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Applied Optics

Applied Optics


  • Vol. 17, Iss. 3 — Feb. 1, 1978
  • pp: 337–347

Coded aperture imaging with uniformly redundant arrays

E. E. Fenimore and T. M. Cannon  »View Author Affiliations

Applied Optics, Vol. 17, Issue 3, pp. 337-347 (1978)

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Uniformly redundant arrays (URA) have autocorrelation functions with perfectly flat sidelobes. The URA combines the high-transmission characteristics of the random array with the flat sidelobe advantage of the nonredundant pinhole arrays. This gives the URA the capability to image low-intensity, low-contrast sources. Furthermore, whereas the inherent noise in random array imaging puts a limit on the obtainable SNR, the URA has no such limit. Computer simulations show that the URA with significant shot and background noise is vastly superior to random array techniques without noise. Implementation permits a detector which is smaller than its random array counterpart.

© 1978 Optical Society of America

Original Manuscript: April 18, 1977
Published: February 1, 1978

E. E. Fenimore and T. M. Cannon, "Coded aperture imaging with uniformly redundant arrays," Appl. Opt. 17, 337-347 (1978)

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