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Proceedings Paper

Natural terrain infrared radiance statistics in a wind field
Author(s): Rao Ruizhong; Zhengfang Song
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Paper Abstract

Forced heat convection in a wind field is considered, and the infrared radiance statistics of natural terrain are analyzed by a heat balance equation. A first-order approximation is used for the terrain radiance term in the equation. The results show that forced heat convection can change the statistic distribution of the radiance in a thermal image of natural terrain. With the increase in wind speed, the most probable and average temperature will trend to the steady air temperature over the terrain, and the thermal image contrast will decrease. The saturation phenomena of the forced convection effect are also mentioned.

Paper Details

Date Published: 1 July 1991
PDF: 6 pages
Proc. SPIE 1486, Characterization, Propagation, and Simulation of Sources and Backgrounds, (1 July 1991); doi: 10.1117/12.45773
Show Author Affiliations
Rao Ruizhong, Anhui Institute of Optics and Fine Mechanics (China)
Zhengfang Song, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 1486:
Characterization, Propagation, and Simulation of Sources and Backgrounds
Wendell R. Watkins; Dieter Clement, Editor(s)

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