Ocean Variability Effects on Underwater Acoustic Communications
Abstract
significantly alter the operational effectiveness of underwater acoustic communications through experimental work and theoretical analysis. The long-term goal is to develop reliable, high rate transceivers customized for coherent underwater acoustic communications. The research objective is to investigate the relationship between environmental fluctuations and the performance of coherent underwater acoustic communications at high frequencies (8-50 kHz) through experimental research and data analysis. High rate communication methods are to be developed based on the understanding of acoustic propagation physics in dynamic shallow water environments. APPROACH Significant data rate increases can be achieved through the use of multiple-input/multiple-output (MIMO) systems in the underwater channel [1]. Our approach is to develop time reversal MIMO processors [2] for the high frequency underwater channel. The receiver structure is shown in Fig. 1. Time reversal followed by a single channel decision feedback equalizer (DFE), aided by frequent channel updates, is used to compensate for the time-varying inter-symbol interference (ISI).
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2010
- Accession Number
- ADA542046
Entities
People
- Aijun Song
- Mohsen Badiey
Organizations
- University of Delaware