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Proceedings Paper

Iterative Coherent Processor For Bandlimited Signal Extrapolation
Author(s): Robert J. Marks; David K. Smith
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Paper Abstract

Given a truncated portion of a bandlimited image with known x and y bandwidths, the extrapolation problem is to determine the signal over all x and y. An iterative extrapolation algorithm, recently proposed by Gerchberg, requires only the repeated operations of Fourier transformation and truncation. This paper presents a coherent optical processor which implements Gerchberg's iterative extrapolation algorithm in two dimensions. Iteration is performed by simple passive feedback. Experimental results are presented to illustrate the effectiveness of the processor.

Paper Details

Date Published: 22 August 1980
PDF: 6 pages
Proc. SPIE 0231, 1980 Intl Optical Computing Conf I, (22 August 1980); doi: 10.1117/12.958837
Show Author Affiliations
Robert J. Marks, University of Washington (United States)
David K. Smith, University of Washington (United States)

Published in SPIE Proceedings Vol. 0231:
1980 Intl Optical Computing Conf I
William T. Rhodes, Editor(s)

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