Simulative calculation of temperature variation and infrared detection probability of the desert ground target

Bao-guo Wang; Yong-jie Xie; Yao-chen Yuan; Wen-ming Zhang

doi:10.1117/12.2268552

8 March 2017 Simulative calculation of temperature variation and infrared detection probability of the desert ground target

Bao-guo Wang, Yong-jie Xie, Yao-chen Yuan, Wen-ming Zhang

Author Affiliations +

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102554Z (2017) https://doi.org/10.1117/12.2268552
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

The temperature variation and the infrared detection probability of the ground target in desert was studied through simulative calculation. The model of temperature variation of the ground and the target was established, of which the ground temperature variation was simplified as a one dimensional transient heat conduct model and the heat equilibrium state of the target was hypothesized as two basic idealized types. Furthermore, the calculation formula of every radiation part such as the sun direct radiation and scatter radiation, atmosphere long wave radiation, atmosphere convective heat conduction, etc., were analyzed and established. Afterwards, the model was constructed and calculated using Comsol software. Finally, the infrared detection probability of the target was calculated using NETD of the infrared imager under the point target hypothesis.

Citation Download Citation

Bao-guo Wang, Yong-jie Xie, Yao-chen Yuan, and Wen-ming Zhang "Simulative calculation of temperature variation and infrared detection probability of the desert ground target", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102554Z (8 March 2017); https://doi.org/10.1117/12.2268552

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KEYWORDS

Target detection

Infrared radiation

Infrared imaging

Infrared detection

Infrared detectors

Sun

Imaging systems

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