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Proceedings Paper

A Method For Extending The Dynamic Range Of Sampled IR Systems
Author(s): Carl M. Evans; John Voboril
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Paper Abstract

A technique for synthetically extending the upper limit of the dynamic range of sampled IR sensor systems was developed. The method utilizes the secondary overshoot, commonly found in the response of tuned amplifiers, to estimate the magnitude of the primary overshoot. This "Second Overshoot Technique" may be used in the saturated and unsaturated operating regions of the amplifiers. In both operating regions, it is possible to estimate the magnitude of an amplifier's primary overshoot by careful observation of the magnitude and relative occurrence time of the secondary overshoot. The net effect is an artificial extension of the top end of the sensor's dynamic range. This technique can be useful in either planned or existing systems as a means of extending the dynamic range. This extension method is presently in use on an orbiting satellite sensor system.

Paper Details

Date Published: 12 December 1978
PDF: 8 pages
Proc. SPIE 0156, Modern Utilization of Infrared Technology IV, (12 December 1978); doi: 10.1117/12.956785
Show Author Affiliations
Carl M. Evans, Aerojet ElectroSystems Company (United States)
John Voboril, Aerojet ElectroSystems Company (United States)

Published in SPIE Proceedings Vol. 0156:
Modern Utilization of Infrared Technology IV
Irving J. Spiro, Editor(s)

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