空中目标红外场景建模及仿真研究

研究空中目标仿真场景中光谱发射率对仿真真实度的影响,在OGRE的红外场景仿真平台上,实现基于GPU空中目标红外场景仿真。利用Modtran软件计算红外场景的大气和环境辐射,得到了大气辐射和环境辐射特性。利用GPU的并行处理对数据进行采样,模拟出大气辐射传输效应和反射效应。基于OGRE红外场景仿真平台,实现空中目标场景的精细仿真。仿真结果表明,该方法在损失较小仿真效率的前提下,有效地提高了仿真的真实性。

Research on the Model and Simulation of the Aerial Target Infrared Scene

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.