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Volume 6 Issue 6
Aug.  2022
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ZHANG Bao-cheng. TWO PROCESSING FASHIONS OF ARRAY ACOUSTICAL IMAGING[J]. ACTA ACUSTICA, 1981, 6(6): 371-380. DOI: 10.15949/j.cnki.0371-0025.1981.06.005
Citation: ZHANG Bao-cheng. TWO PROCESSING FASHIONS OF ARRAY ACOUSTICAL IMAGING[J]. ACTA ACUSTICA, 1981, 6(6): 371-380. DOI: 10.15949/j.cnki.0371-0025.1981.06.005
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TWO PROCESSING FASHIONS OF ARRAY ACOUSTICAL IMAGING

  • Wuhan Institute of Physics, Academia Sinica

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  • Received Date: March 15, 1979
  • Available Online: August 21, 2022
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    • Abstract
  • The relation between complex and real signal is established by means of Hilbert transform, and the relation between complex amplitude and real signal is established. On above basis two imaging fashions of various processing order from same formula are deduced, one is a fashion of time processing prior to spatial processing, corresponding to holographic processing fashion, other is a fashion of spatial processing prior to time processing. In holographic processing fashion the time scanning holographic fashion of one dimensional linear array is also developed. In fashion of spatial processing prior, the imaging fashion with Sequency Filters is demonstrated. Also the maging concept is used to sythetic aperture approach of acoustical holography, and three various processing fashions are deduced. Finally the comparison between two imaging fashions is discussed.
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