Adaptive multichannel equalizer for underwater communications

Author

Capellano, Vittorio ; Loubet, Gérard ; Jourdain, Geneviève

Author_Institution

CEPHAG-INPGrenoble, Domaine Univ., Saint Martin d´´Heres, France

Volume

2

fYear

1996

fDate

23-26 Sep 1996

Firstpage

994

Abstract

Underwater acoustic communications are made difficult by the characteristics of the transmission channel. They experience Doppler effects, intersymbol interference and non-stationarities. In this paper, we address an original adaptive receiver which effectively compensates for the signal distortion. We present an adaptive multichannel equalizer made of a bank of transversal filters. A fast-optimized LMS algorithm is introduced and its performances are compared to that of other algorithms. Results are also described on experimental data

Keywords

Doppler effect; acoustic receivers; adaptive equalisers; digital filters; interference suppression; intersymbol interference; least mean squares methods; receivers; telecommunication channels; underwater sound; Doppler effects; adaptive multichannel equalizer; adaptive receiver; fast-optimized LMS algorithm; intersymbol interference; nonstationarity; performance; signal distortion; transmission channel; transversal filters; underwater acoustic communications; Acoustic distortion; Data communication; Doppler effect; Equalizers; Fading; Intersymbol interference; Radio transmitters; Sensor arrays; Underwater acoustics; Underwater communication;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '96. MTS/IEEE. Prospects for the 21st Century. Conference Proceedings

Conference_Location

Fort Lauderdale, FL

Print_ISBN

0-7803-3519-8

Type

conf

DOI

10.1109/OCEANS.1996.568370

Filename

568370