摘要
在前人对云层红外辐射与反射模型研究的基础上,建立了导引头实际接收的表观光谱辐射亮度(包含云层辐射和反射、天空背景与路径等效辐射)模型,适用于导引头远离云层以及处于云层中的情况.通过傅里叶光谱辐射计对几种远离云层的中、低云表观辐射亮度进行了实际测量,并与模型计算数据进行对比.结果表明:在3～5μm和8～12μm波段,模型计算与实际测量结果具有较好的一致性,可以用于导引头的模拟分析.
Applicable for cases when the infrared seeker is located within or away from the cloud, an apparent spectral radiance model in the 3～5 μm and 8～12 μm bands (including infrared radiation and reflectance of cloud, equivalence radiation for the sky background and path equivalence radiation) is founded on the basis of previous studies about infrared radiation and reflectance of clouds. Actual measurement of some kinds of middle and low height cloud using Fourier transformation infrared radiometer(FTIR) was carried out. The results of measurement are compared with data from the model. Results show that actual measurements and data from the model are consistent, and the model is applicable in the simulation and analysis of infrared seekers in the 3～5 μm and 8～12 μm bands.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2003年第4期414-418,共5页
Transactions of Beijing Institute of Technology
基金
国家部委基金资助项目(0330404)
关键词
云团
表观光谱辐射亮度
红外辐射
透射比
cloud
apparent spectral radiance
infrared radiation
transmissivity
