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Hard Wall Imaging of Objects Hidden by Non-Penetrating Obstacles Using Modified Time Reversal Technique.

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Titel: Hard Wall Imaging of Objects Hidden by Non-Penetrating Obstacles Using Modified Time Reversal Technique.
Autoren: Ishimaru, Akira, Zhang, Ce, Kuga, Yasuo
Quelle: IEEE Transactions on Antennas & Propagation; Jul2014, Vol. 62 Issue 7, p3645-3651, 7p
Schlagwörter: MICROWAVE imaging, SIGNAL processing, TIME reversal, OPTICAL diffraction, IMAGING systems
Abstract: One of the important current problems is imaging and detection of objects hidden by obscuring obstacles. There have been extensive works reported on “Through-Wall Imaging” in recent years. This paper extends the previous works to the case where the wall is non-penetrating and the diffraction around the edge becomes important. This hard-wall imaging is related to the historical problem of “Poisson Spot” and “Anti-Podal point.” This paper makes use of the modified time-reversal technique and GTD, and shows the formulations of the multistatic data matrix, eigenvectors and steering vectors to form the imaging function. Signal processing includes the multiplicative modified time reversal technique to eliminate the unwanted extraneous images. Numerical examples include comparisons between the modified and the conventional time-reversal imaging to show the effectiveness of the hard-wall imaging method. [ABSTRACT FROM PUBLISHER]
Copyright of IEEE Transactions on Antennas & Propagation is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Hard Wall Imaging of Objects Hidden by Non-Penetrating Obstacles Using Modified Time Reversal Technique.
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  Data: <searchLink fieldCode="AR" term="%22Ishimaru%2C+Akira%22">Ishimaru, Akira</searchLink><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ce%22">Zhang, Ce</searchLink><br /><searchLink fieldCode="AR" term="%22Kuga%2C+Yasuo%22">Kuga, Yasuo</searchLink>
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  Data: IEEE Transactions on Antennas & Propagation; Jul2014, Vol. 62 Issue 7, p3645-3651, 7p
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  Data: <searchLink fieldCode="DE" term="%22MICROWAVE+imaging%22">MICROWAVE imaging</searchLink><br /><searchLink fieldCode="DE" term="%22SIGNAL+processing%22">SIGNAL processing</searchLink><br /><searchLink fieldCode="DE" term="%22TIME+reversal%22">TIME reversal</searchLink><br /><searchLink fieldCode="DE" term="%22OPTICAL+diffraction%22">OPTICAL diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22IMAGING+systems%22">IMAGING systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: One of the important current problems is imaging and detection of objects hidden by obscuring obstacles. There have been extensive works reported on “Through-Wall Imaging” in recent years. This paper extends the previous works to the case where the wall is non-penetrating and the diffraction around the edge becomes important. This hard-wall imaging is related to the historical problem of “Poisson Spot” and “Anti-Podal point.” This paper makes use of the modified time-reversal technique and GTD, and shows the formulations of the multistatic data matrix, eigenvectors and steering vectors to form the imaging function. Signal processing includes the multiplicative modified time reversal technique to eliminate the unwanted extraneous images. Numerical examples include comparisons between the modified and the conventional time-reversal imaging to show the effectiveness of the hard-wall imaging method. [ABSTRACT FROM PUBLISHER]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Antennas & Propagation is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1109/TAP.2014.2317479
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        Text: English
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        PageCount: 7
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    Subjects:
      – SubjectFull: MICROWAVE imaging
        Type: general
      – SubjectFull: SIGNAL processing
        Type: general
      – SubjectFull: TIME reversal
        Type: general
      – SubjectFull: OPTICAL diffraction
        Type: general
      – SubjectFull: IMAGING systems
        Type: general
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      – TitleFull: Hard Wall Imaging of Objects Hidden by Non-Penetrating Obstacles Using Modified Time Reversal Technique.
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            NameFull: Ishimaru, Akira
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            NameFull: Zhang, Ce
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              Text: Jul2014
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