空间特定目标表面的双波段红外辐射特性调控方法

Surface structure design and prototype production of dual-band infrared space-specific target

摘要:

红外诱饵等空间特定目标是对抗红外探测的主要手段之一。随着双色制导技术的发展，红外探测灵敏度不断提升，目标识别能力不断增强，这对空间特定目标表面的双波段红外辐射的逼真性提出了要求。通过改变空间特定目标表面发射率控制其红外辐射强度的大小，使用数值仿真的方法进行计算，从而提出了对空间特定目标表面红外辐射特性的调控方法。此外根据所确定的表面发射率、可见光吸收及红外发射比例以及内热源功率，选择合适的表面材料以及热功率施加方法，在保证空间特定目标表面机械性能的同时，使空间特定目标满足光照及阴影区的双波段红外辐射特性要求，并进行模型的制作以及热真空实验，证明了理论计算的准确性。

Abstract:

Space specific targets such as infrared decoys are one of the main means to combat infrared detection. With the development of two-color guidance technology, the infrared detection sensitivity is continuously improved and the target recognition ability is continuously enhanced, which puts forward requirements for the fidelity of dual band infrared radiation on the surface of specific space targets. In this paper, the surface emissivity of space specific target is controlled, and the infrared radiation intensity is calculated by numerical simulation, so the regulation method of infrared radiation characteristics of space specific target surface is proposed. In addition, appropriate surface materials and thermal power application methods are selected according to the determined surface emissivity, visible light absorption and infrared emission ratio and internal heat source power, so as to ensure the surface mechanical properties of the specific space target and make the specific space target meet the requirements of dual band infrared radiation characteristics in the light and shadow area, and carry out the model making and thermal vacuum experiment, in which way the accuracy of theoretical calculation is proved.