High Frequency Acoustics and Signal Processing for Weapons

Abstract

Determine, for a broad range of frequencies (nominally 10-100 kHz), the limitations imposed by the oceanic environment on the exploitation of coherent signal structure. This understanding is required in order to optimize sonar signal processing structures (e.g. channel conditioning, especially in shallow water), for wideband signal and processor design, and for acoustic propagation modeling. Develop the capability to predict the dynamic and spatial characteristics of wakes and the acoustic field behavior in and around the wakes of Navy warships. Seek a predictive capability for how acoustic propagation varies with frequency, source receiver geometry relative to the wake, and the spatial statistics of attenuation and scattering strength in the wake.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2001
Accession Number
ADA397044

Entities

People

  • David L. Bradley

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Propagation
  • Acoustics
  • Bandwidth
  • Computational Fluid Dynamics
  • Frequency
  • Frequency Bands
  • Geometry
  • Losses
  • Measurement
  • Oceans
  • Radio Frequency
  • Scattering
  • Signal Processing
  • Three Dimensional
  • Two Dimensional
  • Underwater Acoustics

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Radio communications and signal processing.
  • Wave Propagation and Nonlinear Chaotic Dynamics.