Abstract:

The effect of spectral emissivity on the simulation validity in the simulation scene of the aerial target is studied,and the GPU simulation is performed on the OGRE-based infrared scene platform.Atmospheric radiation and environment radiation of the infrared scene are calculated by Modtran.The data are sampled using the computer parallel processing technology of GPU to simulate the effect of the atmospheric radiation transfer and reflection characteristics.Finally,the fine simulation of the aerial target scene is achieved on the OGRE-based infrared scene simulation platform.The simulation results show that the method effectively increases the simulation authenticity only with a slight decrease in simulation efficiency.

Key words: spectral emissivity;atmospheric effect;OGRE;GPU programming