Study of Focusing Structure in Time-Reversal-Mirror Technique

Author

Chiu, Y. S Linus ; Chen, Chi-Fang ; Lin, Ming-Hung

Author_Institution

Nat. Taiwan Univ., Taipei

fYear

2007

fDate

16-19 May 2007

Firstpage

1

Lastpage

7

Abstract

Time-reversal mirror (TRM) was recently developed for underwater communication system application. This technique has been introduced as an approach to compensate for signal distortion due to multiple path effect in ocean waveguide. TRM is used in this paper for sending a message signal in ocean waveguide, received at time-reversal-array (TRA), and retransmitted to the dynamic ocean environment with an internal solitary wave. The focal structures obtained from different simulating cases are used for bidirectional transmission expediency, and the TRA is used as the relay-line or trunked radio. Ocean waveguide characteristic effects on acoustical properties are also shown in this paper, and focal structure in different ocean environments is analyzed to provide an optimal approach to underwater communication systems and for physical insight´s interests.

Keywords

acoustic distortion; acoustic signal processing; marine systems; ocean waves; oceanographic techniques; underwater acoustic communication; acoustical properties; dynamic ocean environment; focal structures; internal solitary wave; ocean waveguide; signal distortion; signal message; time-reversal-array; time-reversal-mirror technique; trunked radio; underwater communication system application; Acoustic distortion; Acoustic propagation; Acoustic pulses; Acoustic waveguides; Acoustic waves; Oceans; Transmission line measurements; Underwater acoustics; Underwater communication; Waveguide theory;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2006 - Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-0138-3

Electronic_ISBN

978-1-4244-0138-3

Type

conf

DOI

10.1109/OCEANSAP.2006.4393922

Filename

4393922