红外制导**在研制中，需要大量的红外场景数据做测试保障。本文由红外图像的成像机理出发，提出了一种基于实测数据温差扰动的二维红外图像实时生成方法。该方法将图像区域平均灰度与环境温度直接关联，用整体分块的方法代替逐像素的繁琐计算，在提高运算速度的同时，生成不同时段的红外图像。实验表明，本文方法生成的红外图像，不仅能保证运算实时性，而且目标与背景具有与实测图像相同的温度变化趋势和较好的逼真度，是一种行之有效的方法。

For the development of infrared-guided weapons, a large number of infrared scenes are needed for testing. Beginning with the mechanism of infrared images, a real-time infrared image generation method based on measured temperature difference disturbance is proposed. From this method, the average gray-level region of the image is correlated to the ambient temperature, and the block pixel calculation method is used, instead of pixel-to-pixel. Experiments show that the proposed method not only decreases real-time calculation, but also achieves better performance. This method is both feasible and effective when the target and the background have the same temperature-changing trend in the measured images.