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Proceedings Paper

Shift-And-Add For Astronomical Imaging
Author(s): Erez Ribak; E. Keith Hege; Nicolas V Strobel; Julian C. Christou
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Paper Abstract

We have obtained diffraction-limited astronomical images utilising a variant of the shift-and-add method. We show that the matched filter approach for extending the weighted-shift-and-add method does indeed reduce specklegrams from extended objects and one dominated by photon noise. The method is abberation-insensitive and yields very high dynamic range results. The iterative method for arriving at the matched filter does not automatically converge in the case of photon-noisy specklegrams for objects with more than one maximum. Methods for making the procedure more "artificially intelligent" are discussed.

Paper Details

Date Published: 5 July 1989
PDF: 13 pages
Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951077
Show Author Affiliations
Erez Ribak, Israel Institute of Technology (Israel)
E. Keith Hege, University of Arizona (United States)
Nicolas V Strobel, University of Arizona (United States)
Julian C. Christou, National Optical Astronomy Observatories (United States)

Published in SPIE Proceedings Vol. 1038:
6th Mtg in Israel on Optical Engineering
Rami Finkler; Joseph Shamir, Editor(s)

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