红外技术, 2015, 37 (6): 496, 网络出版: 2015-09-08   

激光红外大气传输透过率模型研究

Research on the Transmittance Model of Laser Infrared Atmospheric Transmission
作者单位
北京信息科技大学仪器科学与光电工程学院, 北京 100192
摘要
为了提高激光红外传输在工程应用方面的精度, 以辐射传输理论为基础, 考虑大气湿度、温度、能见度等容易测量的因素, 建立了大气透过率衰减的简化模型。利用模型, 对不同波长的激光在各种大气环境及传输路径下的透过率进行了计算, 并与商用软件的计算结果进行对比。实验结果表明: 简化模型减小了运算量; 晴朗大气, 简化模型与软件计算结果在特定波段比较接近, 最小相对误差低至 0.005%。
Abstract
In order to improve the precision of laser infrared transmission in engineering applications, the integrative theoretic model for the transmittance attenuation model was established based on the infrared radiation transmission theory, and various easily measured factors considered, such as the air humidity, temperature and visibility. In the simplified model, the transmittance of laser, which has different wavelengths, was calculated in a variety of atmospheric and transmission paths, then compared with the results of commercial software. The experimental results show that the model can reduce the amount of computation. In the clear air, the calculations of simplified model are close to the software in a particular waveband, and the minimum relative error is as low as 0.005%.

陈芳芳, 耿蕊, 吕勇. 激光红外大气传输透过率模型研究[J]. 红外技术, 2015, 37(6): 496. CHEN Fang-fang, GENG Rui, LYU Yong. Research on the Transmittance Model of Laser Infrared Atmospheric Transmission[J]. Infrared Technology, 2015, 37(6): 496.

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