Accession Number:

ADA551136

Title:

HF Broadband Time/Frequency Spreading

Descriptive Note:

Annual rept.

Corporate Author:

PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

1998-01-01

Pagination or Media Count:

5.0

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 TF 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 TF 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 TF spread model. Essentially, the model will be a correction to ray tracing predictions made using validated boundary scattering and reflection models.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE