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Proceedings Paper

Spotlight-mode synthetic aperture radar without Fourier transforms
Author(s): Jordan Mann; Robert A. Hummel
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Paper Abstract

The spotlight mode SAR (SPSAR) image reconstruction problem may be solved using a backprojection algorithm in the spatial domain while the radar return signals being recorded. The resulting SPSAR algorithm, studied by Desai and Jenkins, permits parallelization of the image reconstruction, and obviates a costly Fourier-domain resampling step. We show that by using a radar signal of a specially designed form with backprojection, the reconstruction becomes extremely simple, eliminating the need for Fourier processing of the return signals, by incorporating a derivative of a Hilbert transform into the emitted signal. We show some simulation results using this new method. We also briefly discuss an algorithm for reconstruction of a function residing on a hemisphere from its radar returns without geometric approximation or distortion.

Paper Details

Date Published: 9 June 1994
PDF: 12 pages
Proc. SPIE 2230, Algorithms for Synthetic Aperture Radar Imagery, (9 June 1994); doi: 10.1117/12.177167
Show Author Affiliations
Jordan Mann, Weizmann Institute of Science (Israel)
Robert A. Hummel, Courant Institute of Mathematical Sciences/NYU (United States)

Published in SPIE Proceedings Vol. 2230:
Algorithms for Synthetic Aperture Radar Imagery
Dominick A. Giglio, Editor(s)

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