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《Opto-Electronic Engineering》 2007-01
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Simulation of dynamic infrared signature of ground targets

CHEN Xuan,YANG Li,XIE Jun ( Academy of Ship and Power Engineering, Naval University of Engineering, Wuhan 430033, China )  
By using proper hypothesis, a three-dimensional radiation and convection coupling heat transfer problem was simplified into a one-dimensional heat transfer problem, and the real-time temperature field and infrared intensity variation of the target were also calculated and simulated with finite-difference techniques. Based on these, the max-lock- range of infrared detection system was calculated by the different infrared intensity between background and target, and its directional diagram was drawn. The influence of stealthy coatings on the lock-range of the target was also analyzed. The max-lock-range in 3~5μm reduced from 7km to 5.5km,and the max-lock-range in 8~12μm reduced from 13km to 7.5km.
【Fund】: 国防科技重点实验室基金项目资助
【CateGory Index】: TP391.9;TN215
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