摘要
目标表面温度和红外辐射的理论计算对红外热像的模拟、控制目标红外辐射进而实现红外隐身等领域有着重要意义。各种复杂因素的影响导致地面目标表面温度的计算非常复杂。边界条件对目标的表面温度理论计算精度有着重要的影响,分析了影响目标表面温度边界条件的各种因素,得到了计算地面目标表面温度的一般方法。以一维导热微分方程为例,计算了某建筑物墙壁外表面温度白天随时间的变化关系,并与实际测量值进行了比较,结果表明理论计算较为准确。最后在此基础上,对目标的红外辐射进行了理论计算和讨论。
The calculation of surface temperature and infrared radiation for target plays an important role in the field of infrared image simulation and controlling the target infrared radiation to realize infrared camouflage and so on. Various factors make it very complicated to calculate the surface temperature for ground target. Boundary conditions have great effect on the precision in the theoretic calculation of surface temperature. In this paper, the various factors that influence the boundary conditions of target surface temperature are analyzed, then the method for the calculation of target surface temperature is introduced. The relation between temperature and time for some building wall outside surface by daylight is calculated using the one dimension heat conduction differential equation. It proves that the calculation method is correct according to the comparison between the result values and the measured values. On the basis of the calculation of temperature, the infrared radiation is calculated and discussed.
出处
《红外与激光工程》
EI
CSCD
北大核心
2006年第5期563-567,共5页
Infrared and Laser Engineering
关键词
地面目标
温度
红外辐射
Ground target
Temperature
Infrared radiation
