基于辐射对比度的变发射率舰船的红外隐身研究  

Study of Infrared Stealth of Ships with Variable Emissivity Based on Radiation Contrast

作　　者：夏舸[1] 杨立[1] 

机构地区：[1]海军工程大学动力工程学院热工教研室,湖北武汉430033

出　　处：《红外》2013年第7期34-38,共5页Infrared

摘　　要：利用固定发射率的红外隐身涂料无法实现全天候舰船红外隐身。以小于0.04的目标与背景的辐射对比度作为红外隐身的评判标准,通过计算分析目标与背景的红外特征模型,得到了实现红外隐身所需的目标表面发射率变化范围,提出利用电致变色材料来改变目标表面的平均发射率。与固定发射率的普通红外隐身涂料相比,改变发射率后的红外隐身涂料的隐身效率有了很大的改善,基本能满足目标的全天候红外隐身要求。It is impossible to implement all-weather infrared stealth of a ship by using a coating with a changeless emissivity.Taking the radiation contrast less than 0.04 of a target and the background as a judgment criteria,the variation range of the target surface emissivity required for infrared stealthy is obtained by calculating and analyzing the infrared characteristic models of the target and background. A method for changing the average surface emissivity of a target by using electrochromic materials is proposed.Compared with the common infrared stealthy coating with a fixed emissivity,the stealthy efficiency of the infrared stealthy coating with a changed emissivity is improved greatly.It can meet the all-weather infrared stealth requirement of a target basically.

关 键 词：海上目标 红外特征 辐射对比度 平均发射率 电致变色 

分 类 号：TN976[电子电信—信号与信息处理]