Accession Number:

ADA621218

Title:

Coupled Research in Ocean Acoustics and Signal Processing for the Next Generation of Underwater Acoustic Communication Systems

Descriptive Note:

Progress rept. 20 Jan-19 Apr 2015

Corporate Author:

JP ANALYTICS LLC FALMOUTH MA

Personal Author(s):

• Preisig, James

Report Date:

2015-08-09

Pagination or Media Count:

6.0

Abstract:

Technical work this period has spanned five areas. The first was continuation of work on developing a methodology within the framework of asymptotic random matrix theory RMT to explicitly model the time variability of acoustic channels and using this to predict underwater acoustic communications systems performance. Prior methods have accommodated time variability by assuming that the channel is time invariant over an appropriately short interval of time. By explicitly modeling the time variability within the RMT framework it is hoped that the resulting analysis will more accurately predict the trade-offs associated with the rate of channel fluctuations, the number and configuration of hydrophone array elements, the size of filters in subsequent equalizers, and the structure of the equalizer adaptation algorithms.

Descriptors:

• *ACOUSTIC COMMUNICATIONS
• *SIGNAL PROCESSING
• *UNDERWATER ACOUSTICS
• *UNDERWATER COMMUNICATIONS
• ALGORITHMS
• CORRELATION
• PREDICTIONS
• TIME
• VARIATIONS

Subject Categories:

• Physical and Dynamic Oceanography
• Miscellaneous Detection and Detectors
• Acoustics
• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE