Sound Refocusing Simulation using Time Reversal Mirror in a Shallow Water Environment

Title
Sound Refocusing Simulation using Time Reversal Mirror in a Shallow Water Environment
Author(s)
최복경; 김병남; 김성현; 김봉채
KIOST Author(s)
Choi, Bok Kyoung(최복경)Kim, Byoung Nam(김병남)Kim, Seong Hyeon(김성현)
Publication Year
2012-12-05
Abstract
TRM(Time Reversal Mirror) principles are described in review papers of M. Fink, the inventorof TRM, and his associates. In Recent Choi carried out the study of the waveform and spatialfocusing experiment.In this paper it is considered the approach to predict TRM parameters based on the calculations of impulse response from underwater acoustic ray model in shallow water. The collection of impulse responses allows calculation of spatial structure of the TRM for variety of parameters. For simulation of acoustic source localization using time reversal mirror in the shallow water, we have to know the impulse response of the environment. Throughout this process we can reproduce an original signal at focal point. To apply this TRM simulation to shallow water environment, after extracting the impulse response about simple condition as shallow water, we analyze the acoustic focusing by TRM inversion.the approach to predict TRM parameters based on the calculations of impulse response from underwater acoustic ray model in shallow water. The collection of impulse responses allows calculation of spatial structure of the TRM for variety of parameters. For simulation of acoustic source localization using time reversal mirror in the shallow water, we have to know the impulse response of the environment. Throughout this process we can reproduce an original signal at focal point. To apply this TRM simulation to shallow water environment, after extracting the impulse response about simple condition as shallow water, we analyze the acoustic focusing by TRM inversion.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27241
Bibliographic Citation
The 33rd Symposium on Ultrasonic Electronics, pp.403 - 404, 2012
Publisher
The Japan Society of Applied Physics
Type
Conference
Language
English
Publisher
The Japan Society of Applied Physics
Related Researcher
Research Interests

Marine Security,Physical Oceanography,Underwater Acoustics,해양방위,해양물리,수중음향

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse