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随着红外目标探测和精确制导技术的广泛应用,传统军事目标面临严峻的生存压力。为此,各主要军事强国采取多种措施,竞相发展目标红外辐射特性控制技术,以降低被红外探测系统捕获的概率,达到红外隐身目的。光子晶体是一种人工超颖材料,可以根据需要,通过灵活地设计其结构,改变光子在其中的传输特性。文中运用一维光子晶体带隙理论,设计了一种控制目标红外辐射特性的结构,详细给出了设计方法。计算结果表明对3~5μm和8~12μm两个红外大气传输窗口,该结构对红外辐射的抑制最高可分别达到29和21dB,具有很好的红外辐射特性控制性能。本文所述方法除为飞行器提供红外隐身设计参考外,还可用于攻防对抗仿真中红外隐身目标特性的模拟。
With the widespread application of infrared target detection and precision guidance technology, the traditional military targets face severe pressure to survive. To this end, various major military powers have taken various measures to compete with each other in developing target infrared radiation control technology to reduce the probability of being captured by an infrared detection system, thereby achieving the purpose of infrared stealth. Photonic crystals are artificial metamaterials that can flexibly design their structure as needed to change the transport properties of photons in them. In this paper, a one-dimensional photonic crystal band gap theory is used to design a structure to control the target infrared radiation characteristics. The design method is given in detail. The calculated results show that for infrared transmission window of 3 ~ 5μm and 8 ~ 12μm, the structure can suppress the infrared radiation up to 29 and 21dB, respectively, and has good infrared radiation control performance. The method described in this article, in addition to providing infrared stealth design reference for the aircraft, can also be used to simulate the characteristics of infrared stealth targets in offensive and defensive simulation.