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Proceedings Paper

An Extended Emissive Source Simulation Model
Author(s): Dorothy Bruce
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Paper Abstract

A model has been developed for predicting the radiant image of an extended emissive source. The image produced depends on the angular resolution and image size specifications, on the relative positions of the source and the observation system, and on the wavelength or waveband. Several source sizes are provided. The sources in current use represent fires. The radiative transfer equation is used to calculate path radiance based on emission from hot aerosols and gases. Attenuation within the source and between the source and the observation point are taken into account. An averaging technique is used to simulate intensity averaging which occurs when the source size is small compared with the field of view. The first version of the model, which treated only aerosol emission and attenuation, has been incorporated into a program to produce images on a VAX-DeAnza system.

Paper Details

Date Published: 10 August 1988
PDF: 5 pages
Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); doi: 10.1117/12.945793
Show Author Affiliations
Dorothy Bruce, U.S. Army Atmospheric Sciences Laboratory (United States)

Published in SPIE Proceedings Vol. 0926:
Optical, Infrared, Millimeter Wave Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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