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Proceedings Paper

Predicting the performance of infrared staring arrays
Author(s): Frederick A. Rosell
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Paper Abstract

A model is presented for analytically predicting the performance of IR staring rays sensitive in the 3-5 and 8-12 micrometer spectral bands. The performance measure will include video SNR, dynamic range, noise equivalent temperature difference, and minimum resolvable temperature difference. The comparative advantages of various arrays such as platinum-silicide, indium-antimonide, and mercury-cadmium-telluride arrays, when viewing terrestrial scenes at various ambient temperatures and through differing atmospheric conditions, are discussed. The analytical approach differs from most others in that signal levels and noise are described in terms of currents which can be readily measured rather than quantized units such as electrons/pixel. Sample calculations are presented, including the effects of optics, cold shields, spectral responsivities, modulation transfer functions, and displays.

Paper Details

Date Published: 5 January 1993
PDF: 30 pages
Proc. SPIE 1762, Infrared Technology XVIII, (5 January 1993); doi: 10.1117/12.138970
Show Author Affiliations
Frederick A. Rosell, Westinghouse Electric Corp. (United States)

Published in SPIE Proceedings Vol. 1762:
Infrared Technology XVIII
Bjorn F. Andresen; Freeman D. Shepherd, Editor(s)

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