Accession Number:

ADA612417

Title:

Reverberation Modeling Workshops

Descriptive Note:

Annual rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC ACOUSTICS SYSTEMS BRANCH

Personal Author(s):

Report Date:

2006-09-30

Pagination or Media Count:

6.0

Abstract:

Reverberation modeling is a fundamental tool supporting Navy sonar systems. Because of increased interest in littoral operations, requirements for accurate system performance predictions are placing increasing demands on predictions of reverberation. Requirements for better reverberation modeling are coming from both legacy systems employing new tactics and new distributed autonomous systems needing deployment and control strategies. These demands include better physics and statistical characterizations, required by the need to simulate bistatic and multistatic scenarios in complex range-dependent and variable environments using sophisticated wideband signals. Theoretical advances, the availability of high performance computers, and rapidly expanding communication bandwidths have made it technically feasible to implement many of the modeling changes necessary to meet the new requirements. The resulting recent progress in basic and applied research makes this a good time to review current capabilities and propose improvements. These improvements, combined with operational Navy requirements, will help define the way ahead for changes to Navy Standard Models. These models are widely used in applications ranging from training to campaign-level modeling. Currently, there are numerous research models that have had very little in the way of verification and validation - nothing comparable to what has been accomplished by way of benchmarking for forward propagation modeling. Finally, on a related topic, a recent report 1 concerning verification and validation VV of geoacoustic inversion techniques noted the lack of a proven method to generate synthetic reverberation data designed to test these inverse techniques on reverberation data.

Subject Categories:

  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE