The union of time reversal and turbo equalization on underwater acoustic communication

Author

Hao Xu ; Min Zhu ; Yanbo Wu

Author_Institution

Univ. of Chinese Acad. of Sci., Beijing, China

fYear

2013

fDate

23-27 Sept. 2013

Firstpage

1

Lastpage

5

Abstract

A receiver scheme combing time reversal processing with turbo equalization (TE) is presented for underwater acoustic communication. Time reversal processing is a means of refocusing signal that has been spread in time domain, which significantly mitigates the inter-symbol interference caused by multipath underwater environments. Turbo equalization (TE) based on channel estimation performs well against residual inter-symbol interferences after the time reversal processing. This scheme has a low complexity with multiple elements. Due to the time reversal processing, the number of equalizer taps in this scheme is 15 percents of that in direct adaptive turbo equalizer without performance degradation.

Keywords

acoustic receivers; intersymbol interference; underwater acoustic communication; TE; adaptive turbo equalizer; channel estimation; equalizer tap; intersymbol interference mitigation; multipath underwater environment; receiver scheme; time reversal processing; turbo equalization; underwater acoustic communication; Arrays; Bit error rate; Channel estimation; Decoding; Equalizers; Receivers; Underwater acoustics;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans - San Diego, 2013

Conference_Location

San Diego, CA

Type

conf

Filename

6741015