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Pulse propagation in randomly fluctuating media.

D K Dacol1

  • 1Naval Research Laboratory, Washington, DC 20375-5350, USA. dacol@nrl.navy.mil

The Journal of the Acoustical Society of America
|June 27, 2001
PubMed
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This study simulates pulse propagation in random media using a progressive wave equation. The method provides accurate time-dependent statistics and simulations for random wave phenomena.

Area of Science:

  • Physics
  • Wave Propagation
  • Computational Physics

Background:

  • Understanding wave propagation in random media is crucial for various scientific fields.
  • Previous methods often struggle with computational complexity and accuracy.

Purpose of the Study:

  • To develop an efficient method for simulating pulse propagation in weakly inhomogeneous random media.
  • To obtain time-dependent statistical properties of propagating pulses.

Main Methods:

  • Utilizing a time-domain progressive wave equation.
  • Employing an eikonal-like approximated solution derived from path integral representation.
  • Generating simulations of time series and their statistical properties.

Main Results:

Related Experiment Videos

  • Successfully simulated pulse propagation in a random medium.
  • Obtained time-dependent statistical properties of the pulses.
  • Demonstrated a computationally efficient approach.

Conclusions:

  • The progressive wave equation with an eikonal-like approximation offers a viable method for studying pulse propagation in random media.
  • This approach simplifies the simulation of complex wave phenomena and their statistics.