Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide

Xiang PAN; Jian-long LI; Wen XU; Xian-yi GONG

doi:10.1631/jzus.C0910212

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Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide

Signal Processing | Updated：2022-08-31

- Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide
- Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide
- Frontiers of Information Technology & Electronic Engineering Vol. 11, Issue 5, Pages: 401-406(2010)
- Affiliations：
  
  1.Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China
  2.Zhejiang Provincial Key Laboratory of Information Network Technology, Hangzhou 310027, China
- Author bio：
  
  E-mail:panxiang@zju.edu.cn
  jlli@zju.edu.cn
  wxu@zju.edu.cn
  gongxy@zju.edu.cn
- Funds：
- DOI：10.1631/jzus.C0910212
  CLC：
- Received：16 April 2009，
  
  Revised：2010-03-29，
  
  Accepted：16 September 2009，
  
  Published：2010-05
- Accepted：
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Xiang PAN, Jian-long LI, Wen XU, et al. Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide[J]. Frontiers of Information Technology & Electronic Engineering, 2010, 11(5): 401-406.
DOI：

Xiang PAN, Jian-long LI, Wen XU, et al. Robust time reversal processing for active detection of a small bottom target in a shallow water waveguide[J]. Frontiers of Information Technology & Electronic Engineering, 2010, 11(5): 401-406. DOI： 10.1631/jzus.C0910212.

摘要

Abstract

With the spatial-temporal focusing of acoustic energy

time reversal processing (TRP) shows the potential application for active target detection in shallow water. To turn the ‘potential’ into a reality

the TRP based on a model source (MS) instead of a physical probe source (PS) is investigated. For uncertain ocean environments

the robustness of TRP is discussed for the narrowband and broadband signal respectively. The channel transfer function matrix is first constructed in the acoustic perturbation space. Then a steering vector for time reversal transmission is obtained by singular value decomposition (SVD) of the matrix. For verification of the robust TRP

the tank experiments of time reversal transmission focusing and its application for active target detection are undertaken. The experimental results have shown that the robust TRP can effectively detect and locate a small bottom target.

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