HF Broadband Time/Frequency Spreading

Abstract

The long-term goal is to provide underwater weapon system designers with a means of testing broadband signals and signal processing algorithms in shallow ocean scenarios where time and frequency (T/F) spread are often significant. This capability is required for sonar signal processing optimization and wideband signal and processor design. The scientific objectives are to measure T/F spread directly along with relevant environmental parameters (primarily wind speed, sound speed profile, and bottom properties) at several shallow ocean regions, and from those data develop an empirical, environment-driven T/F spread model. Essentially, the model will be a correction to ray tracing predictions made using validated boundary scattering and reflection models.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA551136

Entities

People

  • Richard L. Culver

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Propagation
  • Acoustic Signals
  • Bandwidth
  • Broadband
  • Frequency
  • Frequency Bands
  • Frequency Shift
  • Matched Filters
  • Measurement
  • North Sea
  • Oceans
  • Ray Tracing
  • Repetition Rate
  • Shallow Water
  • Signal Processing
  • Sonar Signals

Readers

  • Distributed Systems and Data Platform Development
  • Radar Systems Engineering.
  • Wave Propagation and Nonlinear Chaotic Dynamics.