关于目标热对比度(△T)概念的研究  

A Survey on the Studies of Target Thermal Contrast(T)Concept

作　　者：王忆锋[1] 冯炽焘[1] 

机构地区：[1]昆明物理研究所

出　　处：《红外技术》1999年第2期7-10,共4页Infrared Technology

摘　　要：红外热成像系统的性能与目标热对比度或温差Ｔ密切相关，因此△Ｔ的精确计算十分重要。传统的Ｔ定义没有考虑目标及背景的温度分布，在描述目标的红外特征方面己显现出其局限性。国外学者对Ｔ概念进行了比较深入的研究，本文介绍有关的研究结果。Given the dependance of infrared imaging system performance on target thermal contrast or temperature difference (T) between target and background, the accuracy of T b of critical im- portance.Traditional defintion of T neglects temperature variance across the targetand is not prop- er representations for describing temperature varying features of a target and/or its backgmund. Its inadequacy in characterizing infrared signatures is becoming increasingly apparent. A survey on the studies of T concept is given in this paper.

关 键 词：目标热对比度 对比度 温差 红外热成像系统 

分 类 号：TN211[电子电信—物理电子学]