Spatio-temporal processing of coherent acoustic communications data in shallow water

Author

Beaujean, Pierre-Philippe J. ; LeBlanc, Lester R.

Author_Institution

Dept. of Ocean Eng., Florida Atlantic Univ., Boca Raton, FL, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

1625

Abstract

Achieving reliable underwater communications in shallow water is a difficult task due to the random time varying nature of multipath propagation. This paper describes a novel coherent space-time processing method for acoustic communications in a marginally overspread channel operating between 16 kHz and 32 kHz. The FAU-MillsCross, a 64-channel high performance acoustic receiver, is our real-time development platform. Using the FAU general purpose acoustic modem as a moving source, reliable communication is achieved up to 32000 bps at 3200 meters range in shallow and very shallow water

Keywords

acoustic signal processing; multipath channels; telecommunication network reliability; underwater acoustic communication; FAU-MillsCross; coherent acoustic communications data; coherent space-time processing method; reliable underwater communications; spatio-temporal processing; Acoustic beams; Bit error rate; Chirp; Decision feedback equalizers; Decoding; Frequency; Modems; Underwater acoustics; Underwater communication; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2000 MTS/IEEE Conference and Exhibition

Conference_Location

Providence, RI

Print_ISBN

0-7803-6551-8

Type

conf

DOI

10.1109/OCEANS.2000.882173

Filename

882173