摘要
在红外告警设备探测目标的过程中,区别于传统定义的点目标和面目标,通过定义有效视场将两者统一起来。推导出目标探测有效电压信号方程,在此基础上定义了描述目标被探测难易程度的物理量——可测度,该参量与目标特性、环境因素及探测器单个像元的最大有效视场有关,从而将不同条件下的等效检验转换成等可测度检验。根据红外告警系统设计条件和实验场检验条件,提出了一种基于等可测度的红外告警设备作用距离等效检验方法,给出了检验实例。
The effective field was introduced to resolve the difference between point and surface target during infra- red warning detection. The effective voltage signal equation of target detection was deduced. Based on the repre- sentation formula, a new physical quantity named detectability which was used to describe the degree of target de- tection difficulty was defined in this paper. For the new parameter was relative to target characteristic, environment factor and the max field of unit pixel, the equivalent test was transformed into equivalent detectabilty test. Accord- ing to the conditions of development and test range, in the basis of equivalent detectabihy, a method to test the ac- tive distance of an infrared warning device equivalently was proposed, then an practical example was given.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第S01期7-11,共5页
Infrared and Laser Engineering
关键词
等效检验
可测度
作用距离
红外告警
equivalent test
detectability
active range
infrared warning
作者简介
作者简介：易亚星（1966-），男，教授，博士生导师，主要从事光电对抗研究。Email：yi_yaxing@sina．com.
