Coded aperture imaging with uniformly redundant arrays
Journal Article
·
· Appl. Opt.; (United States)
Uniformly redundant arrays (URAs) 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 given 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 that is smaller than its random array counterpart. 12 figures.
- Research Organization:
- Los Alamos Scientific Lab., NM
- OSTI ID:
- 6630148
- Journal Information:
- Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 17:3; ISSN APOPA
- Country of Publication:
- United States
- Language:
- English
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