前视红外成像系统MTF与MRTD关系的计算  

Calculation the relationship between MTF and MRTD in FLIR

作　　者：张正辉[1] 吴晓靖[2] 许士文[1] 

机构地区：[1]哈尔滨工业大学空间光学工程中心,黑龙江哈尔滨150001 [2]天津津航技术物理所,天津300192

出　　处：《红外与激光工程》2007年第z2期23-26,共4页Infrared and Laser Engineering

摘　　要：作为评价红外成像系统性能的重要指标,MTF与MRTD之间存在着相互影响、相互制约的关系。应用红外成像系统理论,从工程实践出发,对以人在回路中方式工作的、前视红外成像系统的MTF与MRTD之间的关系进行了理论分析与计算,得出了在给定系统识别距离、目标特性条件下,两项指标关系的简便计算方法。实验结果表明,利用该计算方法能够较好地预测系统性能,其计算结果可以作为系统总体性能预测的依据。As important characterization of evaluating FLIR performance,MTF and MRTD affect each other and restrict each other.From practical view,making use of the theory of infrared imaging system,it analyzes and calculates the relationship between MRTD and MTF,particularly the FLIR work in human-in-the-loop.At same time,it puts forward a feasible and easy calculation method,in condition of specific range of recognition and target characterization.According to the result of experiments,the method can represent the system performance correctly,which can be used as an evidence of predicting system general performance.

关 键 词：红外成像 MRTD NETD MTF 

分 类 号：TN21[电子电信—物理电子学]