红外隐身涂料涂敷效果评估模型研究

Research on Painting Effect Evaluation Modeling of Infrared Camouflage Paints

随着现代军事光电对抗的日益激烈,通过隐身涂料的涂敷实现目标隐身是提高目标生存和突防能力的有效手段之一。如何提高涂料涂敷的隐身效率,建立有效的涂敷效果评估模型是关键。首先从红外目标识别基本原理出发,给出了涂敷效果评估的基本方法;在此基础上采用复杂目标轮廓相对于传感器的投影面积,确立了目标临界尺寸;根据涂层红外发射比,考虑面元可见性和面积加权因素的影响,计算了伪装目标的热对比度;最后引入传感器系统模糊因子,模拟了目标的红外模糊图像,分析了对目标识别周期标准的影响。多种实验证明,可方便有效地完成涂料涂敷效果量化评估。

With the increasingly drastic electro-optical countermeasures in military application, camouflage painting becomes one of effective measures to realize target stealth for improving the survivability and penetration capabilities. An effective painting effect evaluation modeling is a key to improve the painting stealth efficiency. Firstly, an assessment modeling method of camouflage paints was established based on infrared target acquisition principle. Secondly, the target critical dimensions were calculated by the projected area of target figure relative to LOS. Thirdly, according to coating emittance, the average temperature contrast between camouflage target and background was obtained taking consideration of the influence of target patches visibility and weight. At last, the target blurred infrared imaging was simulated by sensor system＇s blurred factor, and discrimination cycle criteria was analyzed. Experiments show that the model is convenient and effective in evaluating the camouflage effect of painting.