Infrared tellurium two-dimensional acousto-optic processor for synthetic aperture radar

Dominique Jacques Souilhac; Dominique Billerey

doi:10.1117/12.46063

1 May 1991 Infrared tellurium two-dimensional acousto-optic processor for synthetic aperture radar

Dominique Jacques Souilhac, Dominique Billerey

Proceedings Volume 1521, Image Understanding for Aerospace Applications; (1991) https://doi.org/10.1117/12.46063
Event: Munich '91 (Lasers '91), 1991, Munich, Germany

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.

Citation Download Citation

Dominique Jacques Souilhac and Dominique Billerey "Infrared tellurium two-dimensional acousto-optic processor for synthetic aperture radar", Proc. SPIE 1521, Image Understanding for Aerospace Applications, (1 May 1991); https://doi.org/10.1117/12.46063

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