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Proceedings Paper

An Optical Mask System Of Target To Background Discrimination
Author(s): Dennis McCaughey
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Paper Abstract

An optical method of suppressing an imaging system's response to a slowly varying background interference is described. The method involves masking the photodetectors with a photochromic plate and a model for this system is developed. The photochromic mask is shown to be equivalent to an optical Automatic Gain Control (AGC) device. The time response of such a system is developed and simulation results are presented that demonstrate the feasibility of this approach.

Paper Details

Date Published: 9 November 1977
PDF: 7 pages
Proc. SPIE 0124, Modern Utilization of Infrared Technology III, (9 November 1977); doi: 10.1117/12.955840
Show Author Affiliations
Dennis McCaughey, The Aerospace Corporation (United States)


Published in SPIE Proceedings Vol. 0124:
Modern Utilization of Infrared Technology III
Irving J. Spiro, Editor(s)

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