Limitations On The Performance Of Passive Infrared Sensors

John A. Jamieson

doi:10.1117/12.954463

20 January 1976 Limitations On The Performance Of Passive Infrared Sensors

John A. Jamieson

Proceedings Volume 0062, Modern Utilization of Infrared Technology I; (1976) https://doi.org/10.1117/12.954463
Event: 19th Annual Technical Symposium, 1975, San Diego, United States

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.

Citation Download Citation

John A. Jamieson "Limitations On The Performance Of Passive Infrared Sensors", Proc. SPIE 0062, Modern Utilization of Infrared Technology I, (20 January 1976); https://doi.org/10.1117/12.954463

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