Analysis of IR characteristic of the urban street based on the thermal infrared radiance simulation with aggregation model
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摘要: 城市环境中建筑物的反射辐射与发射辐射是影响城市街道红外遥感特性的重要因素。基于红外辐射聚合模型（Thermal infrared radiance simulation with aggregation model，TITAN），对红外辐射在城市街道场景中的传输过程与分配过程进行了分析，基于Cook-Torrance 模型，理论上计算并重点分析了邻近街道的建筑物窗户与墙壁的反射辐射与发射辐射对街道红外辐射特性的贡献，对影响邻近环境辐射的主要因素进行了讨论，为城市场景中景物的红外辐射特性研究和红外遥感特性分析提供了理论参考。Abstract: The reflected radiation and the emitted radiation from buildings have important influence on the characteristics of infrared remote sensing of the urban street in the urban environment. Firstly, an analyzing of the transmission process of the infrared radiation in the urban canyon was done based on the thermal infrared radiance simulation with aggregation modeling (TITAN) model. Secondy, based on the Cook-Torrance model, a theoretical analysis was conducted to calculate and analysis the contribution of the reflected radiation and the emitted radiation from adjacent walls and windows to the infrared remote sensing characteristics of the urban street. The main factors that affected the radiation form the adjacent buildings were discussed. It can provide theoretical basis for the research of the infrared characteristics and the research of the infrared remote sensing characteristics in the urban environment. It can be applied to the fields of infrared dynamic scenes simulation and urban remote sensing efficiently.
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Key words:
- infrared characteristic /
- the near environment radiation /
- urban canyon /
- BRDF
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