyansky@mail.ru.

The Journal of the Acoustical Society of America
|August 3, 2017
PubMed
Summary

This study introduces a novel matched field processing method using wave field intensity distributions. This approach offers improved robustness against environmental model inaccuracies in underwater acoustics.

Area of Science:

  • Underwater acoustics
  • Signal processing
  • Quantum mechanics applications

Background:

  • Traditional matched field processing relies on complex amplitude comparisons.
  • Environmental model inaccuracies limit the performance of conventional methods.

Purpose of the Study:

  • To develop an alternative matched field processing approach.
  • To reduce sensitivity to environmental model errors.

Main Methods:

  • Comparing wave field intensity distributions in the depth-arrival angle plane.
  • Utilizing the formalism of coherent states from quantum mechanics.

Main Results:

  • The proposed method demonstrates lower sensitivity to environmental model inaccuracies.

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  • Intensity-based comparison offers a more robust alternative to amplitude-based methods.

    • Conclusions:

    • The novel intensity-based matched field processing is a promising alternative.
    • This method enhances the reliability of acoustic signal processing in uncertain environments.