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Time Reversal Processing Effect on Foci Structure in a Dynamic Ocean Waveguide

Published online by Cambridge University Press:  05 May 2011

Y. S. Chiu  and
C.-F. Chen
Y. S. Chiu*
Affiliation:
Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
C.-F. Chen*
Affiliation:
Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Ph.D. candidate
**Professor
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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

Time-reversal mirror (TRM)Time-reversal process (TRP)Underwater communication.
Type
Articles
Information
Journal of Mechanics , Volume 23 , Issue 3 , September 2007 , pp. 203 - 210
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2007

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