在对基于 DMD红外场景仿真系统的研究中, 为了提高仿真系统的性能, 对黑体光源温度的确定进行了研究。首先, 给出了黑体辐射的理论基础; 其次, 阐述了基于 DMD的中波红外场景仿真系统的能量传递模型, 然后分析了影响系统能量传递效率的两个因素, 一是 DMD能量传递效率, 二是投影系统的透过系数; 最后, 给出了计算黑体温度范围的参数公式, 通过 MATLAB运算可以解出温度范围。

In the process of researching infrared scene simulation system based on DMD, in order to improve the performance of system, the temperature scope is investigated. Firstly, the theory of blackbody radiation is given. Secondly, the calculating model of infrared scene simulation system transmiting efficiency is displayed. Then, two factors which affected transmiting efficiency of system are analysed, one is transmiting efficiency of DMD, the other one is transmission ratio of projecting optical system. At last, the parameter formula of calculating temperature scope is given,which is used to get the result via the MATLAB software.