Accession Number:

ADA533126

Title:

Determining the Characteristics and Mechanisms for Biological Clutter and Environmental Reverberation and Their Impact on Long Range Sonar Performance in Range-Dependent Fluctuating Ocean Waveguides

Descriptive Note:

Annual rept.

Corporate Author:

NORTHEASTERN UNIV BOSTON MA

Personal Author(s):

Report Date:

2008-09-30

Pagination or Media Count:

7.0

Abstract:

Determine the temporal and spatial characteristics, and physical mechanisms for biological clutter and environmental reverberation in long-range wide area active sonar systems. This understanding is used to develop operational and signal processing techniques to distinguish biological clutter from scattered returns due to man-man targets, and to determine the limits placed by environmental reverberation on target detection. In the second area, the statistical properties of broadband acoustic signals transmitted and scattered in range-dependent ocean waveguides is examined. This knowledge is then used to determine the extent to which environmental variabilities limit our ability to perform target localization and parameter estimation through beamforming and match-filtering broadband data from active sonars in fluctuating and dispersive ocean waveguides.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE