Paper Title:
Blind Separability of Reverberation and Target Echo Based on Spatial Correlation
  Abstract

The detection of buried targets in shallow water is a tough task in the presence of sea-bottom reverberation. Because both target echo and reverberation are caused by the transmitted signal, they are mixed together in both time domain and frequency domain, which makes traditional signal processing methods inefficient. Blind Source Separation (BSS) is expected to isolate the reverberation from the target echo. However, the feasibility should be proved before separation. In this paper, a method based on spatial correlation is proposed to determine whether reverberation and target echo can be separated as different sources. Then, considering the nonstationarity of the reverberation, SONS (Second Order Nonstationary Source Separation) is applied to separate the original received signals. The sea experiment result shows that BSS is not only feasible but also valid to separate target echo and reverberation, and the target echo after BSS is of higher SRR which makes further process more credible.

  Info
Periodical
Chapter
Chapter 3: Sensor, Test and Signal Processing
Edited by
Zhixiang Hou
Pages
538-543
DOI
10.4028/www.scientific.net/AMM.128-129.538
Citation
X. K. Li, Q. Y. Wang, "Blind Separability of Reverberation and Target Echo Based on Spatial Correlation", Applied Mechanics and Materials, Vols. 128-129, pp. 538-543, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rui Qiang Li
Abstract:As the internet and related technology matured gradually, it indicates a new era of electronic business. This article is developed with ASP...
1279
Authors: Ai Xia Zhou, Lian Feng Gao, Jing Feng, Li Yu, Xue Yan Zhang
Chapter 3: Information Technologies, WEB and Networks Engineering, Information Security, E-Engineering, Software Application and Development
Abstract:In order to meet the special needs of military applications, network users were classified according to characteristics of users and a...
1254
Authors: Wei Zhang, Cai Xia Ma, Shuang Xia Niu
Chapter 4: Control, Automation, Communication and Information Technologies
Abstract:Focusing on the feature of embedded software in power industry and to ensure its high reliability, the authors of this article introduced a...
1674