1 Ocak 2006 Dergi makalesi Açık Erişim

Sabra, Karim G.; Roux, Philippe; Song, Hee-Chun; Hodgkiss, William S.; Kuperman, W. A.; Akal, Tuncay; Stevenson, J. Mark

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{
  "@context": "https://schema.org/", 
  "@id": 95075, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Sabra, Karim G."
    }, 
    {
      "@type": "Person", 
      "name": "Roux, Philippe"
    }, 
    {
      "@type": "Person", 
      "name": "Song, Hee-Chun"
    }, 
    {
      "@type": "Person", 
      "name": "Hodgkiss, William S."
    }, 
    {
      "@type": "Person", 
      "name": "Kuperman, W. A."
    }, 
    {
      "@type": "Person", 
      "name": "Akal, Tuncay"
    }, 
    {
      "@type": "Person", 
      "name": "Stevenson, J. Mark"
    }
  ], 
  "datePublished": "2006-01-01", 
  "description": "For most shallow water waveguides, the backscattered energy measured in a monostatic configuration is dominated by ocean bottom reverberation. A selected time-gated portion of the measured reverberation signal is used to provide a transfer function between a time-reversal array and a corresponding range interval on the bottom. Ultrasonic and at-sea experiments demonstrate the focusing capabilities of a time-reversal array along the rough bottom interface using these reverberation signals only. The iterative time-reversal technique facilitates robust focusing along the ocean bottom, with little signal processing effort involved and a priori information of the environment. This allows for enhanced detection and localization of proud or buried targets in complex shallow water environments. A passive implementation of the iterative time-reversal processing is used to construct reflectivity maps, similar to a sonar map, but with an enhanced contrast for the strongest reflectors (or scatterers), at the water-bottom interface. Ultrasonic and at-sea experiments show that targets on the seafloor located up to 400 wavelengths from a time-reversal array are detectable in the presence of bottom reverberation. (c) 2006 Acoustical Society of America.", 
  "headline": "Experimental demonstration of iterative time-reversed reverberation focusing in a rough waveguide. Application to target detection", 
  "identifier": 95075, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Experimental demonstration of iterative time-reversed reverberation focusing in a rough waveguide. Application to target detection", 
  "url": "https://aperta.ulakbim.gov.tr/record/95075"
}