红外与毫米波学报2011，Vol.30Issue(3)：284-288,5.
基于实时标校的目标红外辐射测量新方法
Infrared radiation measurement based on real-time correction
摘要
Abstract
Infrared radiation measurement is one of the important ways for target signature acquirement and target recognition, wherein atmospheric correction is a requisite step for obtaining the real radiation of the target.In the conventional radiation measurement method, it is necessary to measure atmosphere parameters by using atmosphere observation devices,and calculate the atmospheric transmittance and the air path radiance from these parameters by using a atmospheric radiation transport calculation software.The uncertainty in the atmospheric transmittance obtained by the conventional method is about 10 ～ 20％, and the target radiation inversion precision is about 12 ～ 23％.To improve the radiation inversion precision, a novel radiation measurement method based on real-time correction was presented, which measured the atmospheric transmittance with high precision by using a reference blackbody near the target.Models for atmospheric transmittance calculation and target radiation inversion were proposed.Analysis showed that the uncertainty in the atmospheric transmittance obtained by the novel method is about 6 ～ 10.5％, and the radiation inversion precision obtained by the novel method is better than 3.5％.A radiation measurement was performed by using a MW infrared camera.Theresults showed that the radiation inversion precision of the conventional method is 7.5 ～ 24.7％, while that of the novel method is 0.1 ～ 3.4％.The novel method has an important significance for improving the target radiation inversion precision.关键词
红外辐射/大气透过率/实时标校/黑体/辐射反演Key words
infrared radiation/ atmospheric transmittance/ real-time correction/ blackbody/ radiation inversion分类
信息技术与安全科学引用本文复制引用
杨词银,张建萍,曹立华..基于实时标校的目标红外辐射测量新方法[J].红外与毫米波学报,2011,30(3):284-288,5.基金项目
中国科学院知识创新工程领域前沿资助项目 （）
