Background Suppression in Double-beam Interferometry Using Tailored Modulation Transfer Functions

By T. F. Zehnpfennig, George A. Vanasse

Background Suppression in Double-beam Interferometry Using Tailored Modulation Transfer Functions
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An optical background suppression technique is described in which the lower spatial frequencies of a background field are effectively suppressed, thereby enhancing the detectability of point-like targets. The technique is particularly applicable for use in image-forming double-beam interferometers in which the individual detector elements are matched to the diffraction-limited resolution of the instrument. The technique utilizes pairs of optical systems whose modulation transfer functions are suitably matched and a number of these pairs are described. (Author).

Book Details

  • Public Domain: Yes
  • Country: US
  • Published: 1978
  • Publisher: Air Force Geophysics Laboratory, Air Force Systems Command, United States Air Force
  • Language: English
  • Pages: 18
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