基于气象参数的地物背景红外特征研究  

Study of Infrared Characteristics of Ground-object Background Based on Meteorological Parameters

作　　者：陈翾[1,2] 刘中华[3] 林春生[2] 

机构地区：[1]中国人民解放军91336部队 [2]海军工程大学兵器工程系 [3]中国人民解放军92054部队

出　　处：《红外》2015年第7期21-25,共5页Infrared

摘　　要：随着红外探测技术的飞速发展,地物背景红外特征研究也具有越来越重要的军事意义。根据热平衡方程建立了地物背景表观温度的经验模型,并推导出了与4种基本气象参数相关联的背景表观温度表达式。在此基础上,运用最小二乘法对实测数据拟合出了未知参数bi（i=1～5）。经对比发现,模拟结果与实测结果基本相符,其误差控制在3.5℃以内。模拟结果很好地反映出了背景表观温度的基本走势。在缺少有效观测手段时,这种方法可以快速地对地物背景的表观温度给出较好的初步估计。通过误差分析,发现环境温度的测量精度对背景温度计算精度的影响最为明显。With the rapid development of infrared detection technologies,the study of the infrared characteristics of ground-object background becomes more and more important militarily.An empirical model of the apparent temperature field of ground-object background is set up according to the heat balance equation and the expression of apparent temperature associated with four basic meteorological parameters is derived.On this basis,the unknown parameter bi（1-5） is fitted for the measured data by the least square method.By comparison,it is found that the simulated result agrees with the measured result substantially.The error is controlled within 3.5.The simulated result reflects the tide of apparent temperature well.The method can give good estimation of the apparent temperature of ground-object rapidly.Through error analysis,it is found that the measurement accuracy of ambient temperature has the most evident influence on the calculation accuracy of background temperature.

关 键 词：地物背景 红外特征 气象参数 最小二乘法 温度场 

分 类 号：TN215[电子电信—物理电子学]