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Proceedings Paper

Limitations On The Performance Of Passive Infrared Sensors
Author(s): John A. Jamieson
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Paper Abstract

The performance of passive sensors for surveillance, radiometry, spectroscopy, and astronomy is analyzed using idealizations of engineering features. Sensors are characterized by a finite number of degrees of freedom in each of two angles, wavelengths, and time. An optimum number of degrees of freedom is found to sense a target field in four dimensions. Degrees of freedom are quite freely inter-changeable between dimensions of different kinds. An optimum number of output states is related to the sensing or measurement requirement. An optimum weighting is found for averaging degrees of freedom into output states. Simple equations relate performance to an index of cost. Examples apply the results to estimate limits to sensor performance for several applications.

Paper Details

Date Published: 20 January 1976
PDF: 32 pages
Proc. SPIE 0062, Modern Utilization of Infrared Technology I, (20 January 1976); doi: 10.1117/12.954463
Show Author Affiliations
John A. Jamieson, Jamieson Consultants , Inc. (United States)

Published in SPIE Proceedings Vol. 0062:
Modern Utilization of Infrared Technology I
Irving J. Spiro, Editor(s)

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