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Iterative angle-and-time-domain gating technique for time-reversal MUSIC imaging

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Název: Iterative angle-and-time-domain gating technique for time-reversal MUSIC imaging
Autoři: Choi, Heedong, Ogawa, Yasutaka, Nishimura, Toshihiko, Ohgane, Takeo
Informace o vydavateli: Elsevier
Témata: Time reversal methodology, Multiple signal classification (MUSIC), Target detection, Radar imaging, Gating technique, Multistatic data matrix, info, musiq
Time: 547
Popis: This study develops the preprocessing theory for time-reversal multiple signal classification (TR-MUSIC) imaging from the one-dimensional (time-domain) gating proposed in earlier papers to a two-dimensional one. Although the one-dimensional gating technique for TR-MUSIC mitigates the effect of noise as well as reduces the required number of antenna elements, the resulting image is subject to focusing errors when there are many targets in the gated region. In this paper, we propose a two-dimensional (angle-and-time-domain) gating technique based on the fast Fourier transform (FFT) and spatial FFT processing. By using these transforms and gating iteratively, we can reduce the number of targets to be detected at one time. The TR-MUSIC technique for the gated data provides more reliable images and precisely estimated coordinates compared with the previous work. (C) 2014 Elsevier B.V. All rights reserved.
Druh dokumentu: article in journal/newspaper
Jazyk: English
Relation: http://hdl.handle.net/2115/58558
Dostupnost: http://hdl.handle.net/2115/58558
Rights: undefined
Přístupové číslo: edsbas.D0CD4329
Databáze: BASE
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Iterative angle-and-time-domain gating technique for time-reversal MUSIC imaging
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Choi%2C+Heedong%22">Choi, Heedong</searchLink><br /><searchLink fieldCode="AR" term="%22Ogawa%2C+Yasutaka%22">Ogawa, Yasutaka</searchLink><br /><searchLink fieldCode="AR" term="%22Nishimura%2C+Toshihiko%22">Nishimura, Toshihiko</searchLink><br /><searchLink fieldCode="AR" term="%22Ohgane%2C+Takeo%22">Ohgane, Takeo</searchLink>
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  Label: Publisher Information
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  Data: Elsevier
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Time+reversal+methodology%22">Time reversal methodology</searchLink><br /><searchLink fieldCode="DE" term="%22Multiple+signal+classification+%28MUSIC%29%22">Multiple signal classification (MUSIC)</searchLink><br /><searchLink fieldCode="DE" term="%22Target+detection%22">Target detection</searchLink><br /><searchLink fieldCode="DE" term="%22Radar+imaging%22">Radar imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Gating+technique%22">Gating technique</searchLink><br /><searchLink fieldCode="DE" term="%22Multistatic+data+matrix%22">Multistatic data matrix</searchLink><br /><searchLink fieldCode="DE" term="%22info%22">info</searchLink><br /><searchLink fieldCode="DE" term="%22musiq%22">musiq</searchLink>
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  Label: Time
  Group: Su
  Data: 547
– Name: Abstract
  Label: Description
  Group: Ab
  Data: This study develops the preprocessing theory for time-reversal multiple signal classification (TR-MUSIC) imaging from the one-dimensional (time-domain) gating proposed in earlier papers to a two-dimensional one. Although the one-dimensional gating technique for TR-MUSIC mitigates the effect of noise as well as reduces the required number of antenna elements, the resulting image is subject to focusing errors when there are many targets in the gated region. In this paper, we propose a two-dimensional (angle-and-time-domain) gating technique based on the fast Fourier transform (FFT) and spatial FFT processing. By using these transforms and gating iteratively, we can reduce the number of targets to be detected at one time. The TR-MUSIC technique for the gated data provides more reliable images and precisely estimated coordinates compared with the previous work. (C) 2014 Elsevier B.V. All rights reserved.
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  Data: http://hdl.handle.net/2115/58558
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      – Text: English
    Subjects:
      – SubjectFull: Time reversal methodology
        Type: general
      – SubjectFull: Multiple signal classification (MUSIC)
        Type: general
      – SubjectFull: Target detection
        Type: general
      – SubjectFull: Radar imaging
        Type: general
      – SubjectFull: Gating technique
        Type: general
      – SubjectFull: Multistatic data matrix
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      – SubjectFull: info
        Type: general
      – SubjectFull: musiq
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      – TitleFull: Iterative angle-and-time-domain gating technique for time-reversal MUSIC imaging
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            NameFull: Ogawa, Yasutaka
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            NameFull: Nishimura, Toshihiko
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            NameFull: Ohgane, Takeo
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