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本文分析了再入目标的红外辐射特性及主要影响因素认为：表征再入目标辐射强弱的物理量主要为再入目标的表面温度、表面积和发射率；表征再入目标材料红外辐射能力的物理量为辐射率（发射率）。进而探讨了高红外发射率材料，认为：几种化合物混合烧结后可在一段连续波段提高材料的红外发射率。
This paper analyzes the infrared radiation characteristics of the reentry target and its main influencing factors. It is considered that the physical quantities that characterize the reradiation intensity are mainly the surface temperature, the surface area and the emissivity of the reentry target. The physical quantities that characterize the reradiation ability of the target material are Emissivity (Emissivity). Then the high infrared emissivity materials are discussed, and it is considered that the infrared emissivity of the materials can be increased in a continuous wave band after several compounds are mixed and sintered.