基于MODTRAN模型的路灯透雾性研究

摘要

The LED transmissivity in fog has always been one of the issues of concern. Based on the MODTRAN, which is an atmospheric transmittance and radiative transfer calculation model, the article simulated transmission situations of visible light with different wavelengths under four meteorologic conditions. Meanwhile, taking several street lamps' spectrums as examples, the differences of mist transmittance of light sources with different color temperature were compared. It was proved that the difference of transmittance of visible light is very small and could be neglected.%LED路灯的透雾性能一直是备受关注的问题.本文基于MODTRAN大气透过率及辐射传输计算模型,模拟了四种气象条件下不同波长可见光的透雾情况,同时以几种路灯光谱为实例,比较了不同色温光源透雾性的差异,证明其可见光透射比差别很小,可以近似忽略.