A blind multichannel combiner for long range underwater communications

Author

Sharif, Bayan S. ; Neasham, Jeff ; Thompson, David ; Hinton, Oliver R. ; Adams, Alan E.

Author_Institution

Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Univ., UK

Volume

1

fYear

1997

fDate

21-24 Apr 1997

Firstpage

579

Abstract

This paper presents the development and performance of blind algorithms for a spatial diversity scheme to enable reliable data telemetry over a long range underwater acoustic channel. A number of Bussgang based stochastic gradient algorithms were tested for this multipath channel with additive white and coloured shipping noise. Both simulation and real experimental tests have shown that a significant improvement is obtained by utilising the spatial diversity of the long range channel and the ability of the combiner to perform joint equalisation and carrier phase tracking

Keywords

acoustic signal processing; diversity reception; equalisers; multipath channels; stochastic processes; telemetry; time-varying channels; tracking; underwater sound; white noise; Bussgang based stochastic gradient algorithms; additive white noise; blind algorithms; blind multichannel combiner; carrier phase tracking; coloured shipping noise; equalisation; experimental tests; long range underwater acoustic channel; long range underwater communications; multipath channel; reliable data telemetry; simulation; spatial diversity; Acoustic noise; Acoustic testing; Additive noise; Additive white noise; Colored noise; Multipath channels; Performance evaluation; Stochastic resonance; Telemetry; Underwater acoustics;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on

Conference_Location

Munich

ISSN

1520-6149

Print_ISBN

0-8186-7919-0

Type

conf

DOI

10.1109/ICASSP.1997.599834

Filename

599834