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Proceedings Paper

Infrared tellurium two-dimensional acousto-optic processor for synthetic aperture radar
Author(s): Dominique Jacques Souilhac; Dominique Billerey
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Paper Abstract

In this paper an infrared single element two-dimensional acoustooptic processor using a crystal of tellurium will be described, that can process to return echos of each pulse to form the image of the terrain illuminated by the SAR in real-time. This highly compact processor is designed to maintain a range and azimuth resolution of 2 m, will operate with an acoustic bandwith of 200 MHz for an acoustic drive-power of only 1 watt at the optic wavelength of 5 μm and will reach a dynamic range of the order of 40dB determined by the Hg Cd Te CCD array. This processor will control range and azimuth sidelobes below 40 dB, in a minimum detector integration time of 200 ms to resolve a 5 Hz Doppler frequency.

Paper Details

Date Published: 1 May 1991
PDF: 17 pages
Proc. SPIE 1521, Image Understanding for Aerospace Applications, (1 May 1991);
Show Author Affiliations
Dominique Jacques Souilhac, Ecole Nationale Superieure d'Electicite et de Mecanique (France)
Dominique Billerey, Ecole Nationale Superieure d'Electicite et de Mecanique (France)

Published in SPIE Proceedings Vol. 1521:
Image Understanding for Aerospace Applications
Hatem N. Nasr, Editor(s)

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