Complex On-Axis Holograms and Reconstruction without Conjugate Images

  • P. N. Keating
  • R. F. Koppelmann
  • R. K. Mueller
  • R. F. Steinberg


Holograms representing both real and imaginary parts have been obtained with an on-axis reference from an experimental acoustical underwater viewing system and digitally reconstructed to yield only the real image. The absence of both the conjugate imagery and dc and autoconvolution terms allows maximum efficiency in utilizing the relatively limited amount of sampling often available for microwave and acoustic radiation and reduces conjugate image noise. Improved imagery of underwater targets which has been obtained in this way with relatively light sampling (20 × 20) is presented.


Image Space Optical Reconstruction Computer Reconstruction Optical Holography Acoustical Holography 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • P. N. Keating
    • 1
  • R. F. Koppelmann
    • 1
  • R. K. Mueller
    • 1
  • R. F. Steinberg
    • 1
  1. 1.Bendix Research LaboratoriesSouthfieldUSA

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