根据红外辐射的基本原理,提出了基于温度场分布的飞机红外辐射计算方法.依据红外探测器的工作原理,得到经大气传输和目标与背景对比后探测器接收到的有效目标信息.通过探测器对某型飞机探测距离的计算和分析,总结出了影响探测效果的五个主要的飞机红外辐射特性:光谱特性、方位特性、高度特性、速度特性和发动机状态特性.在此基础上讨论了红外探测器的设计和使用上以及飞机红外隐身上应注意的问题.%According to IR radiation's principle,the calculating method of airplane's IR radiation on the basis of temperature field distributing is proposed. The useful object information which the IR detector receives after atmosphere's transmission is gained. By calculating and analyzing the detected distance of a certain plane,five significant characteristics of airplane's infrared radiation that influence the detecting effect are pointed out,which include spectrum characteristic, direction characteristic,altitude characteristic,velocity characteristic and engine state characteristic. Based on the conclusions,problems about IR detector and plane's IR stealth are discussed.
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