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      Wall Clutter Mitigation in Through-the-Wall Imaging Radar with Sparse Array Antenna Based on Independent Component Analysis

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          Abstract

          For Through-the-Wall Imaging Radar (TWIR), wall clutter is critical for detecting target signals behind a wall. For a system with a sparse antenna array, the lack of observation channels makes it more difficult to separate the target signals and wall clutter. On the basis of fluctuation of the range profile in real transmit/receive channels, this paper proposes to use Independent Component Analysis (ICA) on multiple down-range observations of each transmit/receive channel to remove the wall clutter. The simulation and experimental results show that the proposed method effectively separate target and clutter components, even though the signal-to-clutter ratio is only -30 dB.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 October 2014
          : 3
          : 5
          : 524-532
          Affiliations
          [1 ] College of Electronic Science and Engineering, National University of Defense Technology
          Article
          0a6b2940a31944c294fc3cddb9c49f3a
          10.3724/SP.J.1300.2014.14066

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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