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Proceedings Paper

Single-element diffractive optical system for real-time processing of synthetic aperture radar data
Author(s): Filippus S. Roux
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Paper Abstract

We present an optical system for the polar formatting of data in a spotlight mode SAR. This system is implemented with only one holographic optical element (HOE). Previously such a HOE could not be produced because the phase of the required transmission function of the HOE does not obey the continuity condition which is prerequisite for the conventional implementation of such optical transforms. Here we show how a HOE can be produced to perform the complete polar formatting transform by incorporating branch point phase singularities in the transmission function of the HOE. The computation of the transmission function is shown and numerically computed diffraction patterns obtained from this HOE are also shown.

Paper Details

Date Published: 20 April 1995
PDF: 10 pages
Proc. SPIE 2404, Diffractive and Holographic Optics Technology II, (20 April 1995); doi: 10.1117/12.207477
Show Author Affiliations
Filippus S. Roux, Potchefstroom Univ. for Christian Higher Education (South Africa)

Published in SPIE Proceedings Vol. 2404:
Diffractive and Holographic Optics Technology II
Ivan Cindrich; Sing H. Lee, Editor(s)

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