Experiment studies on equalization for coherent underwater acoustic communications

Author

Lin, He ; Chao, Sun

Author_Institution

Inst. of Acoust. Eng., Northwestern Polytech. Univ., Xian

fYear

2009

fDate

25-27 May 2009

Firstpage

3819

Lastpage

3821

Abstract

An experiment was carried out to verify the coherent underwater acoustic communication link we developed and to study the performance of adaptive equalization algorithm. The system operated successfully at 100 m distance and the symbol rate for BPSK is 2kbit/s. During channel equalization, LMS and RLS algorithm are used and data processing results show that, the convergence performance of the normally used T_s/2 spaced equalization is worse than T_s/4 spaced equalization which gets zero bit error rate.

Keywords

adaptive equalisers; least mean squares methods; underwater acoustic communication; BPSK; LMS algorithm; RLS algorithm; adaptive equalization algorithm; bit error rate; channel equalization; coherent underwater acoustic communications; data processing; Adaptive equalizers; Binary phase shift keying; Intersymbol interference; Least squares approximation; Oscilloscopes; Sampling methods; Sonar equipment; Transducers; Underwater acoustics; Underwater communication; algorithm; coherent underwater acoustic communication; experiment; fractionally spaced equalization;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138920

Filename

5138920